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Optimal loading during two different leg-press movements in female rowers
Robin J Lund1, Dennis G Dolny, Kathy D Browder
1School of HPELS, University of Northern Iowa, Cedar Falls, IA 50614, USA. robin.lund@uni.edu
Medicine and Science in Sports and Exercise
|January 7, 2004
Summary
Optimal leg-press loads for power in female rowers were identified. Mean and peak power were maximized around 60% of one-repetition maximum (1RM) for both concentric only (CO) and stretch-shortening cycle (SSC) movements.
Area of Science:
- Sports Science
- Biomechanics
- Exercise Physiology
Background:
- Rowing performance relies on explosive leg power.
- Understanding optimal training loads is crucial for enhancing athletic performance.
Purpose of the Study:
- To determine the optimal load for leg-press power in trained female rowers.
- To compare power output during concentric only (CO) and stretch-shortening cycle (SSC) movements.
Main Methods:
- Thirty female rowers performed leg-press tests at loads ranging from 30-80% of their one-repetition maximum (1RM).
- Mean power (MP), peak power (PP), and power output at specific time intervals (P50-P200) were measured during CO and SSC movements.
Main Results:
- Mean power and peak power were maximized at approximately 60% 1RM for both CO and SSC movements.
- Power output at 150 ms (P150) was greatest at 30-60% 1RM for both movement types.
- Power output at 200 ms (P200) showed varied optimal loads depending on the movement type (CO vs. SSC).
Conclusions:
- Optimal loads for MP and PP were similar between CO and SSC movements.
- An enhancement in power during the initial 200 ms of the SSC concentric phase was observed.
- Rowing's CO training may influence the effectiveness of SSC movements.