Comparison of Range of Motion and Strength of Hip Muscles in Female Athletes with and without Dynamic Knee Valgus
| Autor: | Farzaneh Saki, Farzaneh Ramezani |
|---|---|
| Jazyk: | perština |
| Rok vydání: | 2020 |
| Předmět: | |
| Zdroj: | پزشکی بالینی ابن سینا, Vol 27, Iss 2, Pp 100-109 (2020) |
| Druh dokumentu: | article |
| ISSN: | 2588-722X 2588-7238 |
| Popis: | Background and Objective: Medial Knee movement during exercise causes disorder of normal body alignment and import stress on the tissues. Increased knee valgus during exercise is one of the risk factors for lower extremity injuries. With this background in mind, the current study aimed to make a comparison between healthy women and women with dynamic knee valgus in terms of isometric strength of the muscles and the range of motion of the hip. Materials and Methods: This case-control study was conducted on 20 healthy female athletes and 20 athletes with dynamic knee valgus who participated in regular exercise for at least 2 years. The maximum isometric strength of extensor, flexor, adductor, abductor, as well as external and internal hip rotators, was measured with a hand dynamometer (kg). Moreover, the active range of motion of extension, flexion, adduction, abduction, as well as hip external and internal rotation, was measured with a standard goniometer (degree). Independent t-test and Multivariate Analyses of Variance were used to determine differences in strength and range of motion between groups. Results: As illustrated by the obtained results, the group with dynamic knee valgus had less extensor (P=0.006), hip external rotator muscle strength (P=0.029), and hip external rotation range of motion (P=0.005), compared to the healthy group. Nonetheless, no significant difference was observed between other variables in the two groups. Conclusion: Based on the results of the present study, training programs with a focus on the strength and range of motion of the hip joint can improve the kinematics of the knee joint in the frontal plane. |
| Databáze: | Directory of Open Access Journals |
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