Comparative Study On Take Off Technique: Long Jump To Long Jump Of Half Distance Running Up And The Vaulting Box Practice

To explore the vaulting box practice and the medium-range approach takes off the technology and the long jump takes off in the technical difference, is clear about or the refinement these practice specification, is more scientific for these two special training method the reasonable application in reality to provide uses for reference, this article through the high speed photograph and the picture analysis law, methods and so on mathematical statistic analysis, took off the technical difference to 4 second-level above long jump athletes in the vaulting box practice and the long jump to carry on the comprehensive analysis.The findings indicated:(1) In speed aspect, vaulting box, in is well-grounded the level speed, the lift-off level speed, the lift-off vertical velocity, to leap at the first speed and in swinging leg's angular speed several targets obviously is smaller than the long jump; When the angle aspect, the vaulting box leaps the angle, to be well-grounded two thigh included angles, the swinging leg takes off in the entire process knee angle to be bigger than the target which obviously the long jump corresponds, when the vaulting box lift-off when two thigh included angles, lift-off the hip angle is smaller than a long jump; In time aspect, vaulting box, in the cushion time and the pedal extend in the time obviously to be bigger than the long jump. Overall, the vaulting box and the long jump the difference are big in various targets, the long jump takes off (obtains level speed) to forward be bigger than the vaulting box, but vaulting box upward (obtains vertical velocity) to be bigger than the long jump.(2) One step takes off the vaulting box practice takes one special training method to board up regarding the athlete under consciousness"on to jump"positively ability to have certain function, but its insufficiency is also very obvious: Because"shocking"insufficient, has the limitation regarding the lower limb support system's high grade length strength's development; Meanwhile regarding human body movement"engine"----Hip's practice scope and the practice form also have the obvious limitation. This prompts us, while carries on the vaulting box practice, must corrects this practice through another some reasonable special practices or the improvement vaulting box practice itself possibly the insufficiency which possibly produces to the long jump technology and the take-off ability training. If according to the stage training's duty and athlete's characteristic, elongates the vaulting box spacing, to enhance the vaulting box suitably highly or increases ways and so on approach's distance and speed; May jumps, Shan Zutiao the level of development strength stride primarily and the development vertical strength on step jump the high-jump bar, to jump the deep practice to unify.(3) In this research process discovered that the stature big athlete leaps the angle to be big, obtains the vertical velocity to be big, this is because between the vaulting box distance is invariable, the stature big athlete length of stride is big, the approach is away from a big way, the relative caper distance is small, may transform many level speeds the vertical velocity. Therefore, the vaulting box spacing needs to decide according to athlete's height, otherwise, similarly is jumps the same spacing, the different height's athlete, the different sex's athlete the training effect which obtains in the muscle effort's way and the technical movement aspect can differ from.(4) In this research, the kinematics various parameters difference which the medium-range long jump and the entire journey long jump take off is as a whole small, this explained to a certain extent both take off the way to be similar,but we should also see this object of study entire journey takes off with medium-range takes off the board speed difference to be very small, this also is very possible causes a various parameters difference small substantial clause. Discusses the medium-range long jump and the entire journey long jump takes off the technological gap, will depend on controls the approach speed in the futurology to realize effectively.