The Dialectical Relationship Between Body Curvature And Speed In Speed Skipping

With the development of rope skipping exercise,international and national jump rope competitions held frequently.Chinese jump rope team in the international Rope Skipping games,speed jump rope,there has been an absolute advantage,there has been a large number of excellent speed jump rope athletes.However,the speed jump rope in their technology is not uniform,judging from competition,including sitting position jump rope and Pike position skipping two technologies.Both skip posture adopted by the people,with the development of rope skipping exercise,competition is increasingly fierce,Pike jump number increased year by year.Due to the Pike jump rope can shorten the radius around the rope,from the analysis on the theory of circular motion,you can speed up the rope speed.However,Pike jump rope to bend the body has been in a State,especially lumbar,thoracic and cervical parts bent for a long time,can affect the normal growth and health of athletes,was questioned by many people.Therefore,skipping body positioning factors and research is very important.Paper will speed skipping project 30 seconds and 3 minutes double feet Exchange jumped in the body bent degrees and skipping speed of dialectical relationship as research object,random extraction 2015 and 2016 national skipping League points station game and finals total three times contest in the gets Qian eight name or Qian six name of excellent athletes(children group and juvenile group of 30 seconds and 3 minutes single shake jumped)as survey object.Used literature information method,and questionnaire survey method,and video analysis method and mathematical statistics method,variety research method,through analysis,and argument,and reasoning and judge,to obtained following conclusion:1.on speed skipping in the several related concept for has defined,main including speed skipping,and 30 seconds single shake jumped,and 3 minutes single shake jumped,and straight body skipping posture,and natural straight body skipping posture,and flexor body skipping posture and tips stands posture,.2.through research and analysis,identifies restricting the core elements of the skipping rope speed,respectively,shake jump rope alternating frequency,body posture,feet often,shake jump serve and rope and rope moves in the air.3.from effect speed skipping speed and youth health development angle,on speed skipping in the of body bent degrees for has analysis,to obtained straight body body posture and excessive flexor body body posture will to spine of security brings hidden,also restricted with skipping speed of upgrade,is not desirable of,then creative to proposed has speed skipping reasonable flexor body posture of concept,that speed skipping in the of reasonable body bent is refers to to hip waist joint mainly,spine bent degrees control in normal physiological bent limit range within,Keep the angle of the upper body and the ground at around 30+150,proper knees Terrier head,lower body weight,and maintaining a flexor of the hip rebound motion.4.using materialistic dialectical on the of views and principle,from kinematics,and health learn,and aesthetics and value orientation,angle,on skipping in the of straight body posture,and excessive flexor body posture and reasonable flexor body posture for has pros and cons two aspects of discusses,proposed has speed skipping project should used reasonable flexor body posture of assertion,and analysis has using reasonable flexor body posture has of following several advantage: reasonable flexor body skipping is speed skipping development of mainstream direction;reasonable flexor body skipping can reasonable avoid spine within stress of bad effect;reasonable flexor body skipping meet human movement development law;reasonable flexor body skipping will led skipping project beauty of shaping;reasonable flexor body also can reached shortened rope long,and upgrade skipping speed of effect;reasonable flexor body also is guarantee skipping process in the physical effective distribution of ideal body State.This study,a significant amount of research and analysis,innovatively presented "reasonable Pike position jump rope" concept,and this concept was defined and interpreted,introduced rope skipping in a natural sitting position,and solve puzzles in the speed jump rope very well coaches and athletes skipping battle for position.Results for optimal jump rope development,enhance the speed rope skipping activities,competitiveness in the international arena,promoting the healthy growth of juvenile jump rope,have a very important practical significance.