Is Cold Water or Massage Better for Muscle Soreness After CrossFit?
In this randomized trial, athletes who used cold water immersion after CrossFit Murph reported zero pain at rest or during exercise by 48 hours.
The Murph workout is one of CrossFit’s most demanding challenges. It includes a 1-mile run, 100 pull-ups, 200 push-ups, 300 air squats, and another 1-mile run. This brutal workout commonly causes delayed-onset muscle soreness (DOMS). Researchers compared two popular recovery methods to see which works better.
Dr. Kumar’s Take
This study gives cold water immersion a clear edge for CrossFit recovery. By 48 hours, the ice bath group had no pain at all while exercising or resting. That is impressive. But I want to note some limitations. The researchers recruited 30 people and only 18 finished all the evaluations, leaving 8 in the massage group and 10 in the cold water group. Those are very small numbers to hang a recommendation on. Participants also knew which treatment they received, so the placebo effect could play a role. Still, if you are doing intense CrossFit workouts and need to recover quickly, cold water immersion looks like the better choice based on this evidence.
Study Design
Researchers recruited 30 participants with at least 6 months of CrossFit experience, all training at least five times per week. Everyone performed the full Murph workout individually, for time. Participants were then randomly assigned, using block randomization, to one of two recovery methods:
Cold Water Immersion (CWI): Participants sat in 8°C water for 20 minutes, with a water temperature monitor keeping the temperature consistent.
Massage Therapy (MAS): A licensed therapist provided 20 minutes of Swedish massage at moderate pressure to the arms, shoulders, legs, and back.
Only 18 participants completed the full cycle of evaluations and were included in the analysis: 8 in the massage group and 10 in the cold water group. The massage group was all female, with an average age of 33.13 years, weight of 69.60 kg, and height of 167.88 cm. The cold water group included both men and women.
Researchers measured pain using the Brief Pain Inventory and a musculoskeletal pain questionnaire, pressure pain threshold testing with an algometer at the biceps and calf, a visual analog scale, and thermal imaging of the arms and legs. Measurements were taken before the workout, immediately after recovery, and at 24 and 48 hours. Outcome assessors were blinded to group assignment, but participants were not.
Key Results
At 48 hours after cold water immersion:
- No participants reported pain at rest
- No participants reported pain during exercise
Cold water immersion significantly reduced pain prevalence both at rest and during exercise, with no pain reports at all from that group 48 hours after the intervention. This suggests cold water may be more effective for full recovery from high-intensity functional training.
How Cold Water Helps
Cold water immersion works through several mechanisms:
- Vasoconstriction: Cold narrows blood vessels and reduces muscle soreness
- Decreased metabolic activity: Cold slows metabolic activity in the tissue
- Cold-induced pain relief: Cold-induced analgesia reduces muscle inflammation and stiffness
Massage works differently, using mechanical pressure to relieve muscle stiffness, improve blood circulation, and stimulate a relaxation response. Both can help, but this study suggests cold water may be more effective for the type of muscle damage caused by CrossFit workouts.
Practical Takeaways
- Cold water immersion at 8°C for 20 minutes appears effective for CrossFit recovery
- By 48 hours, cold water users reported no pain at rest or during exercise
- Both massage and cold water are widely used recovery methods
- With only 18 people analyzed and no participant blinding, individual responses may vary
Related Studies and Research
- Related Podcast Episode
- Episode 34: The Natural Depression Treatment Doctors Don’t Tell You About
- Health effects of voluntary exposure to cold water (review)
- Editorial: The trigeminocardiac reflex beyond the diving reflex
- Plasma catecholamines and serotonin metabolites during a winter swimming season (PDF)
- Dose-response style synthesis: duration/temperature “dose” of CWI
FAQs
How cold should the water be for recovery?
This study used water at 8°C. That is cold, and the researchers kept it there for the full 20 minutes with a temperature monitor.
How long should you stay in cold water after exercise?
Participants in this study stayed in cold water for 20 minutes.
Is massage worthless for recovery?
No. Massage is one of the two most widely used recovery interventions, and it works by reducing muscle tension and improving circulation.
Can I do both massage and cold water?
This study assigned each participant to one method or the other, so it cannot tell you what happens when you combine them.
Bottom Line
In this randomized trial, athletes who used 20 minutes of cold water immersion at 8°C after CrossFit Murph reported no pain at rest or during exercise by 48 hours. For CrossFit athletes looking to minimize muscle soreness and recover quickly, cold water immersion appears to be a reasonable choice. Keep in mind that 30 people enrolled and only 18 completed the evaluations, and that participants knew their assignment, so larger and better-blinded studies would strengthen these findings.
