| Validity of an exercise test based on habitual gait speed in mobility-limited older adults. | |
| | |
MedLine Citation:
|
PMID: 22289248 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
|
OBJECTIVE: To evaluate whether a customized exercise tolerance testing (ETT) protocol based on an individual's habitual gait speed (HGS) on level ground would be a valid mode of exercise testing older adults. Although ETT provides a useful means to risk-stratify adults, age-related declines in gait speed paradoxically limit the utility of standard ETT protocols for evaluating older adults. A customized ETT protocol may be a useful alternative to these standard methods, and this study hypothesized that this alternative approach would be valid. DESIGN: We performed a cross-sectional analysis of baseline data from a randomized controlled trial of older adults with observed mobility problems. Screening was performed using a treadmill-based ETT protocol customized for each individual's HGS. We determined the content validity by assessing the results of the ETTs, and we evaluated the construct validity of treadmill time in relation to the Physical Activity Scale for the Elderly (PASE) and the Late Life Function and Disability Instrument (LLFDI). SETTING: Outpatient rehabilitation center. PARTICIPANTS: Community-dwelling, mobility-limited older adults (N=141). INTERVENTIONS: Not applicable. MAIN OUTCOME MEASURES: Cardiac instability, ETT duration, peak heart rate, peak systolic blood pressure, PASE, and LLFDI. RESULTS: Acute cardiac instability was identified in 4 of the participants who underwent ETT. The remaining participants (n=137, 68% female; mean age, 75.3y) were included in the subsequent analyses. Mean exercise duration was 9.39 minutes, with no significant differences in durations being observed after evaluating among tertiles by HGS status. Mean peak heart rate and mean peak systolic blood pressure were 126.6 beats/min and 175.0mmHg, respectively. Within separate multivariate models, ETT duration in each of the 3 gait speed groups was significantly associated (P<.05) with PASE and LLFDI. CONCLUSIONS: Mobility-limited older adults can complete this customized ETT protocol, allowing for the identification of acute cardiac instability and the achievement of optimal exercise parameters. |
| | |
Authors:
|
Xin Li; Daniel E Forman; Dan K Kiely; Sharon Larose; Ronald Hirschberg; Walter R Frontera; Jonathan F Bean |
Related Documents
:
|
22433258 - Validity of the oxygen uptake efficiency slope in children with cystic fibrosis and mil... 18391218 - Massive global ozone loss predicted following regional nuclear conflict. 6454768 - Shooting, sensorineural hearing loss, and workers' compensation. 20502988 - The cardiovascular, respiratory, and metabolic effects of a long duration electronic co... 11091628 - A randomized controlled trial on the prevention of seroma after partial or total mastec... 19519698 - Effect of long-term, community-based daily exercise on the ability to control the dynam... |
Publication Detail:
|
Type: Journal Article |
Journal Detail:
|
Title: Archives of physical medicine and rehabilitation Volume: 93 ISSN: 1532-821X ISO Abbreviation: Arch Phys Med Rehabil Publication Date: 2012 Feb |
Date Detail:
|
Created Date: 2012-01-31 Completed Date: - Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 2985158R Medline TA: Arch Phys Med Rehabil Country: United States |
Other Details:
|
Languages: eng Pagination: 344-50 Citation Subset: AIM; IM |
Copyright Information:
|
Copyright © 2012 American Congress of Rehabilitation Medicine. Published by Elsevier Inc. All rights reserved. |
Affiliation:
|
University of New England College of Osteopathic Medical School, Biddeford, ME. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
|
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Prevalence of anatomic impediments to interlaminar lumbar epidural steroid injection.
Next Document: Low impact of congenital hand differences on health-related quality of life.