Influence of Different Inertial Loads on Basic Training Variables During the Flywheel Squat Exercise

Rafael Sabido, Jose Luis Hernández-Davó, Gabriel T Pereyra-Gerber
International Journal of Sports Physiology and Performance 2018 April 1, 13 (4): 482-489

PURPOSE: To analyze the effects of different inertial loads on power production and power maintenance, as well as the number of sessions required for proper familiarization during the flywheel quarter-squat.

METHODS: Twenty-four high-level handball players attended 4 testing sessions consisting of 4 sets of 10 repetitions using 4 different inertial loads (0.025, 0.050, 0.075, and 0.100 kg·m2 ). In addition, a 5th set of 15 repetitions was performed. Both concentric and eccentric peak power and the eccentric:concentric ratio were recorded.

RESULTS: The results showed the need to perform 3 sessions for a proper familiarization (ie, outcomes stabilization). The inertial load of 0.025 kg·m2 led to greater concentric peak power compared with the other inertial loads (from likely to most likely greater values). Both 0.025 and 0.050 kg·m2 inertial loads entailed greater eccentric peak power compared with 0.075 and 0.100 kg·m2 (most likely greater). Conversely, the 0.025-kg·m2 inertial load showed a lower eccentric:concentric ratio, presenting negative effects (most likely lower values) compared with the inertial loads of 0.050, 0.075, and 0.100 kg·m2 . Participants were able to perform 5-12 repetitions per set without significant peak power output decrements.

CONCLUSIONS: This study highlights the importance of performing at least 3 sessions to obtain a stable measure during flywheel squat exercise. Lower inertial loads (0.025 kg·m2 ) are the better option for eliciting high concentric peak power output values. In contrast, medium to high inertial loads are more appropriate to achieve greater eccentric overload values.

Full Text Links

Find Full Text Links for this Article


You are not logged in. Sign Up or Log In to join the discussion.

Trending Papers

Available on the App Store

Available on the Play Store
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"