Tags

Type your tag names separated by a space and hit enter

Sarcopenia, cardiopulmonary fitness, and physical disability in community-dwelling elderly people.
Phys Ther 2010; 90(9):1277-87PT

Abstract

BACKGROUND

Sarcopenia refers to the loss of skeletal muscle mass with aging. It is believed to be associated with functional impairment and physical disability.

OBJECTIVE

The purposes of this study were: (1) to compare the physical activity, muscle strength (force-generating capacity), cardiopulmonary fitness, and physical disability in community-dwelling elderly people with sarcopenia, borderline sarcopenia, and normal skeletal muscle mass in Taiwan and (2) to test the hypothesis that sarcopenia is associated with physical disability and examine whether the association is mediated by decreased muscle strength or cardiopulmonary fitness.

DESIGN

This was a cross-sectional investigation.

METHODS

Two hundred seventy-five community-dwelling elderly people (148 men, 127 women) aged > or =65 years participated in the study. The participants were recruited from communities in the district of Zhongzheng, Taipei. Predicted skeletal muscle mass was estimated using a bioelectrical impedance analysis equation. The skeletal muscle mass index (SMI) was calculated by dividing skeletal muscle mass by height squared. Physical disability was assessed using the Groningen Activity Restriction Scale. Physical activity was assessed using a 7-day recall physical activity questionnaire. Cardiopulmonary fitness was assessed using a 3-minute step test, and grip strength was measured to represent muscle strength.

RESULTS

Cardiopulmonary fitness was significantly lower in elderly people with sarcopenia than in those with normal SMIs. Grip strength and daily energy expenditure (kcal/kg/day) were not significantly different between the participants with sarcopenia and those with normal SMIs. The odds ratio for physical disability between the participants with sarcopenia and those with normal SMIs was 3.03 (95% confidence interval=1.21-7.61). The odds ratio decreased and the significant difference diminished after controlling for cardiopulmonary fitness.

LIMITATIONS

A causal relationship between sarcopenia and physical activity, cardiopulmonary fitness, and physical disability cannot be established because of the cross-sectional nature of study design.

CONCLUSIONS

Sarcopenia was associated with physical disability in elderly men. The association between sarcopenia and physical disability was mediated to a large extent by decreased cardiopulmonary fitness.

Authors+Show Affiliations

School and Graduate Institute of Physical Therapy, College of Medicine, National Taiwan University, Taipei, Taiwan.No affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

20616117

Citation

Chien, Meng-Yueh, et al. "Sarcopenia, Cardiopulmonary Fitness, and Physical Disability in Community-dwelling Elderly People." Physical Therapy, vol. 90, no. 9, 2010, pp. 1277-87.
Chien MY, Kuo HK, Wu YT. Sarcopenia, cardiopulmonary fitness, and physical disability in community-dwelling elderly people. Phys Ther. 2010;90(9):1277-87.
Chien, M. Y., Kuo, H. K., & Wu, Y. T. (2010). Sarcopenia, cardiopulmonary fitness, and physical disability in community-dwelling elderly people. Physical Therapy, 90(9), pp. 1277-87. doi:10.2522/ptj.20090322.
Chien MY, Kuo HK, Wu YT. Sarcopenia, Cardiopulmonary Fitness, and Physical Disability in Community-dwelling Elderly People. Phys Ther. 2010;90(9):1277-87. PubMed PMID: 20616117.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Sarcopenia, cardiopulmonary fitness, and physical disability in community-dwelling elderly people. AU - Chien,Meng-Yueh, AU - Kuo,Hsu-Ko, AU - Wu,Ying-Tai, Y1 - 2010/07/08/ PY - 2010/7/10/entrez PY - 2010/7/10/pubmed PY - 2010/10/1/medline SP - 1277 EP - 87 JF - Physical therapy JO - Phys Ther VL - 90 IS - 9 N2 - BACKGROUND: Sarcopenia refers to the loss of skeletal muscle mass with aging. It is believed to be associated with functional impairment and physical disability. OBJECTIVE: The purposes of this study were: (1) to compare the physical activity, muscle strength (force-generating capacity), cardiopulmonary fitness, and physical disability in community-dwelling elderly people with sarcopenia, borderline sarcopenia, and normal skeletal muscle mass in Taiwan and (2) to test the hypothesis that sarcopenia is associated with physical disability and examine whether the association is mediated by decreased muscle strength or cardiopulmonary fitness. DESIGN: This was a cross-sectional investigation. METHODS: Two hundred seventy-five community-dwelling elderly people (148 men, 127 women) aged > or =65 years participated in the study. The participants were recruited from communities in the district of Zhongzheng, Taipei. Predicted skeletal muscle mass was estimated using a bioelectrical impedance analysis equation. The skeletal muscle mass index (SMI) was calculated by dividing skeletal muscle mass by height squared. Physical disability was assessed using the Groningen Activity Restriction Scale. Physical activity was assessed using a 7-day recall physical activity questionnaire. Cardiopulmonary fitness was assessed using a 3-minute step test, and grip strength was measured to represent muscle strength. RESULTS: Cardiopulmonary fitness was significantly lower in elderly people with sarcopenia than in those with normal SMIs. Grip strength and daily energy expenditure (kcal/kg/day) were not significantly different between the participants with sarcopenia and those with normal SMIs. The odds ratio for physical disability between the participants with sarcopenia and those with normal SMIs was 3.03 (95% confidence interval=1.21-7.61). The odds ratio decreased and the significant difference diminished after controlling for cardiopulmonary fitness. LIMITATIONS: A causal relationship between sarcopenia and physical activity, cardiopulmonary fitness, and physical disability cannot be established because of the cross-sectional nature of study design. CONCLUSIONS: Sarcopenia was associated with physical disability in elderly men. The association between sarcopenia and physical disability was mediated to a large extent by decreased cardiopulmonary fitness. SN - 1538-6724 UR - https://www.unboundmedicine.com/medline/citation/20616117/Sarcopenia_cardiopulmonary_fitness_and_physical_disability_in_community_dwelling_elderly_people_ L2 - https://academic.oup.com/ptj/article-lookup/doi/10.2522/ptj.20090322 DB - PRIME DP - Unbound Medicine ER -