Study on the Knees Going Down 15°as Basic Gesture Location in Fitness Aerobics

To avoid being injured in the process of fitness aerobics,based on document research,questionnaire and the observation of the basic gesture with the knees knelt down15°(the beginning position and the revivification of the knee movement.),the authors divided the members of fitness aerobics club into different groups.While the examinations are fulfilled to do with the different peak torques of the angular velocity when the knee muscles are made tense and loose and to deal with different muscle electrophoresis in the form of different rectos knee degrees by taking physical education measures in essence.As a basic gesture in body-building and fitness aerobics,the way to make people go down on their knees to the degree of15while standing will relieve their burthen in the course,which will also strengthen the quadriceps muscles of beginners.In con-clusion,this gesture can be taken as a fairly protective one for the trainers' safe knee movement.