Objective: To determine the effect of strength training in inertial machines, on SJ CMJ and CMJ with arms; in youth volleyball players from the city of Cartago. Methodology: A quasi-experimental study of quantitative order was carried out and takes up an empirical-analytical approach, quasi-experimental with pre-test - post-test evaluation. 32 female volleyball players, belonging to the minor category of the FĂ©nix G Club of the city of Cartago Valle Results: Both groups showed significant improvements in jump height, flight time, strength and power in the protocol that was carried out during the 12 weeks of intervention, but there was no statistically significant difference between the control groups (P = 0.356). , experimental (P = 0.984) Conclusions: Keywords: Inertial machines, Squat jump, Countermovent Jump, Abalakov
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Independent variable: Inertial machine program
Timeframe: 12 weeks of intervention
Dependent variable: countermovement jump, squat jump and abalakov.
Timeframe: 12 weeks of intervention