Vestibular rehabilitation for post-concussion is an active, exercise-based intervention designed to Support and Optimize the central nervous system’s ability to process sensory information following a mild traumatic brain injury. By utilizing targeted head movements, gaze stability drills, and balance challenges, clinicians Facilitate neuroplastic adaptation to mitigate symptoms of dizziness, visual dependency, and surface dependency. This approach addresses the sensory mismatch that often follows a concussive event, shifting the patient from maladaptive sensory strategies toward functional recovery.

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How Did Early Insights Arise Amidst Wartime Chaos?

In the 1940s, as the world grappled with the devastating effects of World War II, a group of pioneering physicians and therapists quietly laid the groundwork for a revolutionary approach to concussion management. This article serves as a resource for vestibular professionals interested in deepening their understanding of the origins and current relevance of vestibular rehabilitation for post-concussion care. By tracing this history, we aim to provide practical context for those working to implement evidence-based strategies in 2026.

Dr. F.S. Cooksey, working alongside the renowned otologist Sir Terence Cawthorne at King’s College Hospital in London, recognized the profound impact of vestibular dysfunction on individuals suffering from concussions. Their groundbreaking work challenged the prevailing notion that rest was the sole remedy for concussion, advocating instead for active rehabilitation to address dizziness and imbalance. They understood the profound distress that vestibular disturbances caused, with Cawthorne (1945) noting that some patients felt like ‘the end of the world has arrived.’ This emphasized the need for a comprehensive approach that addressed the physical symptoms and the psychological impact of these conditions.

Why Did Concussion Management Shift Toward Rest?

Despite these early insights, vestibular rehabilitation for concussion faded into obscurity in the decades following World War II. Several factors attributed to this decline. The advent of neuroimaging technologies such as CT and MRI scans enabled more detailed visualization of the brain, shifting the focus toward identifying and managing structural brain injuries.

The emphasis on rest—the ‘dark room’ approach—aimed to protect the injured brain. While well-intentioned, this approach inadvertently overshadowed the potential benefits of early and active rehabilitation. As a result, the invaluable lessons learned during the war years were temporarily forgotten. Studies now estimate that up to 30% of concussion patients experience persistent symptoms lasting longer than three months, often due to a lack of early sensory intervention.

How Does the Collaborative Renaissance Shape Modern Practice?

In 2026, we find ourselves in a true renaissance of vestibular science. Interest in rehabilitation has surged, fueled by a growing body of research highlighting how we can Support the vestibular microenvironment. Leading institutions have been at the forefront of this revival:

• University at Buffalo: Researchers here developed objective protocols to evaluate vestibular deficits, such as the Buffalo Concussion Treadmill Test. In clinical practice, we now use these protocols to Coordinate physiological recovery with sensory retraining.

• University of Pittsburgh Medical Center (UPMC): Their multidisciplinary team has significantly contributed to understanding and treating concussions by developing evidence-based vestibular protocols that prioritize active movement over isolation.

• Stanford University: The Stanford Concussion and Brain Performance Center utilizes advanced technologies to Optimize the signaling pathways required for gaze stabilization.

These institutions have re-established vestibular rehabilitation as an integral component of concussion management, emphasizing that we must address the sensory mismatch and maladaptive sensory strategies that patients develop when their natural balance system is compromised.

What New Insights Define the 2026 Landscape?

As we look at the current state of the field, we must focus on visual dependency and surface dependency. When the vestibular system provides unreliable data, the brain over-relies on vision or touch to maintain upright posture. Modern rehabilitation does not just ‘fix’ a reflex; it seeks to Facilitate a more resilient sensory hierarchy. We now understand that:

1. Sensory Integration is Key: We must move beyond simple eye movements to complex environments that challenge the patient’s ability to ignore conflicting visual data.

2. The Microenvironment Matters: Current research into regenerative signaling suggests that we can Support the neural integrity of the vestibular nuclei through specific movement-based ‘dosage.’

3. Active Voice in Recovery: We no longer ‘wait and see.’ We actively Optimize the recovery window by introducing controlled sensory input as soon as the patient tolerates it.

How Can We Shape the Future of Vestibular Care?

The story of Dr. Cooksey and the Cawthorne-Cooksey exercises reminds us that the roots of our field run deep. To move forward, practitioners should:

• Assess all concussion patients for vestibular dysfunction, even in the absence of overt vertigo.

• Identify visual dependency early to prevent long-term maladaptive habits.

• Use ‘experimental-only’ frameworks to Facilitate and Support the recovery process without making definitive claims of a ‘cure.’

• Link back to foundational frameworks, such as the Werner Sensory Integration Method, to ensure a systematic approach to complex cases.

By honoring the past and embracing the technologies of 2026, we can continue to advance the field and improve the lives of individuals affected by these complex conditions.

References and Further Readings

• Cawthorne T. Vestibular Injuries. Proc R Soc Med. 1946.

• Cooksey FS. Rehabilitation in Vestibular Injuries. Proc R Soc Med. 1946.

• Hall CD, et al. Vestibular Rehabilitation for Peripheral Vestibular Hypofunction: An Updated Clinical Practice Guideline. J Neurol Phys Ther. 2022.

• Robinson-Freeman KE, et al. A Decade of mTBI Experience: What Have We Learned? Front Neurol. 2020.

The identification of the ‘SHAAKE’ (Spontaneous Headshake After a Kinematic Event) marks a significant advancement in identifying acute vestibular and neurological distress in the field. This behavior is a clear physical indicator of a brain struggling to ‘coordinate’ conflicting signals following Sensory Mismatch and the SHAAKE Reflex.

