A traumatic brain injury is damage to the brain caused by an external force, such as a fall, car crash, sporting collision, assault, or being struck by an object. It can range from a mild traumatic brain injury (often called a concussion) through to moderate and severe injuries that cause bleeding, swelling, and significant changes in consciousness.
After a traumatic brain injury, symptoms are not just “in the head”. The brain controls balance, vision, movement, energy levels, sleep, mood, and thinking speed, so changes can show up across the whole body and day-to-day life. Some people feel “foggy and tired”, while others feel dizzy, unsteady, sensitive to light, or struggle to multitask, work, or study.
Key Facts
- In Australia in 2020–21, head injuries resulted in about 406,000 emergency department presentations, 142,000 hospitalisations, and 2,400 deaths, and someone was hospitalised for a head injury every four minutes. 🔗
- Globally, an estimated 69 million people sustain a traumatic brain injury each year (all causes, all severities). 🔗
- Mild traumatic brain injury symptoms usually resolve within 3 months, however 5% to 15% of people have longer-lasting symptoms. 🔗
- Across studies, approximately 10% to 20% of people with mild traumatic brain injury experience persistent post-concussion symptoms. 🔗
Risk Factors
- Previous concussion or traumatic brain injury (especially if recovery was prolonged)
- High-risk sport participation (contact and collision sports)
- Falls risk
- Alcohol and substance use
- Poor sleep, high stress load, or untreated anxiety/depression
- Neck pain or whiplash features after the injury
Symptoms
- Headache or “pressure” in the head
- Dizziness, vertigo, nausea, or motion sensitivity
- Unsteadiness, balance problems, or feeling “wobbly”
- Blurred vision, difficulty focusing, or eye strain
- Sensitivity to light or noise
- Neck pain or stiffness (very common after falls and whiplash-type mechanisms)
- Memory or concentration difficulties (especially multitasking)
Aggravating Factors
- Screens, scrolling, reading, or prolonged computer work
- Busy environments
- Rapid head movements, bending, or turning in bed (vestibular triggers)
- Exercise that spikes heart rate too fast or for too long
- Poor sleep, long days, or “pushing through” fatigue without breaks
Causes
Traumatic brain injury happens when forces on the head and body cause the brain to move within the skull and/or cause direct damage to brain tissue. Common mechanisms include:
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Falls
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Motor vehicle crashes
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Sporting impacts (tackles, collisions, falls, or being hit by a ball).
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Assault or blunt trauma.
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Workplace injuries (falls from height, struck-by incidents).
A mild traumatic brain injury (concussion) may occur even when scans are normal. Symptoms can come from a mix of factors including temporary changes in brain function, vestibular disturbance (inner ear and balance pathways), neck injury, visual system strain, and altered autonomic regulation (how your body controls heart rate, blood pressure, and stress responses).
Moderate to severe injuries may involve bleeding (for example subdural or epidural haematoma), bruising of brain tissue (contusion), swelling, and raised pressure inside the skull. These situations are medical emergencies and are managed in hospital, often with neurosurgical involvement.
How Is It Diagnosed?
Diagnosis is based on the injury history and your symptoms, plus a focused neurological and physical examination. A clinician will usually ask:
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What happened (mechanism, speed/force, direct hit, fall, whiplash)?
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Any loss of consciousness, confusion, memory gaps, or feeling “stunned”?
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How symptoms evolved over the first hours and days.
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Red flags that suggest more serious injury.
A physiotherapist can contribute strongly to diagnosis by assessing movement and function, including:
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Balance testing, walking, and coordination
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Vestibular assessment (dizziness and eye-head coordination)
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Neck assessment (range of motion, headache patterns, cervicogenic dizziness features)
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Exercise tolerance testing (safe, graded assessment of symptom response)
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Functional impact (work tasks, study tolerance, sport demands, daily routines)
Traumatic brain injury rehab works best when the diagnosis includes the main drivers of your symptoms (for example vestibular, neck, visual, fatigue/autonomic, mood/sleep). This helps target physiotherapy for traumatic brain injury rather than relying on generic advice.
Investigations & Imaging
- CT brain
- Detects bleeding, skull fracture, swelling, and other acute injuries that may require urgent medical or neurosurgical care. Often first-line in emergency settings.
- MRI brain
- May detect contusions, small bleeds, diffuse axonal injury changes, or other structural findings not seen on CT. Also helps rule out other causes when symptoms persist or the presentation is atypical.
- Cervical spine imaging (X-ray, CT, or MRI neck, if indicated)
- Assesses for fracture, instability, or significant soft tissue injury when neck pain is severe, there are neurological signs, or trauma mechanism is concerning.
