Reliability of force-velocity relationships during deadlift high pull |
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| Authors: | Wei Lu Sébastien Boyas Marc Jubeau |
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| Institution: | 1. Laboratory ‘Movement, Interactions, Performance’, Faculty of Sciences and Technologies, Le Mans University, Le Mans, France;2. Laboratory ‘Movement, Interactions, Performance’, Faculty of Sport Sciences, University of Nantes, Nantes, France |
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| Abstract: | This study aimed to evaluate the within- and between-session reliability of force, velocity and power performances and to assess the force-velocity relationship during the deadlift high pull (DHP). Nine participants performed two identical sessions of DHP with loads ranging from 30 to 70% of body mass. The force was measured by a force plate under the participants’ feet. The velocity of the ‘body + lifted mass’ system was calculated by integrating the acceleration and the power was calculated as the product of force and velocity. The force-velocity relationships were obtained from linear regression of both mean and peak values of force and velocity. The within- and between-session reliability was evaluated by using coefficients of variation (CV) and intraclass correlation coefficients (ICC). Results showed that DHP force-velocity relationships were significantly linear (R² > 0.90, p < 0.05). Within sessions and between sessions, mean and peak forces during DHP showed a strong agreement (CV < 3%, ICC > 0.94), mean and peak velocities showed a good agreement (CV < 9%, 0.78 < ICC < 0.92). It was concluded that DHP performance and its force-velocity relationships are highly reliable and can therefore be utilised as a tool to characterise individuals’ muscular profiles. |
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| Keywords: | Within- and between-session reproducibility ballistic movement power performance |
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