When an athlete experiences a concussion, the immediate result is often a profound ‘sensory mismatch’. The brain suddenly cannot reconcile the data coming from the eyes, the inner ear, and the body’s position in space.

• Canal and Otolith Stimulation: By rapidly shaking the head, the athlete is ‘exciting’ the horizontal semicircular canals and the otolith organs. This creates a high-velocity burst of afferent signaling designed to ‘facilitate’ a clearer internal reference for stability.

• Overcoming Maladaptive Strategies: In the moments following a hit, the brain may default to a ‘maladaptive sensory strategy’, such as extreme ‘visual dependency’ or ‘surface dependency’, because the primary vestibular signal is temporarily compromised. The SHAAKE is a reflexive attempt to ‘optimize’ the vestibular system and regain a sense of center.

• Energy and Signaling: The athlete’s reported feeling of needing to ‘jumpstart’ the brain describes a physiological necessity to increase neural signaling to ‘support’ the ‘integrity’ of the vestibular-ocular and vestibulospinal pathways.

Key Athlete Observations and Clinical Correlations

Athletes report several distinct sensations that drive the SHAAKE, each of which aligns with a specific breakdown in vestibular processing.

• Disorientation and Confusion. This stems from the brain’s inability to ‘coordinate’ incoming sensory data. The SHAAKE serves as a manual reset to clear the ‘sensory mismatch’ and re-establish a stable ‘microenvironment’ for cognitive function.

• Perception of Body in Space. A hit can disrupt the athlete’s spatial orientation. The head-shaking motion provides the high-frequency input necessary to ‘support’ the brain’s body map relative to the environment, thereby mitigating the sudden onset of spatial instability.

• Vision and Balance Changes: When an athlete perceives a blur or lag in their visual field, they use the SHAAKE to assess the ‘integrity’ of their gaze stabilization. It is a physical probe used to see if the brain can still ‘facilitate’ a clear image during movement.

Professional Conclusion

The SHAAKE is a reliable, spontaneous signal that a concussion has occurred. For vestibular professionals, observing this behavior provides immediate evidence that the athlete is experiencing a breakdown in sensory integration. This signal should be used to immediately remove the individual from the environment to ‘protect’ the recovery ‘process’ and avoid further kinematic insult.

The world of elite sports celebrates high performance, but a silent, long-term consequence of sports-related concussions (SRC) often undermines athletic capability: the increased energy drain required just to stand upright. A recent study in Frontiers in Neurology (Al-Husseini et al., 2022) has unveiled a significant revelation. It showed that former elite athletes with persistent post-concussive symptoms (PPCS) use dramatically more energy to maintain postural control and struggle to adapt to balance challenges.

The full article, Long-term postural control in elite athletes following mild traumatic brain injury, is available here: https://pmc.ncbi.nlm.nih.gov/articles/PMC9511028/.

At FYZICAL Therapy & Balance Centers, we have developed the FYZICAL Balance Paradigm, a pioneering solution to address precisely this type of profound, underlying dysfunction. The study’s findings offer a critical analysis of Sensory Performance—the efficiency and accuracy with which the central nervous system (CNS) processes and responds to sensory input—and establish its vital role in preventing injury and maximizing an athlete’s potential. Our paradigm is at the forefront of this understanding, providing a comprehensive approach to restoring balance and performance.

⚡ The Energy Crisis: Postural Control Demands a High Price

The study clearly demonstrates that months after a mild traumatic brain injury (mTBI), the injured athletes expend significantly more energy than their healthy counterparts across all conditions:

• 143% more total energy during balance perturbations.

• 128% more total energy during quiet stance.

Applying the FYZICAL Balance Paradigm (FBP)

In the FBP, we identify this energy expenditure as the physical cost of an inefficient sensory strategy. When an athlete’s primary balance systems (Vestibular, Visual, Somatosensory) become compromised or out of sync, the CNS must work harder, consciously or subconsciously, to achieve stability.

The authors noted that this increased energy use primarily resulted from rapid corrective movements (high-frequency energy>0.1 Hz). This suggests the CNS maintains a state of hyper-vigilance, firing rapid, high-gain movements to prevent a fall. This defines a mismatch strategy in the FBP, specifically identifying:

• VVM (Visual-Vestibular Mismatch): The athlete overrelies on visual cues at the expense of somatosensory and vestibular input, leading to dizziness. The finding that vision helped reduce the stability difference indicates a dependence on visual input to compensate for vestibular deficits.

• SVM (Somatosensory-Vestibular Mismatch): The athlete overrelies on surface cues rather than on visual and vestibular input. This strategy often contributes to the rigidity that drives those excessive, high-frequency corrective movements captured in the results.

This high-energy state forces the CNS to generate constant error messages, demanding high-effort, conscious control rather than the efficient, unconscious, automatic processing of a healthy system. Restoring efficiency is crucial for athletic longevity.

📉 The Failure to Adapt: A Direct Threat to Performance and Safety

The most compelling finding for an athletic population involves the diminished sensorimotor adaptation that the study uncovered. While control athletes adapted by 37% to repeated balance challenges, the concussed group only managed 18%. This reduced ability to adapt shows the injured athlete’s brain lacks the essential learning capacity required at the elite level. This failure creates a critical vulnerability that impacts both performance and safety.

First, performance suffers because adaptation drives athletic success. An athlete must constantly adjust to dynamic competition, changing surfaces, and physical fatigue. If the central nervous system (CNS) struggles to learn and reduce error signals, the athlete will continuously expend extra mental and physical energy just to execute baseline movements, directly compromising their speed and skill.

