Foam rolling and massage guns produce real but small, mostly short-lived benefits — flexibility and perceived soreness improve, but strength, power and sprint performance don't reliably change
Interpretation
Wiewelhove et al.'s meta-analysis of 21 studies found foam rolling worked better pre-exercise (small flexibility and sprint gains) than post-exercise (a modest pain reduction), concluding it functions better as a warm-up tool than a recovery tool. Davis et al.'s meta-analysis of 29 studies found sports massage had no effect on strength, jump, sprint or endurance, with its real benefits — flexibility and DOMS reduction — driven substantially by a handful of outlier studies. Ferreira et al.'s review specific to massage guns (11 studies) found the same pattern at the device level: short-term range-of-motion gains, no sustained strength or power benefit, and any post-fatigue benefit gone within 48 hours.
Practical implication
Position foam rolling and massage guns honestly: useful, low-cost tools for short-term flexibility and perceived soreness relief, best used as part of a warm-up rather than a primary recovery strategy, and not a substitute for anything that actually restores strength or power output.
Sources
3 sources, independently verified.
Used before exercise, foam rolling produced small gains in flexibility (+4.0%, effect size 0.34) and sprint performance (+0.7%, ES 0.28); used after exercise, it reduced perceived pain (-6.0%, ES 0.47). Nearly every effect size was small, and the review's own conclusion is that foam rolling works better as a warm-up tool than as a recovery tool — not the dramatic recovery intervention it's often marketed as.
Sports massage showed no benefit for strength, jump height, sprint speed, endurance, or fatigue, but did produce real effects on flexibility (SMD 1.07, roughly 7%) and delayed-onset muscle soreness (SMD 1.13, roughly 13%) — though both of those effects were driven heavily by a small number of outlier studies (high I², flagged in the review). The pattern repeats across this article's sources: comfort/soreness benefits are real, performance benefits aren't.
Massage guns specifically produced short-term range-of-motion and flexibility gains, but no improvement (and sometimes a decrease) in strength, balance, acceleration or agility; any post-fatigue benefit disappeared by 48 hours. 10 of the 11 included studies carried a moderate risk of bias. The newest and most specific evidence on this exact device category, and it lands in the same place as the broader foam-rolling and massage literature: real but narrow and short-lived benefit.