Wed, Oct 2, 2024
Volume 14, Issue 4 (Autumn-In Press 2024)
PTJ 2024, 14(4): 0-0 |
Back to browse issues page
Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:
Zamankhanpour M, Sheikhhoseini R, Piri H, Asadi_Melerdi S, Abdollahi S, E. Hewett T. Altered Lower Extremity Intersegmental Coordination in Female Athletes with Dynamic Knee Valgus: A Case-control Study. PTJ 2024; 14 (4)
URL: http://ptj.uswr.ac.ir/article-1-659-en.html
URL: http://ptj.uswr.ac.ir/article-1-659-en.html
Mina Zamankhanpour1 
, Rahman Sheikhhoseini * 1, Hashem Piri2 , Shakiba Asadi_Melerdi3 , Sajjad Abdollahi4 , Timothy E. Hewett5
, Rahman Sheikhhoseini * 1, Hashem Piri2 , Shakiba Asadi_Melerdi3 , Sajjad Abdollahi4 , Timothy E. Hewett5
1- Department of Corrective Exercise & Sports Injury, Allameh Tabataba'i University, Tehran, Iran.
2- Faculty of Physical Education and Sport Sciences, Allameh Tabataba’i University, Tehran, Iran.
3- Department of Philology, Philosophy, and Sports, Otto Von Guericke University, Magdeburg, Germany.
4- Department of Sport Biomechanics, Faculty of Sports Sciences, Bu-Ali Sina University, Hamedan, Iran.
5- Biomechanics Laboratories and Orthopaedic & Sports Medicine Research, Department of Orthopaedics, Marshall University, Joan C. Edwards School of Medicine, Huntington, WV 25701, USA.
2- Faculty of Physical Education and Sport Sciences, Allameh Tabataba’i University, Tehran, Iran.
3- Department of Philology, Philosophy, and Sports, Otto Von Guericke University, Magdeburg, Germany.
4- Department of Sport Biomechanics, Faculty of Sports Sciences, Bu-Ali Sina University, Hamedan, Iran.
5- Biomechanics Laboratories and Orthopaedic & Sports Medicine Research, Department of Orthopaedics, Marshall University, Joan C. Edwards School of Medicine, Huntington, WV 25701, USA.
Abstract: (301 Views)
Background: Among female athletes, dynamic knee valgus (DKV) is one of the most common injuries especially anterior cruciate ligament (ACL) injuries. This study compared lower limb coordination in athletes with and without DKV during walking.
Methods: In this case-control study, 32 recreational female athletes were recruited in two groups, 17 demonstrating DKV (DKV) and 15 not demonstrating DKV (WDKV). A motion analysis system was used to gather kinematic data at 200 Hz. The participants were educated to walk barefoot on an 8-meter pathway comfortably. The segmental angles in each motion plane were then calculated using MATLAB. Mean absolute relative phase (MARP) and Deviation phase (DP) were extracted for the pelvic-thigh, thigh-shank, and shank-foot segments. A two-sample T-test was used to compare the mean values of MARP and DP in the gait stance and swing phases. The significance level is 95% (P<0.05).
Results: Female athletes with DKV displayed distinct intersegmental coordination patterns between the thigh-shank, pelvis-thigh, and shank-foot in their lower extremities during walking, different in comparison to athletes without DKV (P<0.05).
Conclusion: This study showed that female athletes with DKV exhibit distinct intersegmental coordination patterns in the pelvis-thigh, shank-foot, and thigh-shank during walking. These findings indicate that for corrective protocols or risk reduction measures for athletes with dynamic knee valgus (DKV), significant attention should be paid to the intersegmental coordination patterns of the lower extremity joints. Establishing stability and coordination between the proximal and distal segments of all lower limb joints is equally important to address the intersegmental coordination patterns at the knee to decrease the risk of ACL injuries in DKV-afflicted athletes.
Methods: In this case-control study, 32 recreational female athletes were recruited in two groups, 17 demonstrating DKV (DKV) and 15 not demonstrating DKV (WDKV). A motion analysis system was used to gather kinematic data at 200 Hz. The participants were educated to walk barefoot on an 8-meter pathway comfortably. The segmental angles in each motion plane were then calculated using MATLAB. Mean absolute relative phase (MARP) and Deviation phase (DP) were extracted for the pelvic-thigh, thigh-shank, and shank-foot segments. A two-sample T-test was used to compare the mean values of MARP and DP in the gait stance and swing phases. The significance level is 95% (P<0.05).
Results: Female athletes with DKV displayed distinct intersegmental coordination patterns between the thigh-shank, pelvis-thigh, and shank-foot in their lower extremities during walking, different in comparison to athletes without DKV (P<0.05).
Conclusion: This study showed that female athletes with DKV exhibit distinct intersegmental coordination patterns in the pelvis-thigh, shank-foot, and thigh-shank during walking. These findings indicate that for corrective protocols or risk reduction measures for athletes with dynamic knee valgus (DKV), significant attention should be paid to the intersegmental coordination patterns of the lower extremity joints. Establishing stability and coordination between the proximal and distal segments of all lower limb joints is equally important to address the intersegmental coordination patterns at the knee to decrease the risk of ACL injuries in DKV-afflicted athletes.
Keywords: Biomechanics, Athletes, Dynamic Knee Valgus, Coordination, Intersegmental coordination patterns
Type of Study: Research |
Subject:
General
Received: 2024/07/14 | Accepted: 2024/07/30 | Published: 2024/10/1
Received: 2024/07/14 | Accepted: 2024/07/30 | Published: 2024/10/1
Send email to the article author
| Rights and permissions | |
 |
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. |
This is an open access article distributed under the terms of the Creative Commons Attribution License (CC-By-NC), which permits use, distribution, and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.
Contact Information
