大專女子舉重選手抓舉與挺舉提鈴期之動力學分析

A kinetics analysis of the snatch and clean & jerkduring the pull phase among college womenweightlifters

目的：探討大專女子舉重選手，不同組別（前三名與非前三名）抓舉與挺舉提鈴期之最大肌力、3秒斜率及衝量與1秒斜率及衝量，進而找出女子舉重選手在抓、挺舉上搏提鈴期的最佳提鈴方式。方法：使用張力計連接電腦，收取自願參與本實驗之96學年大專盃舉重錦標賽，不分級別獲得前三名與非前三名之18名女子舉重選手，槓鈴拉至臏骨下緣處（提鈴期）維持0~3秒，測試過程中可允許受測者休息（最多兩分鐘），抓舉與挺舉交叉各測三次。結果：抓舉和挺舉的1秒斜率（抓舉：前三VS前三，1.0±0.3vs0.9±0.2，挺舉：前三VS非前三，1.1±0.2vs0.9±0.2）與3秒衝量（抓舉：前三VS非前三，0.7±0.1vs0.6±0.3，挺舉：前三0.7±0.1VS非前三，0.7±0.1vs2.8±0.8）達P<.05顯著性差異。槓鈴曲線力量表現方面，能在1秒內瞬間將力量爆發出來的選手，在本賽事中均獲得前三名。結論：依研究結果推測，女子舉重選手，提鈴期最大發力率大概都發生在1秒左右，瞬間能將力量爆發出來的選手，比賽成績會較佳。

Purpose: To investigate the maximum strength， 3-second slope and impulse， and 1-second slopeand impulse of the snatch and clean & jerk during the pull phase in different groups of collegewomen weightlifters (grouping: the top three winners and non-top three) to find out the best way topull the weight for women weightlifters. Methods: Eighteen women weightlifters voluntarilyparticipated in this study. They were contestants (the top three winners and non-top three fromdifferent weight classes) of the College Cup Women’s Weightlifting Championship in 1998. Atensionmeter was attached to a computer for collecting data from the subjects who pulled thebarbell up to the lower edge of the patella (the pull phase) and held for 0-3 seconds. Subjects wereallowed to rest (two minutes top) during the test. The snatch and clean & jerk were tested rotatinglythree times each. Results: Both the snatch and clean & jerk revealed significant differences (P