Rethinking Concussion Recovery: The Case for Active Rehabilitation.

Concussions are more than just a bump on the head, or “getting your bell rung”; they are a type of mild traumatic brain injury that can have serious, long-lasting effects if not properly managed. They are caused by sports injuries, motor vehicle accidents, falls, or any blow to the head, neck, or body that creates movement of the brain inside the skull. Historically, the only recommendation for treatment that was offered was simply “rest and wait.” It was believed that concussion was not a treatable injury, and patients were advised that the best way to heal was to avoid cognitive and physical activities until symptoms resolved. 

However, it turns out that physical activities and regular exercise not only help people with head injuries heal more quickly but also more completely. Gone are the days when ‘taking it easy’ or staying in a dark room was the only option for recovery. Today, concussion experts advocate for early, active treatment to enhance healing and minimize the potential for long-term complications like post-concussion syndrome (or persistent post-concussion symptoms).

In this comprehensive post, we’ll explore the transition from the old paradigm of ‘rest and wait’ to the progressive world of active rehab. We’ll analyze current research, highlight the benefits of this approach, and provide a roadmap for its implementation. We’ll also look at the critical role stakeholders play in ensuring a safe and effective return to everyday life — school, work, and sports.


The Old School vs. The New Cool: Understanding the Paradigm Shift.

For many years, the “cocoon therapy” approach (i.e., avoidance of physical and cognitive activities) was universally given as safe advice for healing after a head injury. However, as the harm that prolonged inactivity has on physical and mental health became more evident, medical experts started to re-evaluate this one-size-fits-all approach. Many studies suggest that long periods of rest can be detrimental to healing and delay concussion recovery for patients.[1] And a growing body of evidence suggests that certain types of exercise may speed up recovery rather than worsen symptoms. [2] This new thinking does not advocate for an immediate return to full-contact sport. Still, it does encourage a graduated, progressive increase in physical activity tailored to an individual’s head injury symptoms.


The Science Speaks: Research Supporting Active Rehabilitation.

The 6th International Consensus Statement on Concussion in Sport states that “strong evidence exists regarding the benefits of physical activity and aerobic exercise treatment as early interventions.” [3] Studies led by Dr. John Leddy and his colleagues from the University at Buffalo illustrate how sub-threshold aerobic training programs are beneficial for promoting recovery without exacerbating symptoms.[4] A 2023 study published in the Journal of Athletic Training also showed that engaging in aerobic exercise during recovery from a concussion can improve brain function and decrease symptoms [5], further supporting the shift towards active rehabilitation.

Snowden T, Morrison J, Boerstra M, Eyolfson E, Acosta C, Grafe E, Reid H, Brand J, Galati M, Gargaro J, Christie BR. Brain changes: aerobic exercise for traumatic brain injury rehabilitation. Front Hum Neurosci. 2023 Dec 20;17:1307507. doi: 10.3389/fnhum.2023.1307507. PMID: 38188504; PMCID: PMC10771390.

This updated approach addresses three fundamental aspects: symptom management, physical restoration, and cognitive recovery.

Active rehab benefits individuals by:

  •       Reducing the risk of secondary symptoms, such as depression and anxiety
  •       Facilitating a faster physical recovery by preventing deconditioning
  •       Supporting a quicker return to school and work by maintaining cognitive function


Additional Benefits of Active Rehabilitation.

In addition to accelerating recovery, active rehabilitation offers an array of benefits. Physical activity helps people to cope with stress, build resilience, and lessen the risk of developing persistent post-concussion symptoms (also referred to as ‘post-concussion syndrome’). Furthermore, exercise can improve cognitive function, including memory and attention — skills often affected by concussion. Depression, anxiety, and mood changes– both pre-injury and post-injury– can also be improved with regular physical activity. Exercise can also help mitigate sleep disturbances that often occur post-concussion. [6]


The Roadmap for Active Rehabilitation.