Second, this deficit is a critical safety issue. When the brain fails to learn from a predictable perturbation in a lab setting, it is severely unprepared to respond to an unpredictable force—like a sudden collision or a simple ankle turn on the field. The result is a slow, inaccurate protective reflex, which significantly increases the risk of secondary injuries. As the study authors correctly stated:

‘Results from posturography may predict the length of expected recovery and the outcome of rehabilitation since sensorimotor adaptation is key to both.’

🎯 Treatment Focus: Unwinding the Mismatch and Driving Neuroplasticity

This research strongly justifies the Sensory Performance approach used exclusively at FYZICAL:

1. Identify the Mismatch: At FYZICAL, we use advanced testing, including the FYZICAL-CTSIB (our version of sensory organization testing), to precisely determine which sensory system (or systems) the patient over-relies on (e.g., VVM, SVM, SVVM, or VSVM). This comprehensive testing enables us to tailor our treatments to each athlete's specific needs, ensuring the most effective therapeutic outcomes.

2. Unwind the Central Sensitization: The athlete must regain trust in their system. Our therapists apply progressive, challenging treatments, often within the Safety Overhead Support System (SOS), a state-of-the-art safety system that ensures the athlete’s safety during therapy. This system allows us to safely force the central nervous system to recalibrate, reducing the need for high-frequency, high-effort corrective movements. This CNS adaptation requires the brain to process inputs unconsciously, which may initially worsen symptoms before neuroplastic changes occur.

3. Drive Adaptation (Motor Learning): Treatment must specifically target the capacity to adapt. We challenge the athlete with predictable and then randomized sensory inputs (surface changes, visual flow) to promote sensorimotor adaptation, as the study demonstrated was deficient. We teach the brain to make those corrective changes automatically and efficiently, eliminating the constant, exhausting energy drain.

By focusing our therapy on improving Sensory Performance—reducing the ‘energy drain’ and restoring sensorimotor adaptation—we do not simply treat a symptom; we restore the athlete’s capacity to return to peak performance while actively mitigating their risk of future injuries. Our approach holds the promise of a brighter, injury-free future for athletes.

Brian Werner, PT, MPT, is a physical therapist who has been specializing in vestibular and balance disorders for over a quarter of a century. He is the founder of the FYZICAL Balance Paradigm and one of the co-founders of FYZICAL, LLC, Balance Center Division with Dr. Daniel Deems, MD, PhD, where he serves as the National Director of Vestibular Education & Training.

As vestibular professionals, we have all felt the frustration of receiving a referral for a patient with a generic ‘concussion’ diagnosis. The label tells us the patient sustained an injury, but it provides almost no guidance on how to treat them. A concussion is not a uniform injury. It is a heterogeneous event that creates a broad spectrum of dysfunctions. The patient struggling with cognitive fog and fatigue requires a different plan than the patient experiencing true vertigo or motion sickness.

To move from a passive ‘wait-and-rest ‘ model to an active, targeted rehabilitation program, we need a better system. The Concussion Clinical Profile Screen (CCPS) provides exactly that. This tool, developed by researchers at UPMC, is not just another symptom inventory. It is a clinical roadmap.

What the CCPS Identifies

The CCPS is a 29-item self-report questionnaire that groups a patient’s symptoms into five primary clinical profiles and two key modifiers.

The Five Profiles:

1. Vestibular: This patient reports dizziness, fogginess, imbalance, and nausea, often provoked by head movement or complex visual stimuli.

2. Ocular: This patient describes frontal headaches, eye strain, blurred or double vision, and difficulty focusing, especially with reading or screen time.

3. Post-Traumatic Migraine: This profile involves migraine-like headaches, photophobia, phonophobia, and nausea, often with a variable or intermittent pattern.

4. Cognitive/Fatigue: This patient experiences difficulty concentrating, memory issues, mental “slowing,” and significant fatigue, with cognitive work exacerbating it.

5. Anxiety/Mood: This patient reports increased anxiety, rumination, irritability, and feelings of being overwhelmed or sad.

The Two Modifiers:

1. Cervical: The patient has neck pain, stiffness, and cervicogenic headaches.

2. Sleep: The patient reports difficulty falling asleep, staying asleep, or sleeping excessively.

A patient rarely fits neatly into one box. They almost always present with a dominant profile and one or two secondary profiles. The CCPS gives us the data to identify this dominant driver.

The Vestibular Specialist’s Action Plan

This ‘profile-based‘ approach is where we, as vestibular specialists, take a central role in the recovery team. We are not just ‘dizzy’ therapists; our expertise is critical across multiple profiles.

1. The ‘Home Turf’ Profiles (Vestibular, Ocular, Cervical). The CCPS immediately validates our specialized examination. When the Vestibular and Ocular profiles light up, we know our VOMS (Vestibular/Ocular Motor Screening), gaze stability tests, motion sensitivity testing, and dynamic balance assessments are the priority. These profiles demand active rehab targeting VOR function, oculomotor control (convergences, pursuits, saccades), and habituation to provocative stimuli.

• The Cervical modifier is our domain. We are the musculoskeletal experts who can differentiate cervicogenic dizziness from vestibular dysfunction. We perform a cervical examination and provide manual therapy and specific exercises to unload the neck, which often offer immediate relief for headaches and subjective dizziness.

2. Our Critical Role in Other Profiles: Our utility does not stop at the neck. For the Cognitive/Fatigue and Post-Traumatic Migraine profiles, we are the experts who manage exertional therapy. We use protocols such as the Buffalo Concussion Treadmill Test (BCTT) to determine the patient’s ‘sub-symptom threshold‘ for physical activity. We then prescribe a precise aerobic exercise program to help restore autonomic nervous system regulation without causing a flare-up of symptoms.

