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Metabolic responses during hydraulic resistance exercise.
D L Ballor1, M D Becque, V L Katch
1Department of Kinesiology, School of Medicine, University of Michigan, Ann Arbor 48109.
Medicine and Science in Sports and Exercise
|August 1, 1987
Summary
Hydraulic resistance exercise circuits provide a moderate cardiovascular challenge, averaging 81.2% of maximal heart rate. This circuit training also yields significant caloric expenditure, averaging 9.75 kcal per minute.
Area of Science:
- Exercise Physiology
- Sports Science
- Biomechanical Engineering
Background:
- Cardiovascular and metabolic responses to hydraulic resistance exercise are not well-documented.
- Understanding these responses is crucial for designing effective training programs.
Purpose of the Study:
- To assess the physiological demands and energy expenditure of a hydraulic resistive exercise circuit.
- To compare the intensity of hydraulic circuit exercise to maximal aerobic capacity.
Main Methods:
- Thirteen college-age men completed a graded maximal oxygen uptake (VO2max) test on a treadmill.
- Participants then performed a 24.5-minute hydraulic resistance exercise circuit.
- The circuit included seven exercises with specific work-to-rest intervals.
Main Results:
- Average heart rate during the circuit was 153.8 bpm (81.2% of TM max).
- Average oxygen uptake (VO2) was 1.93 l/min (41.4% of TM max).
- Caloric expenditure averaged 40.8 kJ/min (9.75 kcal/min).
Conclusions:
- Hydraulic circuit resistance exercise elicits a moderate cardiovascular response.
- The circuit provides a substantial caloric expenditure, contributing to overall energy balance.
- This exercise modality may be a viable option for improving cardiovascular fitness and managing weight.