Journal of Sports Science and Medicine
Journal of Sports Science and Medicine
ISSN: 1303 - 2968   
Ios-APP Journal of Sports Science and Medicine
Androit-APP Journal of Sports Science and Medicine
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©Journal of Sports Science and Medicine (2016) 15, 410 - 416

Research article
Effect of Different Seat Heights during an Incremental Sit-To-Stand Exercise Test on Peak Oxygen Uptake in Young, Healthy Women
Keisuke Nakamura1,2, , Yuya Nagasawa1, Shoji Sawaki3, Yoshiharu Yokokawa4, Masayoshi Ohira4
Author Information
1 Department of Rehabilitation, Matsumoto City Hospital, Matsumoto, Nagano, Japan
2 Graduate School of Medicine, Department of Health Sciences, Shinshu University, Matsumoto, Nagano, Japan
3 Department of Cardiovascular Medicine, Matsumoto City Hospital, Matsumoto, Nagano, Japan
4 School of Health Sciences, Department of Physical Therapy, Shinshu University, Matsumoto, Nagano, Japan

Keisuke Nakamura
✉ Department of Rehabilitation, Matsumoto City Hospital, 4417-180 Hata, Matsumoto, Nagano, 390-1401, Japan
Email: keipons55@yahoo.co.jp
Publish Date
Received: 29-02-2016
Accepted: 13-06-2016
Published (online): 05-08-2016
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ABSTRACT

‘Sit-to-stand’ exercise uses the repetitive motion of standing up and sitting down in a chair, a common activity of daily living. A new assessment using an incremental sit-to-stand exercise test employs an external sound to control the speed of standing-up and allows increases in work rate. The aims of the study were to examine the effect of different seat heights on peak oxygen uptake (peak VO2) during an incremental sit-to-stand exercise and to assess any difference between peak VO2 values during incremental sit-to-stand exercise compared with a cycle ergometer test. Thirteen healthy young women (age: 23.1 ± 2.6 years, height: 1.61 ± 0.06 m, body mass: 51.9 ± 7.4 kg·m-2) participated in four incremental sit-to-stand tests with different seat heights and cycle tests in random order. The seat heights were adjusted to 100%, 80%, 120%, and 140% of knee height distance (100%, 80%, 120%, and 140% incremental sit-to-stand exercise, respectively). The peak VO2 and completion time were measured during incremental sit-to-stand and cycle ergometer tests, and repeated-measures analysis of variance and Student’s paired t-test with Holm’s method were used to evaluate differences between these variables. The peak VO2 values increased by about 10-12 mL·min-1·kg-1 as the seat height on the ISTS decreased over a 60% range of lower leg lengths. The peak VO2 values on the 80%, 100%, 120%, and 140% incremental sit-to-stand tests were about 11%, 25%, 40%, and 50% lower than that on the cycle ergometer test, respectively. The peak VO2 on the incremental sit-to-stand test increased as seat height decreased. These findings are useful to determine which seat height on the incremental sit-to-stand tests test is suitable for different populations.

Key words: Sit-to-stand test, oxygen cost, seat height


           Key Points
  • Researchers involved in collecting data in this study have no financial or personal interest in the outcome of results or the sponsor.
  • The ISTS is a simple test that requires only a small space and a chair, and the exercise intensity can be easily adjusted by changing the patients’ STS speed or the seat’s height.
  • The peak VO2 on the ISTS test increased inversely, relative to seat height within 140% to 80% of the lower leg length.
  • The effect of different seat heights during the ISTS test on the peak VO2 is beneficial to determine which seat height on the ISTS test is suitable for different populations.
 
 
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