Active rehabilitation isn’t a one-size-fits-all solution, and it should be tailored to each individual’s specific needs. The first step towards active recovery is an accurate diagnosis of the concussion by a qualified healthcare professional. This will help identify any potential risk factors or underlying conditions that may affect treatment recommendations. Many experts agree that symptom origins can be grouped into one or more categories:  Physiologic (which can include Autonomic and/or Metabolic sub-profiles), Visual/Vestibular, Cervical, and Psychological. Not only can this help patients understand the nature of their symptoms, it also aids concussion management specialists in targeting therapies more specifically. For instance, if there is a whiplash-like neck injury, addressing neck pain will be important as physical activities are designed.

Leddy JJ, Haider MN, Noble JM, Rieger B, Flanagan S, McPherson JI, Shubin-Stein K, Saleem GT, Corsaro L, Willer B. Management of Concussion and Persistent Post-Concussive Symptoms for Neurologists. Curr Neurol Neurosci Rep. 2021 Nov 24;21(12):72. doi: 10.1007/s11910-021-01160-9. PMID: 34817719.

Next, a personalized treatment plan should be developed in collaboration with the patient, their family, and medical providers. This plan should incorporate a balance of physical and cognitive activities that gradually increase in intensity as symptoms improve. Individuals are guided through a progressive increase in physical and cognitive activities that challenge — but do not overwhelm — the concussed brain. It’s important to note that each person may progress at a different pace, and it’s essential to listen to the body and adjust accordingly.

Throughout the recovery process, ongoing monitoring and communication with the healthcare professional team is crucial to ensure that progress is being made safely and effectively. This may involve regular check-ins, assessments, or modifications to the treatment plan as needed. Implementing an active rehabilitation program requires close collaboration between the individual, their medical provider, and, if relevant, their sports team or workplace.


Guidelines for Post-Concussion Active Rehab.

Now that we have established that activity is better than strict rest after a concussion, how is this best achieved? Just like Goldilocks, too little exercise can be as much of a problem as too much. Knowing the right amount and timing leads to the best outcomes.

  1. Relative rest— not complete rest– is recommended in the first 24-48 hrs after a head injury. Light physical activity, such as walking, and regular activities of daily living are safe as long as it doesn’t exacerbate symptoms. Reduced screen time in the first two days after injury is helpful, but research states that it may not be effective beyond that. [7, 8]
  2. After 24–48 hours, physical activity like walking or riding a stationary bike can continue – while continuing to avoid the risk of contact, collision, or fall.
  3. Exercise intensity can be gradually increased based on symptoms. Sub-symptom threshold aerobic exercise should not cause more than a mild symptom increase (e.g.,‘ mild ‘= testing stops with an increase of more than two points on a 0–10 point scale when compared with the pre-exercise resting value). This type of mild symptom flaring is normal and does not slow recovery.
  4. Physical exercise should be stopped if… worsening symptoms equal more than “mild and brief” (i.e., mild & brief = an increase of 1-2pts for less than 1 hour) and may be resumed once symptoms have returned to the prior level.

Similar symptom-limited, gradual progression also applies to cognitive activity, and the above guidelines are recommended for academic and work-related activities. For instance, light reading or short, timed computer work can progress to longer and more difficult cognitive activities, such as tests or projects. It is recommended to take regular breaks for mental rest between tasks and limit activities that worsen symptoms like headache or difficulty concentrating.


What to Avoid in Active Rehabilitation.

While actively rehabilitating a concussion, certain activities should be avoided to prevent setbacks.

These include:

  • High-Impact and Contact Sports: Any activity that could result in further injury should be strictly off-limits until your concussion management specialist has determined it is safe to return.
  • Cognitive Overexertion: Excessive mental strain could make symptoms worse and delay recovery. Note that this delay is not related to further damage or worsening of brain function, it’s simply due to your flare prolonging your time with symptoms. This is why It’s important to strike a balance between cognitive challenges and rest.
  • Progressing too quickly: As someone starts to feel better, there is the risk of inadvertently doing too much too soon. It is up to the concussion specialist to set clear parameters and ensure that the patient stays within those prescribed boundaries.


