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Journal of Healthcare Engineering
Volume 2017, Article ID 6375976, 6 pages
https://doi.org/10.1155/2017/6375976
Research Article

Influence of Gait Speeds on Contact Forces of Lower Limbs

1Department of Kinesiology, Shenyang Sport University, Shenyang 110102, China
2Key Laboratory of Impression Evidence Examination and Identification Technology, Criminal Investigation Police University of China, Shenyang 110854, China
3Ningwu Country Senior High School, Ningwu 036700, China
4Li Ning Sports Science Research Centre, Beijing 101111, China

Correspondence should be addressed to Xin Wang; moc.621@xwgnaw_nihs

Received 23 February 2017; Revised 27 April 2017; Accepted 30 April 2017; Published 9 July 2017

Academic Editor: Wenxin Niu

Copyright © 2017 Xin Wang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

While walking with fast speed aims to promote health and fitness of individuals, the potential risk on lower limb joint loading across walking speed is still unknown. In order to determine the joint contact force loading associated with different walking speeds, fifteen young male and fifteen female participants performed barefoot walking across different speeds (regular = 1.1 m/s, medium = 1.4 m/s, and fast = 1.7 m/s). The synchronized motion and ground reaction force (GRF) data were captured by Codamotion capture system and AMTI force platform. All kinematics and GRF information were input to the AnyBody musculoskeletal model to determine 3-dimensional knee contact forces. The results showed that increased walking speed was associated with a greater proximal-distal and anterior-posterior GRF during early impact phase, implying that the joint stability is more demanding at higher walking speed conditions (). In addition, higher proximal-distal and anterior-posterior knee contact forces were found when participants were walking at higher speeds (). Therefore, the risk of knee cartilage and ligament damage associated with the increased knee contact forces should require further attention.