Concussion Rehabilitation: Why Recovery Is About More Than Rest
For years, concussion advice often sounded something like this:
“Go home, rest in a dark room, avoid activity, and wait until you feel better.”
We now know that concussion recovery is more nuanced than that.
Rest still has a role—particularly immediately after the injury—but prolonged strict physical and cognitive rest is no longer considered the best approach for most people with a sport-related concussion.
Instead, modern concussion management focuses on relative rest early, appropriate return to daily activity, progressive exercise, identification of the systems contributing to symptoms, and an individualized return to school and sport.
The 2022 International Consensus Statement on Concussion in Sport specifically recommends against strict rest until all symptoms disappear. It supports relative rest during approximately the first 24–48 hours, followed by a gradual return to tolerated physical and cognitive activity. The consensus also recognizes aerobic exercise and targeted rehabilitation as important components of concussion treatment.
In other words:
A concussion is an injury we can evaluate, treat, rehabilitate, and progressively recover from.
What Is a Concussion?
A sport-related concussion is a traumatic brain injury that can occur after a direct blow to the head, neck, or body that transmits force to the brain.
An athlete does not have to lose consciousness to sustain a concussion.
Symptoms can begin immediately or develop over minutes or hours, and the presentation can vary significantly from one person to another.
Common symptoms may include:
Headache
Dizziness
Balance difficulty
Nausea
Sensitivity to light or noise
Vision problems
Feeling foggy or slowed down
Difficulty concentrating or remembering
Fatigue
Sleep disturbances
Irritability, anxiety, or emotional changes
That variability is important.
Two athletes may both receive the diagnosis of concussion while experiencing very different problems during recovery.
And that means their rehabilitation may need to look very different too.
One Diagnosis Can Affect Multiple Systems
One of the biggest misconceptions about concussion rehabilitation is that treatment simply involves monitoring symptoms until they disappear.
Symptoms are important—but they are only part of the picture.
Someone reporting a headache after a concussion might have several different contributing factors.
For one athlete, the headache may increase primarily with cardiovascular exertion.
Another may experience symptoms with rapid eye movements or visually busy environments.
Another may have significant cervical spine involvement following the mechanism of injury.
Someone else may struggle primarily with vestibular function, balance, concentration, sleep, or a combination of several factors.
That is why a comprehensive concussion evaluation may examine multiple areas, including:
Symptoms
What symptoms are present?
When do they occur?
What activities make them better or worse?
How are symptoms changing over time?
Cervical Spine
The forces capable of producing a concussion can also affect the neck.
Cervical dysfunction can contribute to headache, neck pain, dizziness, and other symptoms that may overlap with those commonly associated with concussion.
Vestibular Function
The vestibular system helps the brain understand movement and maintain balance and spatial orientation.
Problems within this system may contribute to:
Dizziness
Motion sensitivity
Balance difficulty
Difficulty tolerating busy visual environments
Oculomotor Function
A concussion can also affect how the eyes and brain work together.
Evaluation may examine tasks such as:
Smooth pursuit
Rapid eye movements
Near-point convergence
Vestibulo-ocular reflex activities
Visual motion sensitivity
The Vestibular/Ocular Motor Screening examination, or VOMS, is one tool that can contribute useful information about vestibular and ocular symptoms after concussion, but—like other concussion tests—it is best considered as one component of a broader assessment rather than a stand-alone answer.
Balance and Movement
Static balance, dynamic balance, walking, dual-task activities, and other movement challenges can help reveal difficulties that may not be obvious while someone is simply sitting in an examination room.
Exercise Tolerance
Some individuals feel relatively normal at rest but develop symptoms as heart rate and physical demand increase.
Understanding how someone responds to exertion can help guide exercise prescription and progression.
Cognitive and Daily Demands
For a student-athlete, recovery also means being able to tolerate:
Reading
Screens
Classroom environments
Homework
Testing
Concentration
A full school day
Eventually, the athlete must also tolerate the physical and cognitive demands of their sport.
This is why there is no single test that determines whether someone has recovered from a concussion.
Current consensus recommends using multiple clinical findings together and specifically cautions against using computerized neurocognitive testing by itself to diagnose or manage concussion.
What Happened to the Dark Room?
Immediately following a suspected concussion, removing the athlete from play and protecting them from another injury remains extremely important.
But protection does not mean complete isolation.
Current recommendations support relative rest rather than strict rest during approximately the first 24–48 hours.
Relative rest can still include normal activities of daily living and light activity that does not meaningfully aggravate symptoms.
