What is a Concussion?
A concussion is a type of traumatic brain injury caused by a blow, bump, or jolt to the head or body that causes the brain to move rapidly inside the skull. In open water swimming, concussions may occur from:
- Contact with the escort vessel during entry/exit
- Collision with floating objects or debris
- Impact with other swimmers
- Striking submerged objects or structures
- Hard contact with docks or platforms
Prevention Strategies
- Maintain awareness of your surroundings at all times
- Follow all vessel safety protocols, especially the “shaka” signal system
- Swim with proper spacing from other participants
- Use proper entry/exit techniques when boarding vessels
- Wear bright-colored swim caps for visibility
- Report hazards immediately to crew
Recognizing Concussion Symptoms
Immediate symptoms may include:
- Headache or pressure in head
- Nausea or vomiting
- Dizziness or balance problems
- Confusion or feeling “foggy”
- Memory problems
- Vision changes or sensitivity to light
- Feeling sluggish or drowsy
Delayed symptoms (hours/days later):
- Persistent headache
- Sleep disturbances
- Mood changes or irritability
- Difficulty concentrating
- Sensitivity to noise
How to Respond
If you suspect a concussion:
- Stop swimming immediately
- Signal for assistance using established protocols
- Inform crew members of the incident
- Do not continue swimming under any circumstances
- Seek immediate medical evaluation
For crew/other participants:
- Help the individual exit the water safely
- Monitor for worsening symptoms
- Contact emergency services if symptoms are severe
- Document the incident
Return to Swimming Guidelines
Never return to swimming the same day as a suspected concussion.
Return to activity should only occur after:
- Medical clearance from a healthcare provider experienced in concussion management
- Complete symptom resolution at rest and during physical activity
- Gradual return-to-activity protocol as directed by medical professional
Emergency Contacts
- Coast Guard/Emergency Responders: VHF Channel 16 or 911
- Poison Control: 1-800-222-1222
- Pacific Swim Co. Emergency Line: +1-415-737-9870
Additional Resources
- CDC Concussion Information: cdc.gov/traumaticbraininjury
- Sports Concussion Guidelines: concussioninsport.gov
Important: This information is for educational purposes only and does not replace professional medical advice. Always consult healthcare providers for concussion evaluation and management.