For the Anxiety/Mood profile, our work is transformative. Anxiety is a common consequence of the ‘sensory conflict‘ a patient experiences when their vestibular, visual, and somatosensory inputs no longer match. By effectively treating the vestibular and ocular dysfunction, we restore sensory congruence. This gives the patient tangible control over their symptoms, which directly reduces the anxiety and fear-avoidant behaviors that held them captive.

Conclusion: From Guessing to Guiding

The Concussion Clinical Profile Screen is an indispensable tool. It allows us to stop relying on guesswork based on a generic diagnosis. It gives us —the patient and the entire multidisciplinary team — a common language and clear direction. We can immediately identify the primary driver of their symptoms and apply the specific, active treatment that we know works. This profile-based approach is the key to moving our patients from a state of dysfunction and fear to one of recovery and confidence.

Attribution

This form is a clinical adaptation based on the 29-item Concussion Clinical Profile Screen (CCPS). The CCPS is a proprietary tool developed by researchers at the University of Pittsburgh Medical Center (UPMC) Sports Medicine Concussion Program and used within the UPMC Sports Medicine Concussion Program. This adapted form is intended for educational and clinical reference only.

Primary Citation for the Tool

Kontos, A. P., Elbin, R. J., Trbovich, A., Womble, M., Said, A., Sumrok, V. F., French, J., Kegel, N., Puskar, A., Sherry, N., Holland, C., & Collins, M. (2020). Concussion Clinical Profiles Screening (CP Screen) Tool: Preliminary Evidence to Inform a Multidisciplinary Approach. Neurosurgery, 87(2), 348–356.

A seemingly minor head bump or whiplash sends a profound shockwave directly into the delicate inner ear. Labyrinthine Concussion triggers a chain reaction of damage that progresses through distinct phases, ultimately affecting a person’s ability to balance. A physical therapist specializing in vestibular and balance disorders must understand this pathology to treat it effectively.

The Acute Phase: The Historical Roots of the ‘Traveling Wave Theory’

To understand the acute phase of inner ear injury, we must look to the conceptual foundation Georg von Békésy laid. While von Békésy originally developed the ‘Traveling Wave Theory’ in the 1920s to explain how sound energy travels along the basilar membrane in the cochlea, this concept also provides the exact mechanism for traumatic injury.

The mechanism centers on this pressure wave: a sudden physical impact on the head generates it. This wave travels through the fluid-filled inner ear, or labyrinth, causing the ‘disruption of the end organ neuroepithelium.’ Otologists, such as Dr. Harold F. Schuknecht, further supported this application in the mid-20th century. Through pioneering animal experiments, Schuknecht demonstrated that a sudden blow to the head generated a pressure wave—a ‘shock pulse’—that resulted in hearing loss and caused direct injury to the inner ear’s sensory cells.

This shockwave, quickly transmitted from the skull through the inner ear fluids, disrupts the fine structures within the semicircular canals and otolith organs that detect head motion and gravity. This immediate disruption causes the acute dizziness and vertigo that often follow a head trauma.

The Subacute and Chronic Phases: Progressive Breakdown

The initial wave of damage sets the stage for long-term problems. The subacute and chronic phases feature a progressive breakdown of the inner ear’s function.

Several pathological changes occur and contribute to persistent symptoms:

• Vasomotor dysfunction compromises blood supply to the inner ear.

• Progressive inflammatory states drive ongoing damage.

• Secondary degenerative changes and intralabyrinthine ossification destroy the delicate sensory apparatus.

• Endolymphatic hydrops (fluid buildup) and synaptopathy (damage to the nerve connections) further impair signal transmission.

This complex series of events explains why some patients experience dizziness and balance issues for months or even years after the initial injury.

Histopathology: What the Research Shows—A Form of ‘Macular Degeneration’

Ultimately, research into the tissue damage—the histopathology—reveals the permanent structural effects of the concussion. Labyrinthine Concussion causes the following:

• Degeneration of the membranous vestibular labyrinth

• Degeneration of otolithic maculae

• Atrophy of the vestibular nerves

• Vestibular hydrops

In short, the injury affects the actual sensory and neural components that control the balance system. The damage to the otolithic maculae—the sensory pads of the utricle and saccule—is comparable to the degradation seen in ocular macular degeneration.’ Just as damage to the eye’s macula causes a permanent loss of central vision, damage to the otolithic maculae causes a permanent loss of central gravity and motion sensing. The resulting profound damage explains the chronic nature of the symptoms.

Understanding these mechanisms guides the rehabilitation process, which often involves adapting to permanent damage and enhancing the brain’s ability to utilize remaining sensory inputs—the visual and somatosensory systems—to stabilize the body.

References

Békésy, G. v. (1960). Experiments in hearing. McGraw-Hill.

Schuknecht, H. F. (1950). A clinical study of auditory damage from head injury. Laryngoscope, 60(3), 263-273.

As vestibular professionals, we frequently encounter patients struggling with persistent symptoms long after a concussion. This constellation of symptoms, often termed Post-Concussion Syndrome (PCS), is not just incredibly debilitating but also complex. Understanding its multifaceted origins is paramount to effective intervention, and our expertise and dedication are needed to manage this complexity. While a comprehensive approach is always necessary, we can often categorize the primary drivers of PCS into six key areas. Resources like Complete Concussion Management Incorporated (CCMI), a leading Canadian concussion group, have significantly shaped my understanding of these categories.

Let's delve into each:

1. Vestibular Injury (Peripheral and/or Central)

A direct injury to the vestibular system, either peripherally (inner ear, vestibular nerve) or centrally (brainstem, cerebellum, cortex), is a common and often overlooked cause of PCS. This can manifest as dizziness, imbalance, motion sensitivity, and visual-vestibular mismatch.

