نوع مقاله : مقاله پژوهشی
نویسندگان
1 دانشجوی دکتری، گروه بیومکانیک و آسیب شناسی ورزشی، دانشکده تربیت بدنی و علوم ورزشی، دانشگاه خوارزمی، تهران، ایران
2 دانشیار، دانشکده تربیت بدنی و علوم ورزشی، دانشگاه خوارزمی، تهران، ایران
3 دکترای تخصصی حرکات اصلاحی و آسیب شناسی ورزشی، دانشگاه خوارزمی، تهران، ایران
4 استادیار/دانشکده تربیت بدنی دانشگاه علامه تربیت بدنی
5 استادیار گروه تربیت بدنی و علوم ورزشی، دانشکده تربیت بدنی و علوم ورزشی، دانشگاه خوارزمی، تهران، ایران
چکیده
کلیدواژه‌ها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
Background and Aims: People with postural malalignment such as tibiofemoral varus (TFRV) may be associated with movement patterns dysfunction during functional activities that are associated with non-contact lower extremity injuries. In relation to these people, it is recommended that the design of training protocols should be done with the aim of controlling and improving functional dysfunctions. Therefore, the aim of the present study was to investigate the effect of posterior X taping (PXT) and real-time external feedback (RTF) on kinematic and electromyographic indices of the lower extremity during the single-leg squat task in individuals with TFRV.
Materials and Methods: Electromyographic and kinematic information of the lower extremity of 24 recreational athletes with TFRV (PXT = 12, RTF = 12) were recorded while participants in both groups performed single-leg squat 5 times consecutively and rested two minutes between two different conditions (before and after the intervention). To analyze the data, two-way analysis of variance and Bonferroni statistical tests were used at the significant level of p≤0.05.
Results: The results of the present study showed an increase in gluteus medius muscle activity (p = 0.013) in the eccentric phase and a decrease in hip adduction (p = 0.001) in maximal knee flexion after the intervention compared to before the intervention in the RTF group, reduction of external tibiofemoral rotation of the knee after intervention compared to before intervention in maximal knee flexion (p = 0.034), eccentric phase (p = 0.001) and concentric phase (p = 0.001) in PXT group, Decreased ankle pronation after intervention compared to before intervention in eccentric phase (p = 0.001) and concentric (p = 0.001) in PXT group and in eccentric phase (p = 0.004) in RTF group, Increased ankle abduction after intervention compared to before intervention in concentric phase (p = 0.001), eccentric (p = 0.001) and maximum knee flexion (p = 0.004) in PXT group and in eccentric phase In the RTF group (p = 0.006), there was a decrease in ankle flexion dorsiflexion at maximum knee flexion after the intervention compared to before the intervention (p = 0.017) in the RTF group.
Conclusion: The results of the present study showed that both PXT and RTF interventions can affect the kinematic parameters of individuals with TFRV malalignment in different ways and can be used to immediately correct postural defects during the single-legged squat task.
کلیدواژه‌ها [English]
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