【摘要】 研究结果证明:运动员膝关节等速肌力的各项指标均明显大于对照组青年的肌肉力量,P<0.001。在不同项目运动员中,股四头肌力最强为举重运动员,腘绳肌力最大的为短跑运动员。而足球运动员的股四头肌和腘绳肌力相对较弱。膝关节肌肉耐力最好为自行车运动员,举重运动员的耐力则最差。更多还原

【Abstract】 The strength and endurance of quadriceps and hamstring muscles have been considered important in sports injury prevention and causation. The purpose of this study was to determine the isokinetic strength and endurance of those muscles of 54 elite male athletes (mean age 21.6 years) and 35 healthy males served as a control group (mean age 20.1 years) using a Cybex Ⅱ~+ system. Three testing speeds (60°/sec, 180°/sec and 240°/sec) were selected.The results indicated that the strength values of the quadriceps and hamstring muscles were significantlly higher in athletes than that in the control group (P<0.001).It was also found that the strength and endurance of quadriceps and hamstring muscles were different among the athletes, due to different sporting events. The torques of quadriceps were the strongest in weightlifting——3.63 Nm/kg (60/sec) 2.49 Nm/kg (180/sec) and 2.01 Nm/kg (240/sec). The strength values of hamstring were the highest in sprinter, 1.93 Nm/kg (60°/sec), 1.58 Nm/kg (180°/sec) and 1.31 Nm/kg (240°/sec). However, the strength values of quadriceps and hamstring muscles were the lowest in soccer, 3.10 Nm/kg, 1.60 Nm/kg (60°/sec), 2.01 Nm/kg, 1.13 Nm/kg (180°/sec) and 1.68 Nm/kg, 0.87 Nm/kg (240°/sec). The cyclist had the best endurance ratio of knee muscles, quadroceps 73.9% and hamstring 71.5%. The endurance ratio, however, was the lowest in weightlifting, quadriceps 54.2%, hamstring 46.3%.更多还原