Movement velocity as a measure of exercise intensity in three lower limb exercises

Conceição, F, Fernandes, J, Lewis, M ORCID: https://orcid.org/0000-0001-5918-3444, Gonzaléz-Badillo, JJ and Jimenéz-Reyes, P, 2016. Movement velocity as a measure of exercise intensity in three lower limb exercises. Journal of Sports Sciences, 34 (12), pp. 1099-1106. ISSN 0264-0414

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Abstract

The purpose of this study was to investigate the relationship between movement velocity and relative load in three lower limbs exercises commonly used to develop strength: Leg Press, Full Squat, and Half Squat. The percentage of one Repetition Maximum (%1RM) has typically been used as the main parameter to control resistance training, however more recent research has proposed movement velocity as an alternative. Fifteen participants performed a load progression with a range of loads until they reached their one repetition maximum (1RM). Maximum instantaneous velocity V max) and mean propulsive velocity (MPV) of the knee extension phase of each exercise were assessed. For all exercises, a strong relationship between V max and the %1RM was found: Leg Press (r2adj=0.96; 95% CI for slope is [-0.0244,-0.0258], p<0.0001), Full Squat (r2adj=0.94; 95% CI for slope is [-0.0144, -0.0139],
p<0.0001), and Half Squat (r2adj=0.97; 95% CI for slope is [-0.0135, -0.00143], p<0.0001), and for MPV, Leg Press (r2adj=0.96; 95% CI for slope is [- 0.0169, -0.0175], p<0.0001, Full Squat (r2adj=0.95; 95% CI for slope is [-0.0136, -0.0128], p<0.0001), and Half Squat (r2adj=0.96; 95% CI for slope is [-0.0116, 0.0124], p<0.0001). The 1RM was attained with a MPV and Vmax of 0.21±0.06 ms-1 and 0.63±0.15 ms-1, 0.29±0.05 ms-1 and 0.89±0.17 ms-1, 0.33±0.05 ms-1, and 0.95±0.13 ms-1 for Leg Press, Full Squat and Half Squat respectively. Results indicate that it is possible to determine an exercise-specific %1RM by measuring movement velocity for that exercise.

Item Type:	Journal article
Alternative Title:	Movement strength velocity and intensity [running head]
Publication Title:	Journal of Sports Sciences
Creators:	Conceição, F., Fernandes, J., Lewis, M., Gonzaléz-Badillo, J.J. and Jimenéz-Reyes, P.
Publisher:	Taylor & Francis
Date:	2016
Volume:	34
Number:	12
ISSN:	0264-0414
Identifiers:	Number Type 10.1080/02640414.2015.1090010 DOI
Divisions:	Schools > School of Science and Technology
Record created by:	Linda Sullivan
Date Added:	06 Apr 2016 14:26
Last Modified:	09 Jun 2017 14:00
URI:	https://irep.ntu.ac.uk/id/eprint/27389

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