The Research For The Compare Between Three Stretching Methods For Javelin Throwers' Flexibility Of The Shoulders And Pevils

Flexibility can be described as the ability which may highly moved through the body muscles and joints. Flexibility is one of the key points involved in the javelin thrower's competition conditioning and javelin throwing itself also calls for great ability of shoulder and pelvis. During the running up, finally throwing out and other technical steps, shoulder and coax have to go over certain movements within several body axes. The above mentioned that the compete level of flexibility may result to different performances of javelin throwing technical, so study the effects from various of flexibility skills to javelin throwers and compare the different advance by various of stretching skills may deserve some practical purport. The whole study based on the experiment towards three kinds of stretching skills, meanwhile the study takes three-dimension photograph and investigations as research tools. After the compare through dynamic stretching, static stretching and PNF stretching the results are following below:PNF stretch training can evidently promote the flexibility and during the study PNF stretching can gradually advance the stretch ability step by step. Static stretching can improve the flexibility but the effects need too much time and the results couldn't compare with PNF. Dynamic stretching only affects the flexibility a little and the improvements are too limited. In summary the study suggest that:PNF stretch training should be used as the majority skills for javelin throwers'warm up; skills of PNF stretching and dynamic stretching should be combined and taken to javelin throwers'specialty flexibility training; static stretch training skills are better to be practiced in javelin thrower's cool down proportion after training.