The Role of Stakeholders.

In addition to the healthcare team, many stakeholders are involved in ensuring concussion-supportive therapy. These include educators, employers, coaches, and family members. All of these individuals should be educated on the importance of active rehabilitation and how to support those recovering from a concussion.

Furthermore, policies and guidelines should be in place to ensure that concussed individuals are given adequate time to recover before returning to full school or work responsibilities. Employers and educators should be aware of tailored schedules and accommodations that may be necessary for a successful return, including reduced workload or modified duties.


Return to Sports.

Engaging in sports after a concussion requires a well-structured reintegration process. Athletes, coaches, and healthcare professionals should work together to design a stepwise return-to-play protocol to assist an athlete in gradually returning to competitive sports.

The return-to-play process involves six stages, each with increasing physical exertion and contact levels. Athletes must not proceed to the next stage if they experience symptoms during any level of exercise. Graduated return-to-play protocols vary by location but generally agree that this approach ensures that the athlete has fully recovered before returning to competition.

Criteria for Full Recovery

Before returning to play, athletes must be entirely symptom-free at rest, during, and following physical exertion. They should also be off all medications used to treat concussion symptoms, have normal balance and neurocognitive function, and have returned to their pre-injury baseline on all physical exertion tests. The healthcare professional may want to complete a final neurological exam to ensure the brain has fully recovered before final clearance to return to sport is issued.


Conclusion.

In conclusion, the shift towards active rehabilitation is an exciting development in the field of concussion care. By challenging the status quo of ‘rest and wait’ and introducing individualized, active strategies, we have the opportunity to redefine what recovery means for those affected by concussions. It’s imperative that all stakeholders — from the healthcare professional to the teacher, the employer, or the coach — take an active role in promoting and implementing these innovative approaches. Together, we can ensure a safer, more efficient, and comprehensive recovery process for all individuals dealing with the complexities of concussion.


REFERENCES
  1. Herring S, Kibler WB, Putukian M, et alSelected issues in sport-related concussion (SRC|mild traumatic brain injury) for the team physician: a consensus statementBritish Journal of Sports Medicine 2021;55:1251-1261.
  2. Leddy JJ, Burma JS, Toomey CM, et al. Rest and exercise early after sport- related concussion: a systematic review and meta- analysis. Br J Sports Med 2023:bjsports- 2022- 106676.
  3. Patricios JS, Schneider KJ, Dvorak J, et alConsensus statement on concussion in sport: the 6th International Conference on Concussion in Sport–Amsterdam, October 2022British Journal of Sports Medicine 2023;57:695-711.
  4. Wilber, C. G., Leddy, J. J., Bezherano, I., Bromley, L., Edwards, A. E., Willer, B. S., & Haider, M. N. (2021, April). Rehabilitation of concussion and persistent postconcussive symptoms. In Seminars in neurology (Vol. 41, No. 02, pp. 124-131).
  5. Callahan CE, Stoner L, Zieff GH, Register-Mihalik JK; The Additive Benefits of Aerobic Exercise and Cognitive Training Postconcussion: Current Clinical Concepts. J Athl Train 1 July 2023; 58 (7-8): 602–610.
  6. Howell D, Wingerson M, Smulligan K, et al4.5 Adolescents with concussion who exercise more than 150 minutes/week demonstrate sleep quality improvements British Journal of Sports Medicine 2024;58:A98.
  7. Macnow T, Curran T, Tolliday C, et al. Effect of screen time on recovery from concussion: a randomized clinical trial. JAMA Pediatr 2021;175:1124–31. 32
  8. Cairncross M, Yeates KO, Tang K, et al. Early postinjury screen time and concussion recovery. Pediatrics 2022;150:e2022056835.