- Vestibular and oculomotor screening
- Identifies vestibular hypofunction, benign positional vertigo, convergence insufficiency, or visual tracking problems that can respond well to targeted vestibular and vision-based rehab.
Grading / Classification
- Mild traumatic brain injury (concussion)
- Glasgow Coma Scale 13–15 and typically brief or no loss of consciousness. Symptoms may include headache, dizziness, fogginess, fatigue, and sensitivity to light/noise. Imaging is often normal.
- Moderate traumatic brain injury
- Glasgow Coma Scale 9–12 and/or longer loss of consciousness and post-traumatic amnesia. Higher risk of structural injury and ongoing functional impairment. Often requires inpatient rehabilitation.
- Severe traumatic brain injury
- Glasgow Coma Scale 3–8 and/or prolonged unconsciousness, significant imaging findings, and high risk of complications (raised intracranial pressure, seizures, long-term disability). Requires intensive acute management and structured neurorehabilitation.
Physiotherapy Management
Exercise
Traumatic brain injury physiotherapy exercises usually start with the principle of “do enough to recover, not so much that you crash”. For mild traumatic brain injury, physiotherapists commonly prescribe graded aerobic exercise (for example walking, stationary bike) based on your symptom response. The goal is to improve exercise tolerance and reduce symptom flare-ups by gently retraining your nervous system’s capacity. Your physio will often set a starting intensity that keeps symptoms stable (or only mildly increased) and then progress duration and intensity over days to weeks.
For moderate to severe injuries, exercise may begin with basic activation and mobility (bed mobility, sitting balance, transfers), then progress to strengthening, walking re-education, stair practice, and community-based conditioning. A neuro physiotherapist will also work on coordination, dual-task ability (moving while thinking), and safe participation in daily life.
If dizziness or visual symptoms are prominent, physiotherapy for traumatic brain injury often includes vestibular rehabilitation, such as gaze stabilisation drills (training eye-head coordination), balance progressions, and graded exposure to motion sensitivity. These exercises are carefully dosed because overloading the system can temporarily increase symptoms.
Activity Modification
A big part of traumatic brain injury rehab is learning how to pace physical and cognitive load. A physiotherapist can help you map out your day to avoid the boom-bust cycle: doing too much on “good days” then crashing for days after. Strategies might include:
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Planned micro-breaks before symptoms spike
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Splitting tasks (for example, two shorter walks rather than one long walk)
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Temporarily reducing high-trigger activities (driving at night, crowded environments) while building capacity with graded exposure
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Stepwise return-to-work or return-to-study planning aligned with symptom stability and endurance
In sport-related concussion, your physio can guide a staged return to training, then contact, then competition, while also treating neck, vestibular, and balance issues that can increase re-injury risk.
Manual Therapy
Manual therapy can be helpful when neck involvement is driving symptoms, which is common after falls, tackles, and whiplash mechanisms. In traumatic brain injury physiotherapy, manual therapy is typically used to reduce neck pain, restore range of motion, and settle cervicogenic headache patterns. This matters because neck pain can amplify dizziness, disrupt sleep, and reduce your tolerance for rehab exercise. Manual therapy is usually paired with active neck and shoulder exercises so improvements carry over into daily activity.
Postural Retraining
After traumatic brain injury, people often adopt protective postures: stiff neck, rounded shoulders, guarded movement, and reduced head turns. This can maintain headaches, dizziness, and visual strain. Physiotherapists work on comfortable upright posture, thoracic mobility, breathing patterns, and confident head movement. Postural retraining is especially relevant for screen-based work because sustained forward head posture can aggravate both neck pain and “eye fatigue” symptoms.
Dry Needling
Dry needling may be considered in traumatic brain injury rehab when there is clear muscular contribution to symptoms, such as upper neck and jaw muscle tension driving headaches. It is not a primary treatment for concussion itself, and it should only be used when it supports progress with active rehabilitation (for example, improved neck range allowing vestibular exercises).
