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Titolo:
Age-related declines in knee extensor strength and physical performance inhealthy Hispanic and Caucasian women
Autore:
Schiller, BC; Casas, YG; Tracy, BL; DeSouza, CA; Seals, DR;
Indirizzi:
Univ Colorado, Dept Kinesiol & Appl Physiol, Boulder, CO 80309 USA Univ Colorado Boulder CO USA 80309 & Appl Physiol, Boulder, CO 80309 USA Univ Colorado, Hlth Sci Ctr, Dept Med, Div Cardiol, Boulder, CO 80309 USA Univ Colorado Boulder CO USA 80309 ed, Div Cardiol, Boulder, CO 80309 USA Univ Colorado, Hlth Sci Ctr, Dept Med, Div Geriatr Med, Boulder, CO 80309 USA Univ Colorado Boulder CO USA 80309 Div Geriatr Med, Boulder, CO 80309 USA
Titolo Testata:
JOURNALS OF GERONTOLOGY SERIES A-BIOLOGICAL SCIENCES AND MEDICAL SCIENCES
fascicolo: 12, volume: 55, anno: 2000,
pagine: B563 - B569
SICI:
1079-5006(200012)55:12<B563:ADIKES>2.0.ZU;2-K
Fonte:
ISI
Lingua:
ENG
Soggetto:
OLDER MEXICAN-AMERICANS; NURSING-HOME RESIDENTS; LUIS-VALLEY HEALTH; MUSCLE STRENGTH; SOCIOECONOMIC-STATUS; FUNCTIONAL STATUS; SKELETAL-MUSCLE; ELDERLY PEOPLE; RURAL COLORADO; MEN;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Social & Behavioral Sciences
Life Sciences
Citazioni:
45
Recensione:
Indirizzi per estratti:
Indirizzo: Seals, DR Univ Colorado, Dept Kinesiol & Appl Physiol, Campus Box 354, Boulder, CO 80309 USA Univ Colorado Campus Box 354 Boulder CO USA 80309 , CO 80309 USA
Citazione:
B.C. Schiller et al., "Age-related declines in knee extensor strength and physical performance inhealthy Hispanic and Caucasian women", J GERONT A, 55(12), 2000, pp. B563-B569

Abstract

Hispanic women may undergo greater age-related reductions in physical functional capacity compared with Caucasian women. If so, a greater rate of decline in muscle strength with age could contribute. We tested this hypothesis in 82 healthy sedentary Caucasian (n = 37) and Hispanic (n = 45) adult women aged 21-78 years of similar socioeconomic status. Absolute one-repetition maximum (1-RM) strength of the knee extensors (KE) declined with advancing age in the Caucasian (r = -.55,p <.01) and Hispanic (r = -.45,,p <.01) women; the rates of decline were similar in the two groups (-7% to 8% decade(-1) ,p =.60). KE strength normalized for thigh fat-free mass (FFM) also declined with age in the Caucasian (r = -.52,p <.01) and Hispanic (r =.41,p <.01) semen, the rates of decline being similar (-6% to 7% decade(-1),p =.66). For all functional performance tasks (10-m walk, stair ascent, stair descent, and chair stand), performance time increased with advancing age (meanof four tasks vs age: Caucasian, r =.64, p <.01; Hispanic, r =.56, p <.01). Absolute and normalized KE 1-RM were inversely related to the mean time for the four performance tasks (r = -.34 to -.58, all p <.01). Normalized KE1-RM was the best independent predictor of the age-related decline in taskperformance in both groups. These cross-sectional findings do not support the hypothesis that Hispanic ethnicity per se is associated with a greater decline in KE strength and performance tasks associated with KE strength inhealthy women.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 03/04/20 alle ore 18:50:48