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Upper and lower body responses to repeated cyclical sprints
Israel Halperin1, Brandon W Collins1, Michael Monks1
1a School of Human Kinetics and Recreation , Memorial University of Newfoundland , St. John's , Canada.
European Journal of Sport Science
|May 9, 2018
Summary
Upper and lower body sprints show similar normalized physiological and perceptual responses. However, maximum voluntary contractions (MVC) were better maintained with the upper body, especially during shorter recovery periods.
Area of Science:
- Exercise Physiology
- Sports Science
- Human Performance
Background:
- Repeated sprint protocols are common in athletic training.
- Understanding the physiological demands of upper vs. lower body sprints is crucial for optimizing training.
- Short versus long recovery periods significantly impact sprint performance and physiological responses.
Purpose of the Study:
- To compare physiological and perceptual responses between upper and lower body all-out sprints.
- To investigate the effect of short (30s) versus long (180s) rest periods on these responses.
- To assess the maintenance of maximum voluntary contractions (MVC) during repeated sprints.
Main Methods:
- Ten recreationally trained males performed 10x10s sprints for upper and lower body with 30s or 180s rest.
- Measured peak power, MVC, heart rate (HR), and rating of perceived exertion (RPE).
- Normalized and absolute values were compared across conditions and body parts.
Main Results:
- Normalized peak power, HR, and RPE were similar between upper and lower body sprints (<2% difference).
- Upper body MVC was better maintained (~9.5%) compared to lower body MVC across recovery conditions.
- Shorter rest periods (30s) resulted in lower absolute peak power and higher HR, but similar RPE, with better MVC maintenance.
Conclusions:
- Normalized physiological and perceptual responses to repeated upper and lower body sprints are comparable.
- Upper body strength and endurance may be better maintained during repeated sprint protocols, particularly with short recovery.
- The choice of rest interval significantly influences absolute performance metrics and physiological strain.
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