Volume 11, Issue 3 (Spring 2025)
IJRN 2025, 11(3): 20-30 |
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Parsa R, Jafarnezhadgero A, Piri E. The effect of using double-density soles on the loading rate, impulse, free moment, and ground reaction forces in adolescent volleyball players with pronated feet during running and landing. IJRN 2025; 11 (3) :20-30
URL: http://ijrn.ir/article-1-872-en.html
URL: http://ijrn.ir/article-1-872-en.html
Associate Professor of Sports Biomechanics, Department of Sports Biomechanics, Faculty of Educational Sciences and Psychology, University of Mohaghegh Ardabili, Ardabil, Iran.
Abstract: (441 Views)
Introduction: The ankle joint is one of the most vulnerable joints in the body due to weight bearing. Pronated foot is one of the most common complications of the lower limbs. The present study aimed to determine the effect of double-density soles on the loading rate, impulse, free moment, and ground reaction forces in adolescent volleyball players with pronated feet during running and landing.
Methods: The statistical sample of the present research includes 30 boys and girls placed in two groups. The Bartek force plate made in the USA was used to record the ground reaction forces. The present study investigated loading rate, impulse, free moment, and ground reaction forces. The statistical method in this research was performed using two-way analysis of variance with repeated measures, and all statistical analyses were performed using Excel software and SPSS version 23.
Results: The results showed that the effect of the insole factor in the group of boys on the values of the time to reach the initial peak of the vertical ground reaction force during running was a significant difference (P=0.021). Also, the results showed that the effect of the insole factor on the loading rate index during running was statistically significant (P=0.044). The effect of gender on ground reaction forces during landing in three directions, vertical force, lateral-medial, and anterior-posterior, was statistically significant (P<0.05).
Conclusion: It seems that using double-density insoles by increasing the time to reach the peak of ground reaction forces and reducing the impact loading rate reduces the risk of lower limb injuries in teenage boy volleyball players with pronated feet during running.
Methods: The statistical sample of the present research includes 30 boys and girls placed in two groups. The Bartek force plate made in the USA was used to record the ground reaction forces. The present study investigated loading rate, impulse, free moment, and ground reaction forces. The statistical method in this research was performed using two-way analysis of variance with repeated measures, and all statistical analyses were performed using Excel software and SPSS version 23.
Results: The results showed that the effect of the insole factor in the group of boys on the values of the time to reach the initial peak of the vertical ground reaction force during running was a significant difference (P=0.021). Also, the results showed that the effect of the insole factor on the loading rate index during running was statistically significant (P=0.044). The effect of gender on ground reaction forces during landing in three directions, vertical force, lateral-medial, and anterior-posterior, was statistically significant (P<0.05).
Conclusion: It seems that using double-density insoles by increasing the time to reach the peak of ground reaction forces and reducing the impact loading rate reduces the risk of lower limb injuries in teenage boy volleyball players with pronated feet during running.
Type of Study: Research |
Subject:
Rehabilitation in Sport Sciences
Received: 2024/01/26 | Accepted: 2024/09/28 | Published: 2025/05/4
Received: 2024/01/26 | Accepted: 2024/09/28 | Published: 2025/05/4
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