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Biomechanical evaluation of walking and cycling in children

Greca, JPDA, Ryan, J, Baltzopoulos, V and Korff, T (2019) Biomechanical evaluation of walking and cycling in children. Journal of Biomechanics, 87. pp. 13-18. ISSN 0021-9290

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Abstract

Physical activity in children is important as it leads to healthy growth due to physiological benefits. However, a physiological benefit can be partially negated by excessive or unphysiological loads within the joints. To gain an initial understanding into this, the present study sought to compare joint loading between walking and cycling in children. With institutional ethical approval, 14 pre-pubertal children aged 8–12 walked on an instrumented treadmill and cycled on a stationary ergometer. Two methods were used to match physiological load. Cardiovascular loads between walking and cycling were matched using heart rate. Metabolic load was normalised by matching estimates of oxygen consumption. Joint reaction forces during cycling and walking as well as joint moments were derived using inverse dynamics. Peak compressive forces were greater on the knees and ankles during walking than during cycling. Peak shear peak forces at the knee and ankle were also significantly larger during walking than during cycling, independent of how physiological load was normalised. For both cycling conditions, ankle moments were significantly smaller during cycling than walking. No differences were found for knee moments. At equivalent physiological intensities, cycling results in less joint loading than walking. It can be speculated that for certain populations and under certain conditions cycling might be a more suitable mode of exercise than weight bearing activities to achieve a given metabolic load.

Item Type: Article
Uncontrolled Keywords: 0903 Biomedical Engineering, 1106 Human Movement and Sports Sciences, 0913 Mechanical Engineering
Subjects: Q Science > QM Human anatomy
Q Science > QP Physiology
R Medicine > RC Internal medicine > RC1200 Sports Medicine
Divisions: Sport & Exercise Sciences
Publisher: Elsevier
Related URLs:
Date Deposited: 12 Feb 2021 11:29
Last Modified: 12 Feb 2021 11:30
DOI or Identification number: 10.1016/j.jbiomech.2019.01.051
URI: https://researchonline.ljmu.ac.uk/id/eprint/11508

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