Assessment requires a thorough audiologic and vestibular screening, including:

• Audiology (Hearing Assessment): To rule out auditory system involvement.

• Video Nystagmography (VNG): Evaluates eye movements and nystagmus to assess vestibular function.

• Caloric Testing: Assesses the horizontal semicircular canal function by introducing warm and cold air/water into the ear canal.

• Video-Based Head Impulse Testing (vHIT): Objectively measures the vestibulo-ocular reflex (VOR) for all six semicircular canals.

• Rotational Chair Testing: Assesses horizontal semicircular canal function across various frequencies and velocities.

• Dynamic Visual Acuity (DVA) Testing: Measures the ability to maintain clear vision during head movement, highlighting VOR deficits.

• Computerized Dynamic Posturography (CDP) Testing: Quantifies balance control under varying sensory conditions, providing insight into sensory organization.

2. Visual Issues

Ocular motor and other specific visual dysfunctions are significant contributors to PCS. Patients may experience headaches, eye strain, difficulty reading, and even exacerbate dizziness.

Here are some specific visual issues to consider:

• Binocular Visual Dysfunction (BVD): This is the post-concussion's most common visual issue. It refers to a problem where the two eyes do not work together (as a team) efficiently or accurately. This can lead to double vision, headaches, eye strain, and difficulty tracking moving objects.

• Accommodative Insufficiency: The eyes have difficulty changing focus from near to far objects or sustaining focus on near objects. This can cause blurred vision, eye strain, and headaches, especially during reading or screen time.

• Vergence Disorders: These relate to the eyes' ability to move inward (convergence) or outward (divergence) to maintain single vision as objects move closer or further away. Problems here can result in double vision, headaches, and difficulty with depth perception.

• Saccadic Dysfunction: Difficulty with quick, accurate eye movements when shifting gaze from one point to another (e.g., reading across a line of text). This can lead to skipping lines, losing place while reading, and difficulty finding objects in a cluttered environment.

• Visual Motion Sensitivity: An increased sensitivity to visual motion, such as busy environments, scrolling on a screen, or passing traffic. This can trigger symptoms like dizziness, nausea, and headaches.

3. Cervicogenic Injury

The cervical spine, particularly the upper cervical region, can sustain an injury during a concussion. This can involve afferent (sensory) input issues from the neck or musculoskeletal/ligamentous injuries. Dysfunction here can lead to headaches, neck pain, dizziness, and balance impairments, often mimicking or contributing to vestibular symptoms.

4. Autonomic Dysfunction

The autonomic nervous system (ANS) controls involuntary bodily functions like heart rate, blood pressure, digestion, and breathing. The ANS can become dysregulated following a concussion, meaning it struggles to balance its sympathetic (fight-or-flight) and parasympathetic (rest-and-digest) branches.

This dysregulation can affect patients in several ways:

• Orthostatic Intolerance: Difficulty regulating blood pressure and heart rate when changing positions (e.g., standing up). This can lead to lightheadedness, dizziness, fatigue, and even fainting.

• Heart Rate Variability Issues: An inability for the heart rate to adapt appropriately to activity or stress, leading to a constant feeling of exertion or fatigue.

• Exercise Intolerance: Patients may experience a rapid increase in symptoms (headache, dizziness, nausea, fatigue) with even mild physical or cognitive exertion due to the ANS's inability to regulate physiological responses appropriately.

• Digestive Issues: Changes in gut motility, leading to symptoms like nausea, constipation, or diarrhea.

• Sleep Disturbances: Difficulty falling or staying asleep, or non-restorative sleep, due to the ANS being in a constant state of arousal.

• Temperature Dysregulation: Difficulty with thermoregulation, leading to feeling too hot or cold without apparent reason.

Essentially, autonomic dysfunction means the patient's body struggles to regulate its internal environment, often putting them in a persistent state of 'stress' or disequilibrium.

5. Ongoing Inflammation and Hormonal Imbalance

The initial brain injury may sometimes trigger a prolonged inflammatory response or lead to hormonal imbalances. This suggests that the brain's healing process was incomplete or disrupted, potentially leading to persistent symptoms like fatigue, brain fog, and mood changes. While more research is emerging in this area, it highlights the complex physiological aftermath of a concussion. Physical therapists must understand that for many individuals, a concussion is not simply an injury that 'heals' and then disappears. Instead, it can leave behind persistent physiological and neurological sequelae that require ongoing management.

6. Psychological Factors

It's crucial to acknowledge the psychological impact of a concussion and how it can contribute to PCS. Patients may develop behavioral overlays, such as avoidance behaviors, to mitigate their symptoms. Anxiety, depression, and post-traumatic stress can also arise or be exacerbated, creating a vicious cycle that perpetuates symptoms and hinders recovery. Addressing these psychological aspects is vital for comprehensive rehabilitation.

By understanding these six key causes, vestibular professionals play a crucial role in providing more targeted assessments and interventions for patients experiencing Post-Concussion Syndrome. A holistic approach that considers these potential drivers will ultimately lead to better outcomes for our patients, and your expertise is integral to this process.

Kevin, an 18-year-old soccer player, knows all too well the frustration of concussion recovery. After sustaining his second concussion in the past year, he is filled with anxiety and uncertainty. His first experience with post-concussion syndrome was a grueling three-month ordeal filled with setbacks and limitations. Now, faci…

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Post-concussion syndrome (PCS) presents a complex array of symptoms that can significantly impact a patient's life. While common symptoms like headaches, dizziness, and cognitive difficulties are widely recognized, the influence of individual structural variations, particularly the Innate Spinal Anatomical (ISA) typology,…

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Have you ever been driving, lost in thought, only to be jolted back to reality by the rumble strips under your tires? That sudden vibration, that jarring awareness that you've drifted too close to the edge, is a visceral reminder that your mind and body weren't quite in sync. Perhaps you were distracted by a phone call, preoccupied with your to-do list, or daydreaming. Whatever the cause, that momentary lapse in focus highlights a fundamental truth: our sense of self and our reality experience depend on a delicate balance between our internal world and the external environment.

