1 引言在自行车运动中,运动员膝关节和踝关节伸屈肌力量的大小、比例等量值与运动成绩密切相关。多年来科研人员和教练员一直在利用各种方法去探索寻求提高肌肉力量的新途径。今天随着科学技术的发展,新一代智能仪器的出现进一步提高了去研究探索的新手段。1999年我们利用美 1 Introduction In cycling, athletes knee and ankle extensor flexor muscle strength, size and proportion of the magnitude and exercise performance are closely related. Over the years, researchers and coaches have been using various methods to explore new ways to seek muscle strength. Today, with the development of science and technology, the emergence of a new generation of smart instruments has further improved the new means of research and exploration. In 1999 we used the United States