Sports Concussions: Symptoms, Recovery and Return to Play

Full-contact sports carry a higher risk of concussion.

A sports-related concussion (SRC) is a type of mild traumatic brain injury caused by a blow to the head, face or neck, or a hit to the body that transmits force to the head. Most people recover within a few weeks, but some experience persistent symptoms that require ongoing care and rehabilitation. Here's how to spot a concussion, how it's managed and how to return to school, work and sport safely.

What is a sports-related concussion?

While concussions do not typically cause structural damage to the brain, they lead to a temporary disruption in brain function. Symptoms can appear immediately or develop gradually over several hours.

Signs and symptoms of a concussion

A concussion should be suspected if one or more of the following symptoms occur after a fall, hit, collision or forceful impact.

Physical symptoms

• Headache or pressure in the head
• Nausea or vomiting
• Dizziness or balance issues
• Sensitivity to light or noise

Cognitive symptoms

• Confusion or feeling "foggy"
• Slowed reaction time
• Difficulty concentrating
• Memory loss (amnesia)

Emotional symptoms

• Irritability
• Sadness or nervousness
• Mood swings

Sleep-related symptoms

• Trouble sleeping
• Sleeping more or less than usual

If a concussion is suspected, stop all physical activity immediately and seek medical evaluation.

How are concussions managed?

Historically, complete rest was the standard approach. However, current research shows that controlled, gradual activity improves recovery in most cases.

First 24–48 hours

• Prioritize rest and sleep
• Avoid screens, reading and busy environments
• Limit cognitive load (schoolwork, video games, texting)

After 48 hours

• Begin light physical activity if symptoms stay stable
• Activities may include walking or gentle stationary cycling

Active rehabilitation

Under the guidance of a healthcare provider:

• Engage in low-intensity aerobic exercise
• Gradually increase cognitive and physical demands
• Monitor symptoms closely

The role of physical therapy in concussion recovery

Physical therapists play a vital role in helping patients recover safely and effectively. A physical therapist can help you:

1. Manage symptoms: education on pacing, triggers and recovery strategies.
2. Address neck pain and dizziness: manual therapy and targeted exercises for the cervical spine and vestibular system.
3. Improve balance and coordination: rehabilitation tailored to restore stability and prevent re-injury.
4. Guide return-to-sport progression: step-by-step protocols ensure safe and appropriate increases in activity.

Returning to school, work and sports

Return to school or work

Temporary accommodations may include:

• Shorter work or study intervals
• Reduced screen time
• Frequent breaks
• Modified workload

Return to sport

Follow a structured, stepwise return-to-sport protocol, spending at least 24 hours at each stage. If symptoms return, drop back to the previous step and progress more gradually. Athletes must be symptom-free at rest and with exertion before returning to full participation.

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the takeaway

Concussions affect brain function, not structure. Symptoms vary widely and should never be ignored. A gradual return to activity is often more effective than strict rest, physical therapy can speed recovery and a safe return to sport, and persistent symptoms need further evaluation.

Frequently asked questions

What are the signs of a concussion?

Common signs include headache or head pressure, nausea, dizziness or balance problems, sensitivity to light or noise, confusion or fogginess, trouble concentrating, memory loss, irritability or mood changes, and changes in sleep.

Should you rest completely after a concussion?

Not for long. Rest and sleep are the priority for the first 24–48 hours, but current research shows controlled, gradual activity, such as walking or gentle stationary cycling once symptoms are stable, improves recovery in most cases.

How long does it take to recover from a concussion?

Most people recover within a few weeks, but some experience persistent symptoms that require ongoing care and rehabilitation.

When can an athlete return to sport after a concussion?

Only after following a stepwise return-to-sport protocol, spending at least 24 hours at each stage, and being symptom-free at rest and with exertion.

References

Quatman-Yates CC, Hunter-Giordano A, Shimamura KK, et al. Physical therapy evaluation and treatment after concussion/mild traumatic brain injury. J Orthop Sports Phys Ther. 2020;50(4):CPG1-CPG73. doi:10.2519/jospt.2020.0301

McCrory P, Meeuwisse W, Dvořák J, et al. Consensus statement on concussion in sport: the 5th International Conference on Concussion in Sport held in Berlin, October 2016. Br J Sports Med. 2017;51(11):838-847. doi:10.1136/bjsports-2017-097699