Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Lower limb muscle power relationships in bilateral able-bodied gait
Autore:
Sadeghi, H; Sadeghi, S; Allard, P; Labelle, H; Duhaime, M;
Indirizzi:
Hop St Justine, Ctr Rech, Human Movement Lab, Montreal, PQ H3T 1C5, CanadaHop St Justine Montreal PQ Canada H3T 1C5 b, Montreal, PQ H3T 1C5, Canada Hop St Justine, Marie Enfant Hosp, Rehabil 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 H3C 3J7, Canada Univ Montreal Montreal PQ Canada H3C 3J7 ol, Montreal, PQ H3C 3J7, Canada Tarbiat Moallem Univ, Minist Sci Res & Technol, Dept Kinesiol, Tehran, Iran Tarbiat Moallem Univ Tehran Iran & Technol, Dept Kinesiol, Tehran, Iran Concordia Univ, Dept Elect & Comp Engn, Montreal, PQ H3G 1M8, Canada Concordia Univ Montreal PQ Canada H3G 1M8 n, Montreal, PQ H3G 1M8, Canada Hop St Justine, Dept Orthopaed Surg, Montreal, PQ H3T 1C5, Canada Hop St Justine Montreal PQ Canada H3T 1C5 g, Montreal, PQ H3T 1C5, Canada McGill Univ, Shriners Hosp Children, Div Orthopaed, Montreal, PQ H3A 2T5, Canada McGill Univ Montreal PQ Canada H3A 2T5 paed, Montreal, PQ H3A 2T5, Canada
Titolo Testata:
AMERICAN JOURNAL OF PHYSICAL MEDICINE & REHABILITATION
fascicolo: 11, volume: 80, anno: 2001,
pagine: 821 - 830
SICI:
0894-9115(200111)80:11<821:LLMPRI>2.0.ZU;2-V
Fonte:
ISI
Lingua:
ENG
Soggetto:
KNEE AMPUTEES; WALKING; PATTERNS; VARIABILITY; ASYMMETRIES; SYMMETRY;
Keywords:
biomechanics; gait analysis; muscle powers; principal component analysis; canonical correlation analysis;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Citazioni:
39
Recensione:
Indirizzi per estratti:
Indirizzo: Sadeghi, H Hop St Justine, Ctr Rech, Human Movement Lab, 3175 Cote St Catherine, Montreal, PQ H3T 1C5, Canada Hop St Justine 3175 Cote St Catherine Montreal PQ Canada H3T 1C5
Citazione:
H. Sadeghi et al., "Lower limb muscle power relationships in bilateral able-bodied gait", AM J PHYS M, 80(11), 2001, pp. 821-830

Abstract

Objectives: The purpose of this study was to test the hypothesis that limbpropulsion is mainly associated with the interaction of a number of musclepower bursts developed throughout the stance phase and that the control actions are mainly achieved by the contralateral limb through different power-burst interactions. We also hypothesized that the power activities of the propulsion limb would be related to those of the control limb. Design: Sixty gait trials of 20 subjects with dominant right hands and right legs were chosen for analysis. Each trial represents a performance of anable-bodied gait. Data were assessed using an eight-camera, high-speed, video-based system synchronized to two force plates. The muscle powers and their related mechanical energies were calculated at each joint and in each plane of the lower limbs by use of an inverse dynamic technique. The Pearsoncorrelation method was used to determine the relationships within each limb by use of the data identified by principal component analysis, whereas a canonical correlation analysis was performed to illustrate the interaction between the limbs. Results: Gait propulsion was an activity initiated by the hip shortly after heel-strike and maintained throughout the stance phase. Control was the main task of the left limb as evidenced by the power absorption bursts at the hip and knee. The left limb power generations were generally secondary tocontrol activities and were possibly involved in adjustments to correct the other limb's propulsion. Interlimb interaction further emphasized the functional relationship between forward progression and control tasks developed by each limb and highlighted the importance of the frontal and transverseplane actions during gait. Conclusion: These results do not support the hypothesis that the ankle wasa major contributor to forward progression.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 19/01/20 alle ore 00:56:53