[Effect of low shoe heel height on the trunk muscular activity among young healthy females]

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. 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. Muscle activity in first and second groups at external oblique was 9.72 +/- 3.15 microvolt and 7.87 +/- 2.47 microvolt and at rectus abdominal was 11.60 +/- 3.58 microvolt and 9.81 +/- 3.46 microvolt respectively. Muscle activity before and after using standard shoe heel height was significant [p<0.05]. It seems that using lower heel shoes height increase the trunk muscle activity

[Effect of functional brace on threshold of motion sense in patients with Anterior Aruciate Ligament tear]

Anterior Cruciate Ligament [ACL] tear is one of the most common injuries at knee joint. Threshold of motion sense included inputs that are received by mechanical receptors at dynamic position. The objection of present study was to find the effect of functional brace on the Kinesthesia motion sense in patients with ACL rupture. In this Quasi- experimental study, 20 patients with ACL tear, with aging range between 18 to 44 years old were recruited. Patients were selected in a simple non probability sampling manner. Using Continuous passive motion for testing the Kinesthesia motion sense, as a dependent variable. Data was analyzed with Paired t-test and Colmogrof-Smirnof tests. Threshold of motion sense at affected knee before and after bracing was 3.93 +/- 1.67, 4.45 +/- 1.86 in open eyes and 3.82 +/- 1.61, 4.13 +/- 1.96 in closed eyes [P<0.05]. This study showed that the functional brace did not play in important role in the improvement of threshold of motion sense in patients with ACL tear