Journal ArticleDOI
A Study of Lower-Limb Mechanics During Stair-Climbing
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TLDR
When going up and down stairs large moments are present about weight-bearing joints, but descending movements produce the largest moments, which are considerably higher than those produced during level walking.Abstract:
The motions, forces, and moments at the major joints of the lower limbs of ten men ascending and descending stairs were analyzed using an optoelectronic system, a force-plate, and electromyography. The mean values for the maximum sagittalplane motions of the hip, knee, and ankle were 42, 88, and 27 degrees, respectively. The mean maximum net flexion-extension moments were: at the hip, 123.9 newton-meters going up and 112.5 newton-meters going down stairs; at the knee, 57.1 newton-meters going up and 146.6 newton-meters going down stairs; and at the ankle, 137.2 newton-meters going up and 107.5 newton-meters going down stairs. When going up and down stairs large moments are present about weight-bearing joints, but descending movements produce the largest moments. The magnitudes of these moments are considerably higher than those produced during level walking.read more
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Position and orientation in space of bones during movement: anatomical frame definition and determination.
TL;DR: This paper deals with methodological problems related to the reconstruction of the position and orientation of the human pelvis and the lower limb bones in space during the execution of locomotion and physical exercises using a stereophotogrammetric system.
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Plyometric Training in Female Athletes Decreased Impact Forces and Increased Hamstring Torques
TL;DR: This program was designed to decrease landing forces by teaching neuromuscular control of the lower limb dur ing landing and to increase vertical jump height and may have a significant effect on knee stabilization and prevention of serious knee injury among female athletes.
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Human movement analysis using stereophotogrammetry. Part 1: theoretical background.
TL;DR: An effort to systematize the different theoretical and experimental approaches to the problems involved and related nomenclatures is needed to facilitate data and knowledge sharing, and to provide renewed momentum for the advancement of human movement analysis.
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A comparison of the accuracy of several hip center location prediction methods
TL;DR: The purpose of this study was to estimate the accuracy with which this rotational method could estimate hip center location in a series of live subjects, and compare that to the accurary that could be obtained by the methods of Andriacchi's group and Tylkowski's group in the same subjects.
Falls in older people: risk factors and strategies for prevention.
TL;DR: A physiological profile approach to falls risk assessment and prevention and strategies for prevention - from research into practice are put into practice.
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