Kinematics and kinetics analysis of open attack and quick attack in volleyball

• Main Authors: TENG/CHENG/WEI, 鄧政偉
• Other Authors: Lin, Pao-Cheng Ph.D.
• Format: Others
• Language: zh-TW
• Published: 2008
• Online Access: http://ndltd.ncl.edu.tw/handle/00532419909241654602

碩士 === 臺北巿立體育學院 === 運動科學研究所 === 96 === Abstract The main method to scores in volleyball is the attack, this research is to analyze various body extremities’ Angular Acceleration、joint velocity and CM Acceleration, so we could understand the difference between two groups in kinematics and kinetics. This experiment is use quick attack and open attack player, choose 4 of each from A class collage team. Use the Fastcam high-speed camera to photograph. Set the frequency at 500Hz. And use Kistler, set the sampling frequency at 1000Hz. After collecting the data, use t distribution to discuss the difference between long attacks and quick attacks in kinematics and kinetics, here is the conclusion after discussion: （1）The upper and lower extremities’ angular acceleration of both groups during attack. The forearm, upper arm, torso, thigh, calf and foot of long attackers are much higher than quick attacker. Quick attacker only has higher hand extremity angular acceleration, which match the profile in both groups. （2）Open attacker have much higher extremities’ joint velocity at finger, wrist, elbow, shoulder, hip, knee, malleolus than quick attacker. Only the joint velocity of toe have no obvious difference. The reason might due to the size of Kistler, for exactly jump from the Kistler, have to limit the joint velocity of toe. （3）For the various extremities’ CM acceleration, the long attacker is much higher in hand, upper arm, forearm, torso, calf and foot than quick attacker, only thigh has no obvious difference, but still higher in its mean value. （4）only has the biggest peak value in kinetics data to present reveals the difference, mainly is because the approach takes off time double foot around and at the same time two ways, but affects has the peak value. Impulse and slope also therefore come under the influence. The response time has not reached the difference, then may understand the attack movement with suspends the arm after taking off bowing, is the major effect time of attack factor.