跳至内容
Effects of functional ability and training on chair-rise biomechanics in older adults.
關閉線上預覽
正在查...

Effects of functional ability and training on chair-rise biomechanics in older adults.

作者: NB Alexander 有關機構: Geriatric Research, Education and Clinical Center, Department of Veterans Affairs Medical Center, Ann Arbor, MI 48109, USA. nalexand@umich.edu; MM Gross; JL Medell; MR Hofmeyer
版本/格式: 文章 文章 : 英語
刊登於:The journals of gerontology. Series A, Biological sciences and medical sciences, 2001 Sep; 56(9): M538-47
資料庫:取自MEDLINE®/PubMed®,這是美國醫學圖書館的一個資料庫。
其他資料庫: ArticleFirst
提要:
BACKGROUND: Difficulty in rising from a chair is common in older adults and may be assessed by examining the biomechanics of the rise. The purposes of this study were (i) to analyze the biomechanics of rise performance during chair-rise tasks with varying task demand in older adults with varying rise ability and (ii) to determine whether a strength-training program might improve chair-rise success and alter  再讀一些...
評定級別:

(尚未評分) 0 附有評論 - 成爲第一個。

更多類似這樣的

 

&AllPage.SpinnerRetrieving;

在圖書館查詢

&AllPage.SpinnerRetrieving; 正在查詢有此資料的圖書館...

詳細書目

文件類型: 文章
所有的作者/貢獻者: NB Alexander 有關機構: Geriatric Research, Education and Clinical Center, Department of Veterans Affairs Medical Center, Ann Arbor, MI 48109, USA. nalexand@umich.edu; MM Gross; JL Medell; MR Hofmeyer
ISSN:1079-5006
語言註釋: English
專有的識別號: 117698727
獎賞:

摘要:

BACKGROUND: Difficulty in rising from a chair is common in older adults and may be assessed by examining the biomechanics of the rise. The purposes of this study were (i) to analyze the biomechanics of rise performance during chair-rise tasks with varying task demand in older adults with varying rise ability and (ii) to determine whether a strength-training program might improve chair-rise success and alter chair-rise biomechanics, particularly under situations of increased task demand. METHODS: A training group (n = 16; mean age, 82 years) completed a 12-week strength-training regimen while a control group (n = 14; mean age, 84 years) participated in a seated flexibility program. Outcomes included the ability to complete seven chair-rise tasks, and, if the chair-rise tasks were successful, the biomechanics of these rises. Chair-rise task demand was increased by lowering the seat height, restricting the use of hands, increasing rise speed, and limiting foot support. RESULTS: At baseline, increased chair-rise task demand generally required increased task completion time, increased anterior center of pressure (COP) placement, increased momentum, increased hip flexion, and increased hip and knee torque output. Those unable to rise at 100% knee height without the use of their hands (task NH-100), compared with those able to rise during task NH-100, followed this pattern in requiring increased time, more anterior placement of the COP, and increased hip flexion to rise in the least demanding tasks allowing the use of hands. However, the unable subjects generated less momentum and knee torque in these tasks. At 12 weeks, and compared with baseline and controls, the training group demonstrated changes in chair-rise biomechanics but no significant changes in rise success. The training subjects, as compared with the controls, maintained a more posterior COP, increased their vertical and horizontal momentum, maintained their knees in greater extension, and maintained their knee-torque output. CONCLUSIONS: These data demonstrate that subtle yet significant changes can be demonstrated in chair-rise performance as a result of a controlled resistance-training program. These biomechanical changes may represent a shift away from impairment in chair-rise ability, and, although the changes are small, they represent how training may reduce rise difficulty.

評論

讀者提供的評論
正在擷取GoodReads評論...
正在擷取DOGObooks的評論

標籤

所有的讀者標籤 (1)

檢視最熱門的標籤,呈現的形式是: 標籤我的最愛清單 | 標籤雲(tag cloud)

  • Read  (由 1 個人)
確認申請

你可能已經申請過這份資料。若還是想申請,請選確認。

關閉視窗

請登入WorldCat 

没有帳號嗎?你可很容易的 建立免費的帳號.