Walking, for example, may be appropriate early in recovery.
Screen time and cognitively demanding activities may temporarily need to be reduced, especially during the first couple of days, but the goal is not to completely eliminate all stimulation until symptoms are gone.
This represents a significant change from older concussion-management strategies.
The question becomes less:
“Can you avoid doing anything that causes symptoms?”
and more:
“What level of activity can you currently tolerate, and how can we appropriately progress from there?”
Exercise Can Be Part of Concussion Treatment
One of the most important developments in concussion rehabilitation has been the use of appropriately prescribed aerobic exercise.
Exercise is no longer viewed only as something that happens at the end of recovery.
For appropriately evaluated patients, it may actually be part of the treatment.
Current international recommendations support early return to physical activity after the initial 24–48 hours and allow clinicians with appropriate exercise-testing capabilities to prescribe individualized sub-symptom-threshold aerobic exercise within the first several days following a sport-related concussion.
That does not mean:
“Push through whatever symptoms occur.”
It means finding an appropriate training dose.
For example, an athlete may complete a structured exercise assessment to determine how increasing cardiovascular demand affects symptoms.
The findings can then help establish an appropriate exercise intensity.
The athlete might begin with:
Walking
Stationary cycling
Treadmill exercise
Another controlled form of aerobic activity
The intensity and duration can then be gradually progressed as tolerance improves.
A randomized clinical trial involving adolescent athletes found that individualized sub-symptom aerobic exercise initiated during the acute phase of sport-related concussion accelerated recovery compared with a stretching program.
A subsequent randomized controlled trial also supported early targeted heart-rate aerobic exercise in adolescents recovering from sport-related concussion.
The important takeaway is:
Exercise after concussion should be dosed—not simply avoided.
Do You Have to Be Completely Symptom-Free Before Exercising?
Not necessarily.
This is another important distinction.
Current concussion guidelines allow a mild and brief increase in symptoms during appropriately prescribed activity.
The Amsterdam consensus describes mild symptom exacerbation as an increase of no more than approximately two points on a 0–10 symptom scale that resolves within less than an hour.
If symptoms increase substantially or remain elevated, however, the activity may have exceeded the person's current tolerance and should be modified.
This gives us a useful rehabilitation principle:
Symptoms can help guide the dose rather than automatically stopping all activity.
That does not apply to activities that place someone at risk for another head impact, collision, or fall. Those activities require a much higher level of recovery and appropriate medical clearance.
Sometimes the Problem Requires More Than Aerobic Exercise
Concussion rehabilitation should reflect the findings of the evaluation.
If someone demonstrates significant vestibular deficits, vestibular rehabilitation may be appropriate.
If cervical dysfunction appears to contribute to headache, dizziness, or neck pain, cervical rehabilitation may be necessary.
When both are present, treatment may address both systems.
The international concussion consensus recommends cervicovestibular rehabilitation when dizziness, neck pain, or headaches persist beyond approximately 10 days and notes that vestibular or cervicovestibular rehabilitation may benefit individuals with dizziness or balance problems.
There is also clinical-trial evidence supporting this approach.
A randomized controlled trial of young people with persistent dizziness, neck pain, and/or headaches after sport-related concussion found that individuals receiving cervical spine and vestibular rehabilitation were more likely to achieve medical clearance within the study period than those receiving the comparison intervention.
Depending on the individual, rehabilitation might therefore include:
Cervical mobility and strengthening
Vestibular exercises
Gaze-stabilization exercises
Balance training
Eye-movement exercises
Aerobic conditioning
Progressive movement and head-motion exposure
Dual-task activities
Sport-specific exercise
The specific combination should come from the athlete's presentation—not from giving everyone with a concussion the same exercise sheet.
Return to Learn Is Part of Rehabilitation
For student-athletes, recovering from concussion is about more than returning to the field.
They also need to return to the classroom.
Fortunately, most student-athletes can gradually return to learning relatively quickly. The Amsterdam consensus reported that approximately 93% of athletes across ages had fully returned to learning without additional academic support by 10 days. However, some students require temporary adjustments based on their symptoms and tolerance.
Those modifications might include:
Shortened school days
Rest breaks
Reduced screen exposure
Additional time for assignments
Adjusted testing
Preprinted class notes
Temporary reduction in cognitive workload
The objective is not to keep the student completely out of school until every symptom disappears.
It is to modify the demands enough that the student can progressively resume normal learning.
