OBJECTIVE The purpose of this study was to investigate whether low-level laser (light) therapy (LLLT) can provide fatigue resistance via maximum repetitions (RM) with an isokinetic dynamometer, and decrease electromyography fatigue index (EFI). BACKGROUND DATA LLLT has been used to increase muscle performance when applied before or after intense exercises. MATERIALS AND METHODS This study w...

background: grip strength is one of the important criteria in determining the physical fitness of all people, especially athletes. the purpose of this study was to compare the hand-grip strength of young highly trained male athletes of different fields and the effect of some anthropometric indices on it. methods: this cross-sectional study was done on 78 athletes of four fields -wrestling, badm...

A low second-to-fourth digit ratio (2D:4D) has been reported to correlate with high performance and athletic potential of an individual in sport. It has been suggested that 2D:4D is a relatively weak predictor of strength and a stronger predictor of efficiency in aerobic exercise. Comparing extreme groups on a continuum of sports performance requiring high power (physical strength) output would...

PURPOSE The aim of this study was to investigate and to compare the effect of a 12-wk period of whole-body vibration training and resistance training on human knee-extensor strength. METHODS Sixty-seven untrained females (21.4 +/- 1.8 yr) participated in the study. The whole-body vibration group (WBV, N = 18) and the placebo group (PL, N = 19) performed static and dynamic knee-extensor exerci...

BACKGROUND The anterior cruciate ligament (ACL) is commonly torn, and surgical reconstruction is often required to allow a patient to return to their prior level of activity. Avoiding range of motion (ROM) loss is a common goal, but little research has been done to identify when ROM loss becomes detrimental to a patient's future function. PURPOSE To determine whether there is a relationship b...