Ergonomics International Journal (EOIJ)

ISSN: 2577-2953

Research Article

Effects of Physical Activity on Lower Extremity Muscle Pump and Volume Changes

Authors: Li Y*

DOI: 10.23880/eoij-16000327

Abstract

The objective of the research was to explore the effects of human motion type and angles of inclination on lower limb muscle activity and lower extremity volume change. The muscle activity was quantified by the time domain of the EMG signal. The change in calf circumference and in foot volumeter helped assess the fluid shifts in the lower extremity and the lower limb volume. The results found a significant main effect of motion type on lower extremity muscle activity. Specifically, running was revealed to lead to greater muscle contractions. Also, the calf circumference increase was significantly larger after running than after walking. Calf circumference was significantly greater after running on an inclined surface than on a level surface. Based on the results, inferences were drawn regarding the pattern of fluid shifts in the lower extremity. The research provides valuable inspiration and deep insight into rehabilitation, physiotherapy, and fatigue prevention as well as in the design of prosthetics, compression tights, sports shoes and industrial jobs.

Keywords: EMG; Lower Extremity Volume; Motion Type; Inclination

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