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Economical estimates of oxygen uptake as a function of gait parameters for an ambulatory monitoring system
http://hdl.handle.net/10173/742
http://hdl.handle.net/10173/7429aad8cc7-199d-4788-a2fe-f6d90ca1eb12
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
TR_30_2_219.pdf (383.5 kB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2011-10-18 | |||||
| タイトル | ||||||
| タイトル | Economical estimates of oxygen uptake as a function of gait parameters for an ambulatory monitoring system | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Walking speed | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Step length | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Step frequency | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Walking exercise | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| 著者 |
Takahashi, Tatsuhisa
× Takahashi, Tatsuhisa× Yanagita, Hirotaka× Niizeki, Kyuchi× Wang, Shuoyu× Matsuo, Takashi× Watanabe, Shinichi× Okada, Akiyoshi× Kuwayama, Takashi× Natsui, Junichi |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | To examine a method to save time and money with empirical equations representing the relationship between oxygen uptake（V・O2）, walking speed（v）, step frequency（SF）,and step length（SL）, we recorded the V ・O2 and SF of 7 young male volunteers walking at an increasing speed from 16.7 to 131.7 m min−1 with 5 m min−1 increments every 1 min,and at a decreasing speed from 106.7 m min−1 for 5 min to 16.7 m min−1 with 5 m min−1 decrements every 1 min on a level treadmill. SL was also computed by dividing walking speed by SF. The V・O2 during decremental−speed walking was significantly greater compared to that during incremental−speed walking at corresponding speeds. The SF and SL could be expressed as a function of speed by SF＝13.18 and SL＝0.076 , respectively, regardless of the different modes of walking with respect to speed. To estimate the V ・O2 during walking at different speeds, the results of the increments and decrements were combined by averaging them with respect to speed（V・O2＝1.454×10−4v2−6.5×10−3v＋0.663, r＝0.999, n＝7）. In a mathematical model of the cardiorespiratory system, the average values of V・O2 at a given speed, even though there were on− and off−phase responses, could be predicted within 7.4％ of the theoretical steady−state value. These results suggest that the V ・O2 against walking speed can be estimated by averaging the responses between the increments and decrements of moderate speeds. This could improve exercise tests for V・O2 estimates in terms of time and money. In addition, by using the closerelationship between SF and v, V・O2 can be also expressed as a function of SF. | |||||
| 書誌情報 |
Therapeutic research 巻 30, 号 2, p. 219-225, 発行日 2009-02-20 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0289-8020 | |||||
| 書誌レコードID | ||||||
| 収録物識別子タイプ | NCID | |||||
| 収録物識別子 | AN10043845 | |||||
| 著者版フラグ | ||||||
| 出版タイプ | VoR | |||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
| 出版者 | ||||||
| 出版者 | Life Science Publishing | |||||