This disconnect between the mind and body, often experienced fleetingly and benignly on the open road, takes on a new dimension in the context of concussion. For individuals recovering from a head injury, that feeling of 'drifting' can become an intermittent yet persistent reality. They may experience a range of subtle yet debilitating symptoms, including dissociation and derealization, that disrupt their sense of self and their connection to the world around them.

In my clinical practice, I've encountered numerous patients who struggle to describe these disconcerting experiences. One patient, recovering from a concussion sustained in a significant accident, eloquently described his experience as feeling like a 'sphere within a sphere,' with a constant sense of 'movement or disconnection' between himself and his surroundings. He reported similar sensations during intense physical exertion before his injury, suggesting a possible link between exertion, vestibular function, and dissociation.

To better understand this phenomenon, I've developed an analogy that resonates with patients and healthcare providers: the 'slipping clutch.' Imagine driving a manual transmission car with a failing clutch. Instead of a smooth transition between gears, you experience grinding, resistance, and a loss of control. You must push harder, deliberate with the gas pedal, and carefully control the RPMs to avoid stalling or damaging the transmission. This struggle to maintain a smooth and connected driving experience mirrors the challenges faced by individuals with post-concussion syndrome who experience dissociation and derealization. They feel a disconnect between their mind and body, a lack of fluidity in their interaction with the world, and a constant need to exert extra effort to maintain stability and presence.

This 'slipping clutch' phenomenon highlights the persistent nature of these symptoms and the struggle to maintain a consistent sense of self and reality. Patients may describe feeling 'spaced out,' detached from conversations, or observing themselves outside their body. These experiences can be incredibly distressing and contribute to anxiety, depression, and difficulty returning to pre-injury activities.

The Mind-Body Disconnect

The brain plays a crucial role in integrating sensory information, creating a cohesive perception of the world, and maintaining a sense of self. Concussions can disrupt these intricate processes, leading to a disconnect between the mind and body. This disconnect can manifest as symptoms, including dizziness, balance problems, and the dissociative experiences described above.

The vestibular system, responsible for our sense of balance and spatial orientation, is particularly vulnerable to concussion. Disturbances in vestibular function can contribute to feelings of disorientation, dizziness, and even depersonalization or derealization. Furthermore, the interplay between the vestibular system, visual input, and proprioception (our sense of body position) is crucial for maintaining a stable sense of self within the environment. Disruptions in any of these systems can contribute to the 'slipping clutch' phenomenon.

Vestibular Agnosia: A Possible Contributor

Interestingly, this sense of disconnect between the perception of motion and the actual physical experience has parallels with a phenomenon known as vestibular agnosia. In vestibular agnosia, individuals experience difficulty processing and interpreting signals from their vestibular system, leading to balance and spatial orientation challenges. This condition can arise from various neurological conditions, including traumatic brain injury (TBI), and can contribute to feelings of instability and disorientation.

While the dissociative symptoms experienced by the patient described earlier may not be as severe as full-blown vestibular agnosia, they could represent a milder form of this disconnect, a subtle indication of disruptions within the vestibular system after a concussion. It's important to note that vestibular agnosia is just one of many factors that can contribute to post-concussion symptoms. Other factors, such as visual disturbances, cervical spine dysfunction, autonomic nervous system imbalances, ongoing inflammation, and psychological factors, can also play a significant role.

Navigating the Path to Recovery

Recognizing and addressing these subtle symptoms, including the potential for underlying vestibular dysfunction, is crucial for effective post-concussion management. Vestibular rehabilitation therapy, cognitive therapy, and mindfulness techniques can be valuable tools in helping patients regain a sense of groundedness and manage their symptoms. A comprehensive approach that considers the multifactorial nature of post-concussion syndrome is essential for optimizing patient outcomes.

By understanding the complex interplay between concussion's physical and non-physical aspects, vestibular professionals can provide more targeted and effective patient care. The 'slipping clutch' analogy offers a tangible framework for understanding and communicating these often-overlooked symptoms, paving the way for improved patient outcomes and a smoother journey back to a fully integrated sense of self and reality.

References

1. Seemungal, B. M., Kaski, D., Goldstone, A. P., & Cole, J. (2021). Vestibular agnosia in traumatic brain injury and its link to imbalance. Brain, 144(1), 148–159.

Post-concussion syndrome (PCS) is a multifaceted condition that can present a significant challenge for both patients and clinicians. As physical therapists, we play a crucial and irreplaceable role in helping individuals navigate the often-confusing array of symptoms that can persist following a concussion. This arti…

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Post-concussion syndrome (PCS) can be a frustrating and debilitating condition for athletes, mainly when dizziness is a persistent symptom. As physical therapists specializing in concussion management, we play a vital role in helping these athletes return to their sport and lives. The Buffalo Concussion Treadmill Test (BCTT) is a cornerstone of this recovery process and the subsequent use of heart rate thresholds to stimulate and regulate the autonomic nervous system (ANS).

Understanding Autonomic Dysfunction and Post-Concussion Dizziness

Autonomic dysfunction is a common consequence of concussion. It affects the body's ability to regulate critical functions such as heart rate, blood pressure, and body temperature. This dysregulation can contribute to various PCS symptoms, including dizziness, fatigue, exercise intolerance, and headaches.

