تكرارپذيري و اعتبار خط كش منعطف ايراني در اندازه گيري قوس كمر

Reliability and Validity of Iranian Flexible ruler In Lumbar Spine Curvature Measurement

The purpose of this study was to investigate the effect of massage on the knee extensor muscles fatigue following submaximal isokinetic contractions. Ten male games players (age 22.9 ± 1.7 years, body weight 75.2 ± 6.5 kg, height 182.2 ± 4.2 cm, all values mean ± SD) volunteered to participate in two experimental sessions (massage and rest conditions) one week apart and at the same time of day. On each test day, subjects were performed submaximal isokinetic concentric efforts of the knee extensors at 60°/s, across a 90° range of motion. The subjects relaxed during the passive flexion phase. Fatigue was judged to have occurred when the torque output dropped below 50% PT for three consecutive movements. Subjects then either received massage on the knee extensors or rested for a ^5 minute duration. Recovery from fatigue was quantified using peak torque (PT), vertical jump test and perceived recovery scale (VAS). Statistical analysis was conducted using SPSS version 13.0. The data was analyzed using a repeated measure ANOVA and t-test. PT and vertical jump significantly declined following fatigue protocol. There was no significant difference in PT and vertical jump test value change between rest and massage conditions. There was a significant increase in fatigue VAS at the end of fatigue protocol. There was a significant difference in fatigue VAS between massage and rest condition. This study supports the use of massage for helped the subjective feeling of fatigue but there was not enough evide