The effect of foam rolling treatment after delayed onset muscle soreness for isokinetic muscular strength, explosive strength, and muscle soreness

BACKGROUND: Foam rolling treatment is widely used as a stretching tool for muscle relaxation, but it has not yet identified at which point the effect is maximized, either warm-up or cool-down. METHODS: In this study, men in their 20s, were divided into two groups to perform acute high training: one is warmup with foam rolling group (WFRG, N.=16), and the other is cool-down with foam rolling group (CFRG, N.=18). And then, we compared the resistance of foam isokinetic muscular strength at 60 degrees/s with the ratio of quadriceps hamstring at 180 degrees/s by inducing delayed onset muscle soreness (DOMS), and vertical jump and visual analog scale(VAS) scale were also compared. RESULTS: We observed large statistically significant that isokinetic muscular strength of 60 degrees/s, WFRG increased in the groups of after 24 hours and 48 hours than before the warm-up group. At isokinetic muscular strength of 180 degrees/s, the extensor was higher in WFRG than CFRG after 48 hours and the flexor and H:Q ratio was higher in CFRG than in WFRG. vertical jump value was significantly higher in the warm-up group than after 24 hours and 48 hours in WFRG. In addition, VAS value was higher in the warm-up group than 48 hours in both WFRG and CFRG. CONCLUSIONS: This study reveals that when planning acute high intensity training, DOMS can be quickly recovered from by treating a foam roller as warm-up.