For athletes, dizziness can be particularly disruptive, hindering their ability to perform even basic activities, let alone return to competitive play. Traditional approaches to vestibular rehabilitation may not be enough to address the underlying autonomic dysfunction contributing to these symptoms.

The Buffalo Concussion Treadmill Test: An Essential Assessment Tool

The BCTT is a valuable tool for assessing exercise tolerance and detecting autonomic dysfunction in athletes following a concussion. The test involves gradually increasing the treadmill speed and incline while monitoring the athlete's heart rate, blood pressure, and symptoms.

The heart rate threshold identified during the BCTT is critical, providing a target for subsequent exercise-based rehabilitation. Exercising at or near this threshold can stimulate the ANS and promote its reintegration, reducing dizziness and other PCS symptoms.

Utilizing Heart Rate Thresholds in Rehabilitation

Once a heart rate threshold has been established, we can design personalized exercise programs that target the ANS and help athletes regain their autonomic balance. This might involve a combination of aerobic exercise, such as walking or jogging, and strength training, all performed at or near the identified heart rate threshold.

Regular monitoring and adjustments to the exercise program are essential, as the athlete's heart rate threshold and symptoms may change over time. Educating athletes about pacing themselves and avoiding overexertion, which can exacerbate PCS symptoms, is also crucial.

The Importance of Access and Expertise

As physical therapists, it is critical to have access to resources such as treadmills and heart rate monitors, as well as the expertise to administer the BCTT and interpret its results. We must be able to identify athletes with autonomic dysfunction and design effective rehabilitation programs that utilize heart rate thresholds to promote recovery.

By incorporating the BCTT and heart rate thresholds into our practice, we can provide athletes with a targeted and practical approach to managing post-concussion dizziness and other PCS symptoms. This can help them confidently return to their sport and lives, knowing their autonomic system is back on track.

Key Points:

• Autonomic dysfunction is a common contributor to post-concussion dizziness in athletes.

• The BCTT is valuable for assessing exercise tolerance and identifying autonomic dysfunction.

• Heart rate thresholds can guide the design of effective exercise-based rehabilitation programs.

• Physical therapists are crucial in providing access and expertise to athletes with post-concussion dizziness.

By understanding the relationship between autonomic dysfunction, heart rate thresholds, and post-concussion dizziness, we can empower athletes to overcome their symptoms and recover successfully.

Concussion, often classified as a mild traumatic brain injury (mTBI), is a prevalent and potentially debilitating condition affecting individuals of all ages and walks of life. The misconception that concussions necessitate structural brain damage has persisted even among some medical professionals, obscuring the true nature of this complex injury. It is imperative to recognize that concussions primarily manifest as functional disturbances resulting from biomechanical forces exerted on the brain rather than overt structural lesions.

The Biomechanics of Functional Injury

A concussion typically arises from a sudden acceleration, deceleration, or rotational force imparted to the head. This impact triggers a cascade of biomechanical events within the cranial vault, leading to stretching and shearing delicate neural axons and disruption of neuronal communication. These biomechanical forces can induce a metabolic crisis in the brain, leading to ionic imbalances, altered neurotransmitter release, and impaired cellular energy metabolism.

The functional consequences of these biomechanical and metabolic disturbances can be profound, manifesting as a constellation of physical, cognitive, and emotional symptoms. Common manifestations include headaches, dizziness, confusion, memory problems, fatigue, sleep disturbances, irritability, and anxiety. The severity and duration of these symptoms can vary significantly among individuals, highlighting the heterogeneity of concussion presentations.

Reframing Concussion Management

Understanding the functional underpinnings of concussion challenges traditional approaches that primarily focus on detecting structural abnormalities. While neuroimaging techniques such as computed tomography (CT) and magnetic resonance imaging (MRI) may help rule out gross structural lesions, they often fail to capture the subtle functional changes that characterize most concussions.

This recognition underscores the importance of adopting a comprehensive and multifaceted approach to concussion management. This approach, which includes a thorough clinical assessment incorporating a detailed history, physical examination, and neurocognitive testing, reassures patients and healthcare providers and is essential for characterizing the nature and severity of functional impairments.

Management strategies should prioritize brain rest and recovery to restore neuronal function and metabolic homeostasis. This may entail physical and cognitive rest recommendations, gradual reintegration into daily activities, and targeted interventions to address specific symptoms.

Furthermore, emerging research suggests that early, sub-symptom threshold aerobic exercise may promote brain recovery and expedite the return to normal function. This promising finding offers hope and optimism for individuals affected by a concussion. Additionally, cognitive rehabilitation, vestibular therapy, and other specialized therapies may prove beneficial for those experiencing persistent post-concussion symptoms.

The Role of Education and Awareness

Educating patients, families, and healthcare providers about the functional nature of concussions is not just crucial; it's empowering. This knowledge dispels misconceptions and promotes evidence-based management. It's vital to emphasize that the absence of structural damage on neuroimaging does not diminish the significance of concussion or its potential consequences.

By fostering a deeper understanding of the complex pathophysiology of concussion, we can facilitate a paradigm shift toward more personalized, targeted, and effective treatment strategies, ultimately improving outcomes for individuals affected by this standard and often misunderstood injury.

Referenced & Further Readings

1. Keating CE, Cullen DK. Mechanosensation in traumatic brain injury. Neurobiol Dis. 2021 Jan;148:105210. doi: 10.1016/j.nbd.2020.105210. Epub 2020 Nov 28. PMID: 33259894; PMCID: PMC7847277.

2. Master CL, Mayer AR, Quinn D, Grady MF. Concussion. Ann Intern Med. 2018 Jul 3;169(1):ITC1-ITC16. doi: 10.7326/AITC201807030. PMID: 29971425.

