Faculty Publications


Strength-power relationships during two lower extremity movements in female division I rowers

Document Type



Concentric-only, Force, Stretch-shortening cycle

Journal/Book/Conference Title

Journal of Exercise Physiology Online





First Page


Last Page



The purpose of this study was to examine the role of strength in the ability to express power during concentric-only (CO) and stretch-shortening cycle (SSC) leg press movements in a group of similarly strength-trained members of a Division I female rowing team, and to observe the effect of load on the relationship between strength and power. Subjects (n=30) performed one-repetition maximum (1RM) tests on the Omnikinetic (Omk) dynamometer as well as two series (CO vs. SSC) of explosive leg presses with loads ranging from 30-80% 1RM. Moderate to strong relationships were observed between 1RM and peak power (PP) (r = 0.436 - 0.718) for both CO and SSC except for 80% CO and 70-80% SSC. There were few significant correlations between 1RM and power output during the initial 200 ms of the concentric phase (P50-200). Additionally, subjects were placed into high-RM (n=13, 1RM>187 kg) and low-RM (n=17, 1RM<187 kg) groups and compared. The high-RM group had significantly greater PP at all loads for both CO and SSC (p<0.05). There were no significant differences at P50 for both CO and SSC. Stronger subjects had significantly greater P100 at 30-50% CO and at 40% SSC, greater P150 at 30-50% CO and at 40% SSC as well as greater P200 at 30-50% CO and at 50-60% SSC. It appears that strength plays a significant role in PP during both CO and SSC leg press movements in similarly trained female Division I rowers and the effect of strength diminishes at the greatest loads.

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