Sports Concussion: Understanding the Return-to-Play Protocols
Initial Assessment: Immediate Removal, No On-Field Diagnosis
Sport-related concussion remains one of the most misunderstood injuries among athletes and those around them. The most recent international scientific consensus, published in the British Journal of Sports Medicine following the 6th International Conference on Concussion in Sport (Amsterdam, October 2022), updated the recommendations for management and return to play. This article summarizes those benchmarks for general information only — it is not a substitute for medical advice.
The core principle remains unchanged from previous versions of the consensus: any athlete suspected of a concussion must be removed from play immediately, even in cases of simple doubt. A multimodal on-field assessment (Maddocks questions for athletes aged 12 and older, checking for visible signs such as an unprotected fall, tonic posturing, impact seizures, an ataxic gait, or a blank stare) should be conducted over at least 10 to 15 minutes when circumstances allow. Standardized tools such as the SCAT6 (or Child SCAT6 for children) are recommended within 72 hours of the impact, but no single tool is sufficient on its own: a concussion diagnosis remains fundamentally clinical and must be made by a trained healthcare professional — never by the athlete, a teammate, or a coach.
The Six-Stage Graduated Return-to-Sport Strategy
The historic six-tier model remains the reference standard, with each stage lasting at least 24 hours. If symptoms reappear at a given stage, the athlete must return to the previous symptom-free stage and wait at least 24 hours before attempting to progress again.
- Stage 1 — Symptom-limited activity: everyday cognitive and physical tasks that do not worsen symptoms.
- Stage 2 — Light aerobic exercise: brisk walking or light-intensity stationary cycling, split by the 2022 consensus into 2A (light aerobic activity and light strengthening, at ≤55% of maximum heart rate) and 2B (moderate aerobic activity, around 70% of maximum heart rate).
- Stage 3 — Sport-specific exercise: running, skating, or sport-specific movement drills, with no risk of head impact.
- Stage 4 — Non-contact training drills: more complex coordination exercises and increased cognitive load.
- Stage 5 — Full-contact practice: allowed only after medical clearance, once cognitive and clinical function has normalized.
- Stage 6 — Return to competition: full resumption of play.
Stages 4 through 6 can only begin once concussion-related symptoms, cognitive function abnormalities, and other clinical findings — including those after physical exertion — have fully resolved. An important addition in the 2022 Amsterdam consensus: a mild, brief exacerbation of symptoms is now tolerated during progression, defined as an increase of no more than 2 points on a 0-10 scale lasting less than an hour, without this necessarily requiring a halt in progression.
What Recent Science Says About Early Return to Activity
Contrary to the older recommendation of strict, prolonged rest, current evidence shows that light physical activity that doesn't cause significant or lasting symptom worsening promotes faster recovery. The 2022 consensus now recommends only a brief period of relative rest — 24 to 48 hours after the impact — followed by a gradual resumption of activity. Aerobic exercise prescribed at an intensity that doesn't increase symptoms, started between 2 and 10 days after the concussion, has proven effective at reducing the risk of persistent symptoms and facilitating recovery in athletes with symptoms lasting beyond one month. In practice, an athlete symptom-free at rest and progressing without symptom recurrence during exertion can generally expect a full return to play in about a week after symptoms resolve — but this timeline varies considerably by age, history, and initial severity.
Red-Flag Signs Requiring Urgent Medical Attention
- Actual or suspected loss of consciousness, seizures, or abnormal rigid body posturing.
- Progressively worsening headache, repeated vomiting, or increasing confusion.
- Weakness, numbness, or coordination problems affecting the arms or legs.
- Slurred speech, double vision, agitation, or unusual behavioral changes.
- Amnesia covering events before or after the impact, or marked loss of balance.
This article is for general information only and does not constitute a diagnosis or an individual treatment protocol. Any suspected concussion, in a child or an adult, should be evaluated by a physician or a healthcare professional qualified in sports trauma before any decision about returning to training or competition.
Helpful products
- Sports Mouthguard — basic protective equipment for contact sports.
- Certified Sports Protective Helmet — choose according to the safety standards specific to each discipline.
Source: Consensus Statement on Concussion in Sport (Amsterdam 2022) - British Journal of Sports Medicine
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