The CDC also notes that getting students back to school following concussion can support recovery rather than unnecessarily prolonging complete absence.
Return to learn and return to sport can progress alongside each other, but student-athletes should generally be successfully back to their normal learning activities before completing unrestricted return to sport.
Return to Sport Should Also Be Progressive
This connects directly with something we emphasize throughout sports rehabilitation:
Return to sport should not be an all-or-nothing event.
An athlete should not go from sitting at home one day to unrestricted competition the next simply because the headache disappeared.
Return after concussion should progressively rebuild cardiovascular, movement, cognitive, and sport-specific demands.
A typical progression moves through stages such as:
1. Return to Regular Daily Activities
The athlete resumes school and normal daily activities as tolerated.
2. Light Aerobic Exercise
Walking, light jogging, or stationary cycling begins to increase cardiovascular demand.
3. Moderate Exercise
Intensity increases and may include more body and head movement and moderate resistance training.
4. Heavy Non-Contact Activity
The athlete progresses toward higher-intensity conditioning, sprinting, regular strength training, and non-contact sport-specific activity.
5. Full Practice and Contact
When medically appropriate, the athlete resumes normal practice and contact.
6. Competition
The athlete returns to unrestricted competition.
The CDC's current return-to-sport progression follows this general six-step structure, with each step typically taking at least 24 hours and advancement dependent on the athlete's response.
Importantly, later stages that introduce risk of head impact, collision, or falling should occur only after appropriate healthcare-provider authorization and resolution of concussion-related symptoms and clinical abnormalities, including with exertion.
What If Symptoms Are Not Improving?
Recovery timelines vary.
Many people improve within days to a few weeks, while others experience a longer recovery.
The international consensus recommends additional multimodal evaluation and consideration of rehabilitation when symptoms persist, worsen, or are not progressively resolving within approximately two to four weeks.
But you do not necessarily have to wait four weeks before seeking rehabilitation.
Earlier assessment may identify treatable problems such as:
Exercise intolerance
Cervical dysfunction
Vestibular dysfunction
Balance deficits
Oculomotor problems
The appropriate timing and treatment depend on the individual.
Concussion Care Is a Team Sport
Concussion management often works best when communication occurs across the athlete's entire care team.
Depending on the athlete, that may include:
Physician
Sports medicine physician
Physical therapist
Athletic trainer
School nurse
Teachers
Coaches
Strength and conditioning staff
Parents or guardians
The athlete
Each person sees a different part of the athlete's recovery.
A student might tolerate a 20-minute bike session but struggle through a full day of school.
An athlete may perform well during controlled rehabilitation but develop symptoms when visual and decision-making demands increase at practice.
An athletic trainer may see things during the school and practice day that never appear during a clinic appointment.
Those pieces of information help guide the next step.
When Is a Head Injury an Emergency?
A suspected concussion should be appropriately evaluated, and certain symptoms require immediate emergency medical attention.
Following a blow to the head or body, the CDC recommends calling 911 or going to the emergency department for danger signs such as:
A worsening headache that does not go away
Repeated vomiting
Seizures or convulsions
Increasing confusion, agitation, or unusual behavior
Slurred speech
Weakness, numbness, or decreased coordination
One pupil becoming larger than the other
Significant drowsiness, inability to wake, or inability to stay awake
Loss of consciousness with concerning deterioration
These findings may indicate a more serious brain injury and should not be treated as routine concussion symptoms.
The Bigger Picture: Concussion Is Treatable
Perhaps the most important message for athletes and parents is this:
Concussion recovery does not have to consist of simply waiting.
Early relative rest has a role.
So does gradually returning to normal life.
For the right person, aerobic exercise may be treatment.
Cervical or vestibular rehabilitation may be treatment.
Return-to-learn strategies may be treatment.
And progressive exposure back to the physical, cognitive, visual, and reactive demands of sport is part of rehabilitation too.
At Ignite Performance Physical Therapy, our approach is to identify what is limiting the athlete and use that information to help guide an individualized recovery.
That may mean evaluating:
Symptoms → Cervical Spine → Vestibular/Ocular Function → Balance → Exercise Tolerance → Sport Demands
Then progressively rebuilding what is missing.
Because the goal isn't simply to get an athlete to say:
“My headache is gone.”
The goal is to help them successfully return to:
School. Training. Practice. Sport. Performance.
Concussion is an injury.
And like other sports injuries, it deserves a thoughtful, progressive rehabilitation plan.
🔥 Ignite Your Recovery. Elevate Your Performance.