The Relationship of Knee-Extensor Strength and Rate of Torque Development to Sit-to-Stand Performance in Older Adults.
Purpose: To investigate the association of knee-extensor strength and power to performance in the 30-second sit-to-stand test (30sSTS) in healthy older adults. Method: In a cross-sectional study of 29 healthy older adults aged 60-82 years (12 male, 17 female), hierarchical regression was used to det...
| Publicado en: | Physiotherapy Canada Vol. 65; no. 3; pp. 229 - 236 |
|---|---|
| Autores principales: | , , , , , , |
| Formato: | research tables/charts Journal Article |
| Publicado: |
University of Toronto Press
2013
|
| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=104200613&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 104200613 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 03000508 R42 jtl: Physiotherapy Canada issn: 03000508 maglogo: N pubinfo: dt: 2013 vid: 65 iid: 3 pid: 678 pub: University of Toronto Press place: North York, Ontario artinfo: ui: 104200613 89220712 89220712 10.3138/ptc.2012-04 NLM24403691 PMC3740986 104200613 ppf: 229 ppct: 7 formats: fmt: @attributes: type: P tig: atl: The Relationship of Knee-Extensor Strength and Rate of Torque Development to Sit-to-Stand Performance in Older Adults. aug: au: Crockett, Katie Ardell, Kimberly Hermanson, Marlyn Penner, Andrea Lanovaz, Joel Farthing, Jonathan Arnold, Cathy affil: School of Physical Therapy sug: subj: Knee Physiology Extension Evaluation Flexion Evaluation Rising Evaluation Muscle Strength Evaluation Funding Source Human Middle Age Aged Aged, 80 and Over Male Female Cross Sectional Studies Regression Descriptive Statistics P-Value Dynamometry Random Assignment Scales T-Tests Data Analysis, Statistical Data Analysis Software Middle Aged: 45-64 years Aged: 65+ years Aged, 80 & over Male Female ab: Purpose: To investigate the association of knee-extensor strength and power to performance in the 30-second sit-to-stand test (30sSTS) in healthy older adults. Method: In a cross-sectional study of 29 healthy older adults aged 60-82 years (12 male, 17 female), hierarchical regression was used to determine the relationship of knee-extensor concentric and eccentric strength, peak rate of torque development (peak RTD) using isokinetic dynamometry, and momentum variables with the number of sit-to-stand repetitions completed in 30 seconds (30sSTSreps). Results: Concentric (180°/s) and eccentric (90°/s) knee-extensor strength were significant independent predictors of 30sSTSreps after controlling for physical activity level, height and weight (adjusted R2=0.425, p=0.004; adjusted R2=0.427, p=0.004 respectively), as was concentric (90°/s) knee-extensor peak RTD (adjusted R2=0.424, p=0.004). Peak linear vertical momentum (PLVM) (adjusted R2=0.615, p<0.001) accounted for 36% of the variance. Conclusions: Generation of PLVM is an important predictor of 30sSTSreps; knee-extensor concentric and eccentric strength and power are associated with improved performance in this common functional task. Focusing on these parameters in exercise interventions may improve functional performance and give insight into specific factors related to success on the test. pubtype: Academic Journal doctype: research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
|---|