جستجوی مقالات مرتبط با کلیدواژه « hip abductor muscle » در نشریات گروه « پزشکی »

Objectives Postural control is the act of maintaining and restoring a better state of balance and proper biomechanics structure in limbs and different parts of the body. Such proper structure exists in two forms namely static and dynamic. Fatigue is one of the factors that affect the postural control and body stability. The purpose of this study was to examine the effect of hip abductor muscle fatigue on the static and dynamic balance in elderly women.
Methods & Materials The participants of this study included 25 elderly and healthy women without any disability (60.24±8.5 years old, weight: 60.58±9.54 kg, height: 153.42±7.65cm). In the first session, the participants underwent static and dynamic balance tests in the normal condition (without fatigue). In the second session, at first, they participated in the hip abductor muscle fatigue protocol followed by static and dynamic balance tests. In addition, t-test was used to compare the results before and after the fatigue.
Results The results indicated that the hip abductor muscle fatigue protocol led to a significant reduction in test scores of balance tests, which included static and dynamic balance. Also, a significant difference was observed between static and dynamic balance before and after fatigue. Overall, the measure of the effect of fatigue protocol was notable in both the tests (PConclusion Reduction in the scores of static and dynamic balance tests showed that the hip abductor muscle fatigue caused an increase in the amount of damage and length of disability in elderly women.

In Closed Chain kinetic problem, Foot Hyperpronation leads to lower extremity weakness. The purpose of this study was to examine the effect of closed chain hip exercise in correcting foot hyperpronation. Thirty male subjects with foot hyperpronation participated in this study and were divided into case and control groups. First foot hyperpronation was measured by goniometer and the strength of hip abductor and lateral rotator muscles assessed using hand-held dynamometer, then the interventional group participated in closed-chain hip rotation strengthening exercises three days a week for six weeks. The control group asked to continue their daily activity. After a 6 weeks, Foot hyperpronation and muscles strength were measured again. Data analysis with paired and independent samples t test was performed (p≤ 0/05). There was significant increase between pre¬ and post-tests in the strength of hip abductor and external rotator muscles and foot hyperpronation in the case group while no differences was found in the control group. Also, both groups at pre-test, had no significant differences in the strength of hip abductor and external rotator muscles and foot hyperpronation however, significant differences were observed in the post test. Body components such as rings are linked together like a chain that each them affects others, thus after performing weight-bearing closed chain hip rotation exercise and increasing muscles strength of proximal lower extremity it can be correct foot hyperpronation in distal lower extremity.