| Autor: |
Quesada, Pete M., Wellwood, Joe, Patel, Neel L., Caruso, John F. |
| Předmět: |
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| Zdroj: |
Kentucky SHAPE JOURNAL; Fall2022, Vol. 60 Issue 1, p75-91, 17p |
| Abstrakt: |
Exercise with selectorized weight stack machines do not impart oscillatory loads; this in turn limits antagonistic muscle coactivation. Recent advancements include computer-controlled cable-driven strength training devices. Little data have been collected from such devices, including those which measure antagonistic muscle coactivation. This pilot study’s rationale is to quantify antagonistic muscle coactivation and EMG repeatability from workouts on a computer-controlled cable-driven strength training device. Methods had men (n = 8) do two workouts 48 hours apart on the device with workouts examining three exercises (bench press, standing calf raise, back squat) performed under two loading conditions (oscillatory or non-oscillatory). Per set, subjects did four repetitions against 27.3 kg as surface EMG was obtained from eight muscles. Key findings include no significant RMS differences between loading conditions. Data repeatability showed mixed results. A conclusion can be made that sample size and inter-subject variability impacted data repeatability. Future efforts to elicit greater antagonistic coactivation must first modify the oscillatory module. [ABSTRACT FROM AUTHOR] |
| Databáze: |
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