Reduction of frontal-plane hip joint reaction force via medio-lateral foot center of pressure manipulation: a pilot study.
نویسندگان
چکیده
Footwear-generated biomechanical manipulation of lower-limb joints has been shown to influence lower-limb biomechanics. Numerous studies report the influence of such interventions on the knee, however little is known about the influence of these interventions on the hip. The present study analyzed kinetic and kinematic changes about the hip of 12 healthy young males who underwent biomechanical manipulation utilizing the APOS biomechanical device (APOS-Medical and Sports Technologies Ltd., Herzliya, Israel) allowing controlled foot center of pressure manipulation. Subjects underwent gait testing in four para-sagittal device configurations: Medial, lateral, neutral, and regular shoes. In the medial configuration, subjects demonstrated no change in step width (i.e., distance between right and left foot center of pressure), however inter-malleolar distance significantly increased. Likewise with the medial setting, greater hip abduction was recorded, while hip adduction moment and joint reaction force decreased significantly. We speculate that subjects adopt a modified gait pattern aimed to maintain constant base of support. As a result, hip abductor muscle moment arm increases and adduction moment and joint reaction force decreases. To the best of our knowledge this is the first study to show this relationship. These results contribute to the understanding of lower-limb biomechanics and warrant further investigation.
منابع مشابه
Reduction of hip joint reaction force via medio-lateral foot center of pressure manipulation in bilateral hip osteoarthritis patients.
Loading/excessive loading of the hip joint has been linked to onset and progression of hip osteoarthritis. Footwear-generated biomechanical manipulation in the frontal plane has been previously shown in a cohort of healthy subjects to cause a specific gait adaption when the foot center of pressure trajectory was shifted medially, which thereby significantly reduced hip joint reaction force. The...
متن کاملReduction of Hip Joint Reaction Force via Medio - lateral Foot Center of Pressure 1 Manipulation in Bilateral Hip Osteoarthritis Patients 2 3
متن کامل
Neuromuscular response of hip-spanning and low back muscles to medio-lateral foot center of pressure manipulation during gait.
BACKGROUND Footwear-generated medio-lateral foot center of pressure manipulation has been shown to have potential positive effects on gait parameters of hip osteoarthritis patients, ultimately reducing maximum joint reaction forces. The objective of this study was to investigate effects of medio-lateral foot center of pressure manipulation on muscle activity of hip-spanning and back muscles dur...
متن کاملبررسی اثرات خستگی عضلات زانو و مچ پا بر روی نیروی گشتاوری مفصل مچ پا و مرکز اعمال نیروی کف پایی در طی فاز نامتعادل ایستادن یک پایی
Background: The aim of this study was to investigate the effect of muscle fatigue on ankle joint moment and center of pressure during single-leg stance, perturbed by forward or backward platform perturbations. Methods : In this semi-experimental study fatigue induced to knee muscles by using an ergometer (monark). Surface elecromyographic signals were recorded from knee muscles during maxim...
متن کاملControl of knee coronal plane moment via modulation of center of pressure: a prospective gait analysis study.
OBJECTIVES Footwear-generated biomechanical manipulations (e.g., wedge insoles) have been shown to reduce the magnitude of adduction moment about the knee. The theory behind wedged insoles is that a more laterally shifted location of the center of pressure reduces the distance between the ground reaction force and the center of the knee joint, thereby reducing adduction moment during gait. Howe...
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عنوان ژورنال:
- Journal of orthopaedic research : official publication of the Orthopaedic Research Society
دوره 33 2 شماره
صفحات -
تاریخ انتشار 2015