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This study aimed to determine whether foam roller with vibration (FRV) can improve hamstring flexibility and jump performance in young adults. Twenty subjects were randomly allocated into either the FRV or the foam-roller with no vibration (FRNV) groups. The vibration of the vibration foam-roller was 32 Hz. All participants completed one 10-min session on the hamstring. Active straight leg raising (ASLR) test in supine position and active knee extension (AKE) test in sitting position were performed to measure hamstring flexibility, before and immediately after the session. ASLR, AKE, and vertical jump performance test were performed before the session and immediately after the session. Analysis of covariance was used to determine statistical significance. ASLR and AKE tests were significantly different between FRV and FRNV, except the right hamstring. There was significant improvement with respect to ASLR and AKE tests after the session in FRV group. The vertical jump performance test of both groups was not significantly different after the session. FRV is more effective than FRNV for improving hamstring flexibility.

The immediate effects of foam roller with vibration on hamstring flexibility and jump performance in healthy adults