3. Mullally WJ. Concussion. Am J Med. 2017 Aug;130(8):885-892. doi: 10.1016/j.amjmed.2017.04.016. Epub 2017 May 11. PMID: 28502817.

4. Sharp DJ, Jenkins PO. Concussion is confusing us all. Pract Neurol. 2015 Jun;15(3):172-86. doi: 10.1136/practneurol-2015-001087. PMID: 25977270; PMCID: PMC4453625.

For Physical Therapists and Concussion Specialists:

In the world of concussion management, a paradigm shift is underway. The traditional dogma of prolonged rest following a concussion gradually gives way to a more proactive approach emphasizing early movement. This shift is rooted in historical observations and emerging …

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As physical therapists, we're accustomed to tackling complex conditions, but post-concussive Postural Orthostatic Tachycardia Syndrome (POTS) presents a unique set of challenges that often go unrecognized. This disorder, affecting the autonomic nervous system after a concussion, can significantly impact a patient's recovery and quality of life, underscoring the importance of our role in managing it.

Understanding the Intricacies of Post-Concussive POTS

POTS is a form of dysautonomia characterized by dysfunction of the autonomic nervous system, which regulates involuntary bodily functions like heart rate, blood pressure, and digestion. In post-concussive POTS, the concussion triggers this dysfunction, leading to a constellation of debilitating symptoms.

Key Symptoms

• Orthostatic Intolerance: The hallmark symptom, characterized by dizziness, lightheadedness, or fainting upon standing.

• Tachycardia: A significant increase in heart rate upon standing.

• Fatigue: Overwhelming fatigue that interferes with daily activities.

• Brain Fog: Difficulty concentrating, memory problems, and mental confusion.

• Headaches: Frequent and often debilitating headaches.

• Exercise Intolerance: Difficulty with physical activity due to fatigue, dizziness, and other symptoms.

The PT's Unique Role in Managing Post-Concussive POTSPhysical therapists are uniquely positioned to help patients with post-concussive POTS. Here's how:

1. Comprehensive Assessment: Thorough evaluation is critical. Use standardized questionnaires like the COMPASS-31, assess orthostatic vital signs, and conduct a detailed medical history review to identify POTS.

2. Patient Education: Educate patients about the condition, its symptoms, and the importance of lifestyle modifications. Empower them with self-management strategies like hydration, dietary changes, and activity pacing.

3. Therapeutic Exercise: Implement a graded exercise program starting with recumbent exercises and gradually progressing to upright activities. Focus on aerobic conditioning, strength training, and balance exercises.

4. Orthostatic Training: Employ tilt table training, progressive standing, and counter-maneuvers to improve orthostatic tolerance.

5. Manual Therapy and Modalities: For symptom management, utilize soft tissue mobilization, joint mobilization, heat/cold therapy, and compression garments.

6. Energy Conservation Techniques: Teach patients to prioritize activities, conserve energy, and pace themselves throughout the day.

A Multidisciplinary Approach

Post-concussive POTS often requires a multidisciplinary approach. To ensure comprehensive care, collaborate with physicians, neurologists, cardiologists, and occupational therapists.

The Importance of Recognizing and Treating Post-Concussive POTS

Untreated, post-concussive POTS can significantly impact a patient's recovery from concussion and overall quality of life. By recognizing the signs and symptoms and implementing appropriate interventions, physical therapists can make a meaningful difference in the lives of these patients.

If you suspect a patient may have post-concussive POTS, don't hesitate to refer them for further evaluation and treatment. Your expertise as a physical therapist can be a lifeline for individuals struggling with this often-overlooked condition.

Remember: Your proactive approach and early intervention are essential to the successful management of post-concussive POTS.

If you're grappling with the lingering effects of a concussion, you're not alone. Post-concussion syndrome (PCS) can be a frustrating roadblock, impacting everything from your thinking to your energy levels. But don't give up! Innovative therapies can ease your symptoms and guide you to your best self.

Two therapies showing real promise are:

• Manual Lymphatic Drainage (MLD): This specialized massage technique targets your lymphatic system, which plays a vital role in waste removal and reducing inflammation. By reducing swelling and boosting circulation, MLD can tackle those persistent headaches, dizziness, and brain fog often tied to PCS, offering a unique path to recovery.

• Microcurrent Point Stimulation (MPS): This therapy uses low-level electrical currents to stimulate specific points in the body. While it might sound unusual, these tiny currents can significantly impact pain relief, sleep quality, and cognitive function. MPS has also demonstrated its ability to help regulate the nervous system, which can become imbalanced after a concussion.

What can you expect?

Both MLD and MPS are non-invasive and typically painless. MLD sessions involve gentle hand movements, while MPS feels like a subtle tingling sensation. Your physical therapist will personalize the treatments to your needs and symptoms, ensuring comfort and optimal results.

Why choose these therapies?

• The natural approach: MLD and MPS work harmoniously with your body's natural healing processes, avoiding medications.

• Personalized treatment: Your physical therapist will create a tailored treatment plan that focuses on your unique symptoms and goals.

• Holistic focus: These therapies address the physical symptoms of taking a comprehensive approach to well-being, addressing both emotional and cognitive aspects taking a comprehensive approach t

Take the next step:

If you're curious about incorporating MLD and MPS into your post-concussion recovery, talk to your physical therapist. They will assess your needs and determine whether these therapies fit you well.

Remember, healing from a concussion requires time and patience. But with the proper support and treatment, you can reclaim your vitality and feel like yourself again.

Important note: This blog post is for informational purposes only and should not replace medical advice. Always consult with your healthcare provider before starting any new treatment.