Comparison of the Effect of STOP-X and STOP-X -Ankle Mobilization Exercises on Knee Alignment and Proprioception in Soccer Players with Dynamic Knee Valgus
Poster Presentation
Paper ID : 2115-SSRC
Authors
Department of Exercise Rehabilitation, Faculty of Sport Sciences, Bu-Ali Sina University, Hamedan, Iran
Abstract
Background: Dynamic knee valgus (DKV) is a movement pattern that increases the risk of lower limb injuries. Changes in lower limb alignment, proprioception, and ankle range of motion can have detrimental effects on other body parts and increase the rate of injuries.
Objective: This study aimed to compare the effectiveness of STOP-X and STOP-X -ankle mobilization protocols on knee alignment and proprioception in soccer players with DKV.
Methods: A randomized controlled trial was done involving 30 boy soccer players aged 12 to 14 with DKV. Participants were randomly assigned to two groups: STOP-X and STOP-X -ankle mobilization exercises. Both groups received their exercise protocols for eight weeks. Proprioception was evaluated using a goniometer at a 45-degree angle of active knee extension, while knee flexion and valgus angle were evaluated using the single-leg landing test. Data were collected before and after the intervention and analyzed using a repeated measures analysis of variance and dependent t-tests for intra-group comparisons.
Results: Statistical analysis indicated a significant interaction between time and group for proprioception and knee alignment (p<0.05) in both groups. Intra-group comparisons showed a significant decrease in knee valgus angle and joint reposition error, as well as a significant increase in knee flexion angle (p<0.05) in both groups. The combined group, which combined ankle mobilization exercises into the STOP-X protocol, demonstrated greater improvements in the investigated variables.
Conclusion: The results suggest that the combined protocol exercises have a greater impact on knee alignment and proprioception in soccer players with DKV. This comprehensive approach targets multiple joints of the lower limbs and enhances the range of motion. Therefore, the combined exercises are recommended for the rehabilitation of soccer players with DKV.
Objective: This study aimed to compare the effectiveness of STOP-X and STOP-X -ankle mobilization protocols on knee alignment and proprioception in soccer players with DKV.
Methods: A randomized controlled trial was done involving 30 boy soccer players aged 12 to 14 with DKV. Participants were randomly assigned to two groups: STOP-X and STOP-X -ankle mobilization exercises. Both groups received their exercise protocols for eight weeks. Proprioception was evaluated using a goniometer at a 45-degree angle of active knee extension, while knee flexion and valgus angle were evaluated using the single-leg landing test. Data were collected before and after the intervention and analyzed using a repeated measures analysis of variance and dependent t-tests for intra-group comparisons.
Results: Statistical analysis indicated a significant interaction between time and group for proprioception and knee alignment (p<0.05) in both groups. Intra-group comparisons showed a significant decrease in knee valgus angle and joint reposition error, as well as a significant increase in knee flexion angle (p<0.05) in both groups. The combined group, which combined ankle mobilization exercises into the STOP-X protocol, demonstrated greater improvements in the investigated variables.
Conclusion: The results suggest that the combined protocol exercises have a greater impact on knee alignment and proprioception in soccer players with DKV. This comprehensive approach targets multiple joints of the lower limbs and enhances the range of motion. Therefore, the combined exercises are recommended for the rehabilitation of soccer players with DKV.
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