Hip and knee joint loading during vertical jumping and push jerking

Cleather, Daniel J. and Goodwin, Jon E. and Bull, Anthony M. J. (2013) Hip and knee joint loading during vertical jumping and push jerking. Clinical Biomechanics, 28 (1). pp. 98-103. ISSN 02680033

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Official URL: http://dx.doi.org/10.1016/j.clinbiomech.2012.10.00...

Abstract

BACKGROUND: The internal joint contact forces experienced at the lower limb have been frequently studied in activities of daily living and rehabilitation activities. In contrast, the forces experienced during more dynamic activities are not well understood, and those studies that do exist suggest very high degrees of joint loading. METHODS: In this study a biomechanical model of the right lower limb was used to calculate the internal joint forces experienced by the lower limb during vertical jumping, landing and push jerking (an explosive exercise derived from the sport of Olympic weightlifting), with a particular emphasis on the forces experienced by the knee. FINDINGS: The knee experienced mean peak loadings of 2.4-4.6×body weight at the patellofemoral joint, 6.9-9.0×body weight at the tibiofemoral joint, 0.3-1.4×body weight anterior tibial shear and 1.0-3.1×body weight posterior tibial shear. The hip experienced a mean peak loading of 5.5-8.4×body weight and the ankle 8.9-10.0×body weight. INTERPRETATION: The magnitudes of the total (resultant) joint contact forces at the patellofemoral joint, tibiofemoral joint and hip are greater than those reported in activities of daily living and less dynamic rehabilitation exercises. The information in this study is of importance for medical professionals, coaches and biomedical researchers in improving the understanding of acute and chronic injuries, understanding the performance of prosthetic implants and materials, evaluating the appropriateness of jumping and weightlifting for patient populations and informing the training programmes of healthy populations. Copyright © 2012 Elsevier Ltd. All rights reserved.

Item Type: Journal Article
Uncontrolled Keywords: Musculoskeletal modeling -- Inverse dynamics -- Joint contact forces -- Vertical jumping -- Weightlifting -- Strain (Physiology) -- Mathematical models -- Statistical models
Subjects: 600 Technology > 612 Human physiology
700 The arts; fine & decorative arts; recreation > 796 Athletic & outdoor sports & games
School/Department: School of Sport, Health and Applied Science
Depositing User: Catherine O'Sullivan
Date Deposited: 24 Jun 2013 12:59
Last Modified: 15 May 2015 13:05
URI: http://research.stmarys.ac.uk/id/eprint/403

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