Reasonable Restrictions for Mild Concussion Symptoms
Avoid strict rest and high-intensity physical activity, but do not impose complete cognitive or physical restrictions—instead, allow symptom-limited activity with gradual return to normal activities of daily living as tolerated. 1
Key Management Principle: Avoid Strict Rest
The most important evidence-based finding is that strict rest is detrimental to recovery 1. The 2023 PM&R consensus statement, which systematically reviewed 80 studies, found clear evidence of harm from prolonged complete rest. This represents a paradigm shift from older concussion management approaches.
Physical Activity Restrictions
What to Avoid:
- High-intensity physical activity (evidence shows this is harmful) 1
- Contact sports or activities with risk of re-injury
- Activities that significantly worsen symptoms
What to Allow:
- Light aerobic exercise (walking, stationary biking) that doesn't exacerbate symptoms 2
- Normal activities of daily living as tolerated 2
- For adolescents specifically: Exercise is actually recommended as therapeutic intervention 1
The return-to-sport progression should follow a staged approach: symptom-limited activity → light aerobic exercise → sport-specific exercise → non-contact drills → full contact practice → return to sport, with each stage typically lasting 24 hours if symptoms don't return 2.
Cognitive Restrictions
Reasonable Accommodations (Not Complete Restriction):
Environmental modifications:
- Sunglasses/hat for light sensitivity
- Earplugs for noise sensitivity
- Leaving class early to avoid crowded hallways
- Avoiding noisy environments (cafeterias, assemblies) 2
Academic adjustments:
- Limit electronic screen time or adjust settings (font size, brightness)
- Allow extra time for assignments/tests
- Reduce workload temporarily
- Provide quiet testing environments 2
Critical caveat: These should be temporary accommodations, not complete cognitive rest. The goal is symptom-limited activity, not activity avoidance.
Additional Practical Restrictions
Driving: Discuss risks with older patients, as subtle cognitive deficits may persist even when patients report feeling asymptomatic. No widely accepted protocols exist, but preliminary data suggest impairment may be present 2.
Common Pitfall to Avoid
The biggest mistake is prescribing complete "cocoon therapy" or strict rest. This outdated approach has been shown to be harmful and can actually prolong recovery 1. Instead, encourage gradual return to activities at a level that doesn't significantly worsen symptoms—this is the "symptom-limited activity" approach that forms the foundation of modern concussion management.