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Titolo:
Sagittal-hip-muscle power during walking in old and young able-bodied men
Autore:
Sadeghi, H; Prince, F; Zabjek, KF; Allard, P;
Indirizzi:
Hop St Justine, Res Ctr, Montreal, PQ H3T 1C5, Canada Hop St Justine Montreal PQ Canada H3T 1C5 r, Montreal, PQ H3T 1C5, Canada Univ Montreal, Dept Kinesiol, Montreal, PQ, Canada Univ Montreal MontrealPQ Canada al, Dept Kinesiol, Montreal, PQ, Canada Tarbiat Moallem Univ, Dept Kinesiol, Minist Sci Res & Technol, Tehran, Iran Tarbiat Moallem Univ Tehran Iran Minist Sci Res & Technol, Tehran, Iran
Titolo Testata:
JOURNAL OF AGING AND PHYSICAL ACTIVITY
fascicolo: 2, volume: 9, anno: 2001,
pagine: 172 - 183
SICI:
1063-8652(200104)9:2<172:SPDWIO>2.0.ZU;2-S
Fonte:
ISI
Lingua:
ENG
Soggetto:
PRINCIPAL COMPONENT ANALYSIS; GROUND REACTION FORCES; NERVOUS-SYSTEM; LEVEL WALKING; GAIT; AGE; PATTERN; VARIABILITY; KINEMATICS; KINETICS;
Keywords:
gait; elderly; continuous data analysis; principal-component analysis;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Social & Behavioral Sciences
Citazioni:
38
Recensione:
Indirizzi per estratti:
Indirizzo: Sadeghi, H Hop St Justine, Res Ctr, Montreal, PQ H3T 1C5, Canada Hop St Justine Montreal PQ Canada H3T 1C5 , PQ H3T 1C5, Canada
Citazione:
H. Sadeghi et al., "Sagittal-hip-muscle power during walking in old and young able-bodied men", J AGING P A, 9(2), 2001, pp. 172-183

Abstract

In this study, tasks of the hip in elderly and young gait were identified using principal-component analysis (PCA). Discrepancies between older and younger participants for hip-flexor and -extensor action during stance were also investigated. PCA was applied to the sagittal-hip-muscle-power curves of participants. Three principal components (PCs) were retained far furtheranalysis. A t test revealed that all measures of gait spatiotemporal parameters were significantly lower in the older participants (p < .05). The first PC for both groups extracted the largest variation and described hip-power action during midstance. The second and third PCs in the older participants highlighted the role of the hip extensors and flexors during weight acceptance, late stance, and pull-off. The corresponding PCs for the younger participants were mainly associated with hip-extensor/flexor action during pull-off and weight acceptance. The results indicate that the hip-extensor/flexor muscles are mainly responsible for balance control in elderly gait but contribute to both balance control and propulsion in the gait of younger individuals.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 31/03/20 alle ore 09:55:45