PHYSIOLOGICAL RESPONSES DURING PUSHING OF A RACING-WHEELCHAIR IN ATHLETES WITH SPINAL CORD INJURY
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- TAKAGI SATOKO
- <I>Faculty of Letters and Education, Ochanomizu University</I>
Bibliographic Information
- Other Title
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- 脊髄損傷者のレース用車椅子走行における生理学的応答
- セキズイ ソンショウシャ ノ レースヨウ クルマイス ソウコウ ニ オケル セ
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Abstract
The purpose of this study was to investigate the physiological responses during pushing of a racing-wheelchair. Five subjects with spinal cord injury (T4-L1) participated in two experiments. In the first experiment, the subjects pushed a racing-wheelchair mounted on a roller. Pulmonary ventilation (VE), oxygen uptake (VO2), heart rate (HR), blood lactate concentration (LA), and rating of perceived exertion (RPE) were measured to examine the physiological responses during submaximal and maximal tests of wheelchair exercise. The mean value of %VO2max at ventilatory threshold (VT) was 60.7±5.3%. VO2 increased curvilinearly with speed, and HR increased with speed, forming an S-shape. HR increased linearly with increasing VO2 before the VT, then showed a steeper parabolic rise to almost maximum, followed by a flat phase. In the second experiment, during 1500-m and 5000-m wheelchair races and a half-marathon, VE, VO2, and HR were measured to reveal the physiological characteristics of wheelchair racing as a competitive sport. During the 1500-m and 5000-m races by four subjects, the mean values of %VO2max were 73.1±7.3% and 66.0±13.3%, respectively. During the half-marathon by one subject, %VO2max reached 72.1%. These data suggest that wheelchair endurance athletes compete at very high intensity (over VT level) in wheelchair races.
Journal
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- Japanese Journal of Physical Fitness and Sports Medicine
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Japanese Journal of Physical Fitness and Sports Medicine 47 (1), 73-85, 1998
The Japanese Society of Physical Fitness and Sports Medicine
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Keywords
Details 詳細情報について
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- CRID
- 1390001204921684992
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- NII Article ID
- 110001918501
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- NII Book ID
- AN00137986
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- ISSN
- 18814751
- 0039906X
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- HANDLE
- 10083/31716
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- NDL BIB ID
- 4399331
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- Data Source
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- JaLC
- IRDB
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed