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Vertical impact forces during bench-step aerobics: exercise rate and experience
M Scharff-Olson1, H N Williford, D L Blessing
1Auburn University at Montgomery, Department of Foundations, Secondary and Physical Education, AL 36117, USA. molson@edla.aum.edu
Perceptual and Motor Skills
|February 1, 1997
Summary
Faster bench-step exercise increases vertical impact forces. Experienced instructors demonstrate more controlled force absorption compared to novices at higher exercise speeds.
Area of Science:
- Biomechanics
- Exercise Physiology
Background:
- Bench-step exercise is a popular aerobic activity.
- Understanding impact forces is crucial for injury prevention.
Purpose of the Study:
- To investigate the impact of exercise speed on vertical impact forces.
- To compare these forces between novice and experienced individuals.
Main Methods:
- 12 women performed bench-stepping at 30 and 33 cycles/min.
- Two techniques ('basic' and 'travel') were used.
- Vertical impact forces were measured.
Main Results:
- Higher exercise speeds (33 cycles/min) significantly increased vertical impact forces.
- Instructors showed a distinct force loading pattern, absorbing impact more effectively.
- Novices exhibited less uniform force increases at higher speeds.
Conclusions:
- Increased bench-step exercise speed elevates vertical impact forces.
- Exercise experience, particularly among instructors, correlates with better force modulation and absorption.
- Experience may enable adaptive strategies for managing impact forces at higher exercise cadences.