Education
Education is one of the most valuable parts of physiotherapy for traumatic brain injury. Key education areas often include:
- Red flag symptoms that need urgent medical review (worsening headache, repeated vomiting, increasing drowsiness, seizures, new weakness/numbness, escalating confusion)
- What “normal” recovery can look like (including symptom variability)
- How to pace activity and return to work/study safely
- Managing symptom triggers without avoiding everything (graded exposure rather than fear-based restriction)
- Planning return to driving and sport in a safety-focused way
Other
Depending on findings, traumatic brain injury rehab may include:
- Balance aids and falls-prevention strategies
- Community reconditioning programs for long-term deconditioning
- Coordination with occupational therapy for cognitive pacing and workplace modifications
- Collaboration with optometry or vestibular specialists for complex visual-vestibular issues
- Respiratory physiotherapy and early mobilisation in hospital for moderate to severe injuries
Other Treatments
Traumatic brain injury rehab is often multidisciplinary. Depending on symptoms and injury severity, other treatments may include:
- Occupational therapy for cognitive pacing, return-to-work planning, driving readiness, and daily activity strategies
- Speech pathology for communication, swallowing, and higher-level cognitive-communication skills
- Neuropsychology or psychology for mood, anxiety, trauma responses, adjustment, and strategies for attention and memory
- Medical management for headache, sleep disturbance, nausea, mood symptoms, and seizures when relevant
- Vision care (optometry/ophthalmology) for convergence problems, accommodative issues, or visual tracking deficits
- Social work and rehabilitation services to support return to community roles and access to funding/services where appropriate
Physiotherapists commonly coordinate with these providers so physical loading, fatigue management, and return-to-activity decisions align across the whole rehab plan.
Surgery
Surgery is not required for most mild traumatic brain injuries. When surgery is needed, it is usually due to complications such as bleeding, swelling, skull fracture with depression, or dangerously raised intracranial pressure. Common neurosurgical procedures may include evacuation of a haematoma (for example subdural or epidural), repair of certain skull fractures, insertion of monitoring devices, or decompressive surgery in severe cases.
Physiotherapy for traumatic brain injury remains important before and after neurosurgery. In hospital, physiotherapists focus on respiratory care, positioning, pressure area prevention, early mobilisation when safe, and maintaining joint range of motion. As medical stability improves, the focus shifts to retraining sitting balance, standing, walking, strength, and functional tasks, with close monitoring of fatigue and neurological signs.
Prognosis & Return to Activity
Recovery after traumatic brain injury depends on injury severity, symptom drivers, previous concussion history, sleep quality, mental health, and how well activity is graded. Many people with mild traumatic brain injury improve substantially over days to weeks, but a meaningful subgroup has symptoms that persist beyond a month and may require structured rehabilitation.
A practical physiotherapy approach to return to activity usually includes:
- Stabilising sleep and daily routine first
- Building a baseline of symptom-stable daily activity (walking, light chores, short outings)
- Progressing exercise tolerance in a planned way (duration, then intensity)
- Adding complexity only when ready (busy environments, driving, sport drills, workplace load)
- Using objective functional goals (walk duration, screen time tolerance, balance measures) rather than relying only on “how you feel today”
Return to sport after concussion should be staged and symptom-guided, with medical clearance where required. A physiotherapist can also address neck control, balance, and reaction time factors that may reduce risk of repeat injury when you return.
Complications
- Persistent post-concussion symptoms (headache, dizziness, fatigue, brain fog, mood changes)
- Neck-related headache or dizziness persisting due to untreated cervical injury
- Benign paroxysmal positional vertigo
- Falls risk due to balance deficits
- Reduced fitness and deconditioning from prolonged rest and activity avoidance
- Work or school disruption and reduced participation in normal life roles
- Mood disturbance (anxiety, depression) or fear of symptoms that limits activity progression
Preventing Recurrence
- Follow a staged return-to-sport plan after concussion, guided by a physiotherapist, to reduce the chance of returning while balance, neck control, or reaction time is still impaired.
- Address fall risks after traumatic brain injury rehab: practise balance and strength work (especially legs), review footwear, improve home lighting, and reduce trip hazards so you are less likely to sustain another head injury.
- Use sport-specific protective strategies (for example technique coaching, neck strengthening, and rule adherence) and wear appropriate helmets for cycling, skating, and high-risk activities to reduce head injury severity.
When to See a Physio
- You have dizziness, balance issues, or nausea after a traumatic brain injury, especially if turning your head or moving in busy environments triggers symptoms.
- Headaches persist beyond the first 1 to 2 weeks, or headaches feel linked to neck stiffness, posture, or sustained screen time.
- Exercise consistently flares symptoms and you are unsure how to restart activity safely. A physio can prescribe graded aerobic work as part of physiotherapy for traumatic brain injury.
- You feel unsteady walking, have had near-falls, or you have lost confidence with stairs, uneven ground, or sport.
- You need a structured return-to-work, return-to-study, or return-to-sport plan, including objective milestones and load management
- Symptoms are lingering beyond 2 to 4 weeks, or you feel stuck in a boom-bust cycle despite trying to “take it easy”.