Volume 14, Issue 3 (Summer-In Press 2024)                   PTJ 2024, 14(3): 0-0 | Back to browse issues page


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Yousefian Molla R, Sadeghi H, Kiani A. The Effects of Changing Arm Swing Speed on the 3D Maximum Mechanical Power of the Lower Limb while Walking. PTJ 2024; 14 (3)
URL: http://ptj.uswr.ac.ir/article-1-622-en.html
1- Department of Sports Biomechanics, Central Tehran Branch, Islamic Azad University, Tehran, Iran.
2- Department of Biomechanics and Sports Pathology, Faculty of Physical Education and Sports Science, Kharazmi University, Tehran, Iran.
3- Department of Computer Engineering, Danesh Alborz University, Ghazvin, Iran.
Abstract:   (260 Views)
Purpose: Walking is a complex activity that involves multiple parts of the body, including the lower limb, upper limb, trunk, head, and neck. Contrary to popular belief, walking is not solely related to the forward movement of the legs. Biomechanical analysis, especially in terms of mechanical power, is an essential aspect of studying walking. The purpose of this study was to investigate how changing the speed of arm swings affects the 3D maximum mechanical power of the lower limb during walking.
Methods: In this study, a total of 30 healthy women walked on a force plate path in front of cameras in three states: normal upper limb swing, fast upper limb swing, and slow upper limb swing. The instantaneous muscle power in each lower limb joint and each plane was calculated as the product of the joint moment and its angular velocity. The average mechanical power of the joints was compared using the repeated measurement test, with a significance level of P≤0.05.
Results: The results showed that changing the speed of arm swings had a significant effect on all absorption and production parameters related to the mechanical power of the lower limb joints.
Conclusion: In conclusion, any change in arm movement during walking can affect movement, balance, and the biomechanics of movement.
     
Type of Study: Research | Subject: General
Received: 2024/01/14 | Accepted: 2024/07/25 | Published: 2024/07/25

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