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Showing 2 results for Muscle Activity
Majdoleslam B (phd), Salavati M (phd), Ebrahimi E (phd), Kazemi M (md), Esmaeiljah Aa (md), Baghaei Roodsari R (msc),
Volume 13, Issue 3 (10-2011)
Abstract
Background and Objective: Anterior cruciate ligament (ACL) tear is one of the most common injuries at knee joint. This study was done to evalute the effect of reconstruction surgery on hamstring reflex in patients with ACL tear. Materials and Methods: In this Quasi- experimental study, 30 patients (16 males, 14 females) with ACL tear, with mean age of 26.52±8.72 years old were recruited during 2007. Patients were selected in a non probability sampling manner. The Kinsiological Electromyography and trauma mechanism were used for testing the hamstring reflex. Muscle activity were measured as a dependent variable. Data were analyzed with Paired T-Test, ICC, SEM and K-S tests. Results: Hamstring reflex in affected knee and after reconstruction surgery was 73.25±3.22 and 47.35±3.85, respectively. This difference was significant (P<0.05). Conclusion: Reconstruction surgery in patients with ACL tear at acute phase is effective in improvement of hamstring reflex.
Mousavi Me (md), Forough B (md), Bahramizadeh M (msc), Arazpoor M (msc), Veiskarami M (msc), Moghadami Ar (msc),
Volume 13, Issue 4 (12-2011)
Abstract
Background and Objective: The reduction of shoe heel height can increase abdominal muscles activity. This study was conducted to evaluate the effect of low shoe heel height on the trunk muscle activity in young healthy females. Materials and Methods: In this quasi- experimental (Pre-post ) study, 48 healthy females were evaluated at University of social welfare and rehabilitation at 2009-2010. Females were selected in a non probability sampling manner and divided randomly into two groups. Subjects in the first group (12 females) were used low heel height shoes(less than 3.4 cm) for six months. The second group (12 female) was used standard heel shoes height (3.5-5 cm) for six months. After the end of the first step of study, females in first group were used standard heel shoes height (3.5-5 cm) for six months. The Kinsiologic Electromyography instrument was used to test the Electromyography magnitude of rectus abdominal and external oblique activity. Data was analyzed with Paired and independent T student and Kolmogorrov-Smirnov tests. Results: Muscle activity in first and second groups at external oblique was 9.72±3.15 μν and 7.87±2.47 μν and at rectus abdominal was 11.60±3.58 μν and 9.81±3.46 μν respectively. Muscle activity before and after using standard shoe heel height was significant (p<0.05). Conclusion: It seems that using lower heel shoes height increase the trunk muscle activity.
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