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A single study with sample size of 8 can hardly be called a science answer.

According to A Meta-Analysis of the Effects of Foam Rolling on Performance and Recovery the results across are sometimes contradictory, with no agreed upon mechanical reason for why it should work and heavily tied to the psychological aspect of it.

It can be effective placebo treatment if you believe in it, but won’t actually treat the DOMS.

PubMed Central (PMC)A Meta-Analysis of the Effects of Foam Rolling on Performance and RecoveryFoam rolling is thought to improve muscular performance and flexibility as well as to alleviate muscle fatigue and soreness. For this reason, foam rolling has become a popular intervention in all kinds of sport settings used to increase the efficiency ...
lfod14

@UndercoverUlrikHD @partial_accumen define "treat the DOMS", rolling absolutely helps, that's like saying a massage doesn't relax you. Muscles stiffen up when we best them, and rolling although temporarily relaxes them again, which helps pain. Just because you can't explain a mechanism doesn't mean it doesn't work. There's no shortage of drugs out there that we still don't know completely how they work, but we know that they do, doesn't stop them from being prescribed.