The Motion Analysis For Getting Off The Mark With The Style Of Crouch And The Experimental Analysis On The Angle Of The Back Block

The aim to get off the mark is to move one's body to break away from stillness quickly and effectively. On the base of the provision about the regulation of the track and field competition, the blocks have to be used in a regularity short race. In the style of the crouch for sprint ,the use of the block could employ one to get more strength .Beside that it could be adjusted by the yourself expediently. So that every one is familiar with it. The angle of the block could be accommodated anytime. It provides convenience for the racer to set the angle of the block. The block conclude two parts , it called the front block and the back block. There aren't enough files about it ,so the purpose of this essay is to do some research as well as analysis for it.But, how to look for a suitable angle of the block is the problem waiting for settling. The issue exists universally on all the level of the racers. Three angles, 30°, 45°, 60°, were used in the experiment. The results showed that it was unscientific to accommodate the block belong to the sense. The racers can't achieve their best speed at the angle of block which they felled comfortable. It happened on the excellence sportsman as well. The sprint depends on the time even to seconds. Yet we haven't got more documents about the angle of block. It may be one of the important factors which draggle the level of the sprint object. Therefore, the purpose of the research was to solve this problem.