Study On The Bounce Characteristic Of China Women Beach Volleyball Athletes

Sum up the bouncing characteristics of the athletes,and found the difference with that of foreign athletes in the bounce,for improving training ways so to enhance the effectiveness of training has a practical significance,and as the same time it is also one concrete manifestation of the China's scientific and technological thinking of the Olympics is.This article mainly used the methods of record analyze,SMEG measurement to study some players of country team,BA-YI team and BSU volleyball team,the results are:1 The average height of China's women beach volleyball players isl.80m,the average weight is 67kg,the average age is 22.31 years,and compared with volleyball player in China,and foreign beach volleyball athletes,China's women beach volleyball players have the same height,weight characteristics,it shows that the women's beach volleyball team has the same form(height,weight) basis compared with the world's best beach volleyball team.But the average age is less than that of foreign top ranked player and China's women beach volleyball players.The height and weight ratio higher than that of our volleyball players,which is lower than foreign beach volleyball athletes.2 With a clear height of the combination is different from indoor volleyball beach volleyball is an obvious characteristics.China's women's beach volleyball team is an ideal combination of the type.3 The impact factors on bouncing off of China's women beach volleyball players are the take off power,timing,speed,lower limb muscle strength,back muscle strength,arm and the way properties of the sand,sun,wind,and so on.4 There are 5 types of the take-off of China's women beach volleyball players in spike,with the exception of two-step run-up,the use of back off and running in take-off more;there are more than 70%athletes have the characteristics action of Observation other's defense space before attack;there are more than 40%of the take-off block is "jumping off",and the characteristics of which is a clear distinction.5 The over time of 8 China's women beach volleyball players in spike is 0.53s,the gap is obvious compared with foreign excellent athletes;the height of center of gravity raise for the 0.34m,the spike height is about 2.8-2.9m,and Compared to China's women's volleyball spike height 3.13m,the gap is significantly.6 China's women beach volleyball players' energy supply system and the relative proportions in the game is almost the same as volleyball players;in the game bounce for the average load board to take off 51 times,spiking 80%of the take-off point in the network from 1 to 1.5m;the main range of take-off is 3.2m in diameter. 7 Beach volleyball players' bounce different from the volleyball players:beach volleyball' block of the players are not jumping to the highest jump,but steady movement,the stable body in the air,fast take-off,as well as the rapid turn around after the block.8 The national team on BAYI and 7 of the team beach volleyball player of the characteristics of the surface electromyography are more stable,bouncing leg to show the advantages of stability,muscle training,technical spike and block movement more stable, but between the individual characteristics of the surface electromyography Not exactly the same.Beach volleyball players and volleyball players bouncing on the surface of the lower limbs muscle EMG is not exactly the same characteristics.9 Quadriceps in the beach in bouncing play a major role in the muscles,the sand is ranked player bouncing the common characteristics of the muscle,the gastrocnemius muscle, tendon-muscle membrane and a half,and the gluteus maximus is the personality differences. Gastrocnemius,semitendinosus muscle membrane and a half may be too strong impact on beach volleyball athletes ability to bounce.