Article Title



K. Furniss, N. Bowman, M. Fawson, E. Gallardo, J. Hansen, M. Denning, M. Dietze-Hermosa, R. Thiebaud

Brigham Young University Idaho, Rexburg, ID

It is unclear whether shaking, massage or resting is most effective at recovering handgrip strength and endurance in the short-term. PURPOSE: To examine the effects of varied short-term recovery methods on handgrip strength and endurance. METHODS: Participants included a convenience sample of 21 healthy males (n=11) and females (n=10) (age 22.71 ± 3.33 yrs and body mass 74.4 ± 14.3 kg). In a randomized crossover design, each participant performed one trial for each of three recovery methods: shaking, massage, and resting. In each trial, participants hung passively to failure twice with recovery in between. Handgrip strength was measured at prehang1 post hang 1, and post hang 2. Electromyography (EMG) was measured during the hangs. Data was analyzed using two-way repeated measures ANOVA (condition by time) on electromyography (EMG), handgrip strength, and hang time. RESULTS: No significant time*condition interaction effects were found (p>0.05). There was a significant time main effect for the surface EMG mean frequency slope (Hang 1: -1.136 ± 0.180 hz/second vs. Hang 2: -1.738 ± 0.180 hz/second, p< 0.001). There was a significant time main effect for handgrip strength such that pre-hang grip was significantly greater (39.6 ± 1.9 kg) than post hang 1 grip (31.3 ± 1.900 kg, p<0.001), as well as pre-hang grip and post hang 2 grip (30.0 ± 1.900 kg, p<0.001). There was no significant difference between conditions for the change in hang times (Shake: 27.4 ± 21.2 sec.; Massage: 25.3 ± 22.3 sec.; Control: 23.9 ± 18.0 sec., p=0.530). CONCLUSION: Shaking, massage, or rest during a thirty second recovery had a similar impact on endurance and handgrip strength during recovery.

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