Effects of Swimming Suits with Different Styles and Materials on Propulsive Power and Intra-abdominal Pressure during Swimming
【Supercategory：7. DESCENTE SPORTS SCIENCE Subcategory：7.39 Vol.39】
ABSTRACT
Present study aimed to clarify the effects of swimming suit with different styles and materials on active drag and intra-abdominal pressure (IAP) during front crawl swimming with arm stroke only (pull) and whole-body stroke (swim). Ten well-trained male collegiate swimmers (1.72±0.06m; 66.6±5.9kg; 21.3±1.7yr) participated in this study. For this experiment, IAP was determined during both pull and swim with maximal effort, and drag-swimming velocity relationship and maximum propulsive power were determined during only pull, wearing competitive swimming suit (RS) and conventional swimming suit (CS). IAP was measured using the mean of 2 stable front crawl stroke cycles taken from the difference between minimum and maximum values in each cycle. Active drag force and maximum propulsive power were measured during pull using a system of underwater push-off pads instrumented with a force transducer (MAD system). Maximum swimming velocities during pull and swim were significantly higher RS than CS. On the other hand, there were no significant difference in IAP between swim suits, and also between pull and swim. There were no significant difference in the estimated drag values at 1.6, 1.8, 2.0m.s⁻¹, maximum propulsive power and IAP related to swimming velocity between RS and CS. These results suggest that RS would contribute to improve swimming performance compared to CS, but that it would not be brought any influences on maximum propulsive power, drag-swimming velocity relationship and IAP.
DESCENTE SPORTS SCIENCE Vol.39/THE DESCENTE AND ISHIMOTO MEMORIAL FOUNDATION FOR THE PROMOTION SPORTS SCIENCE
Present study aimed to clarify the effects of swimming suit with different styles and materials on active drag and intra-abdominal pressure (IAP) during front crawl swimming with arm stroke only (pull) and whole-body stroke (swim). Ten well-trained male collegiate swimmers (1.72±0.06m; 66.6±5.9kg; 21.3±1.7yr) participated in this study. For this experiment, IAP was determined during both pull and swim with maximal effort, and drag-swimming velocity relationship and maximum propulsive power were determined during only pull, wearing competitive swimming suit (RS) and conventional swimming suit (CS). IAP was measured using the mean of 2 stable front crawl stroke cycles taken from the difference between minimum and maximum values in each cycle. Active drag force and maximum propulsive power were measured during pull using a system of underwater push-off pads instrumented with a force transducer (MAD system). Maximum swimming velocities during pull and swim were significantly higher RS than CS. On the other hand, there were no significant difference in IAP between swim suits, and also between pull and swim. There were no significant difference in the estimated drag values at 1.6, 1.8, 2.0m.s⁻¹, maximum propulsive power and IAP related to swimming velocity between RS and CS. These results suggest that RS would contribute to improve swimming performance compared to CS, but that it would not be brought any influences on maximum propulsive power, drag-swimming velocity relationship and IAP.
DESCENTE SPORTS SCIENCE Vol.39/THE DESCENTE AND ISHIMOTO MEMORIAL FOUNDATION FOR THE PROMOTION SPORTS SCIENCE
| Researcher | Shinichiro Moriyama*1, Futoshi Ogita*2, Hirotoshi Mankyu*2 |
|---|---|
| University or institution | *1 Tokyo Gakugei University, *2 National Institute of Fitness and Sports |
Keywords
swimsuit, active drag, maximal propulsive power, intra-abdominal pressure, swimming performance