The hypothesis is that self-myofascial release (SMR) intervention on the cuff muscles would affect positively sprint performance and jump height, as well as, decrease Achilles tendon stiffness. The second hypothesis is that tissue flossing would be more effective than foam rolling. The participants will be randomly assigned to foam rolling, tissue flossing, and control group (without any intervention). After the intervention, repeated measures will be performed (15m sprint, countermovement jump (CMJ) and Achilles tendon stiffness). This will aim to improve sprint time, jump height and decrease tendon stiffness.
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Change in counter-movement jump (CMJ)
Timeframe: Baseline, 5 minutes, 15 minutes, 30 minutes, 45 minutes, 60 minutes
Change in 15-meter sprint run
Timeframe: Baseline, 5 minutes, 15 minutes, 30 minutes, 45 minutes, 60 minutes
Change in viscoelastic properties of the Achilles tendon.
Timeframe: Baseline, 5 minutes, 15 minutes, 30 minutes, 45 minutes, 60 minutes