同相還是反相？高爾夫揮桿身體肢段間的協調策略

Golf swing was to be coordinating the actions of upper body parts with lower body parts appears to conform to an allocentric principle. With respect to the skill of golf swing, a good player keeps the head absolutely still from start to finish. The purpose of this research is to analyze the head-strategy coordination pattern of golf full swing between golfers and different types of golf club. Participants were 4 expert golfers (handicap: 6, 7, 8, and 18). Using the Gypsy Gyro (IGS190) device with the measurement of 120 Hz to collect the full swinging action of each participant golfers when they swung the golf clubs in driver, and short iron (Iron 9). The results showed that during the BS and the DS, PC1 almost explains 80% of the amount. Analyzing the contest of PC1 shows that the correlation between neck, left shoulder and hip joints are consistent up to 0.6. Principal component analysis revealed that highly skilled golfers use an egocentric coordination pattern: Moving the head and BS, DS in a tightly coupled but opposing-direction no matter which clubs were use. Instead, less skilled golf coordinated the movement of head and BS, DS in an allocentric coordination pattern. There were two kinds of swing strategies existed in players when they swung driver and 9 Iron.There were constant –swing pattern and adapting-swing pattern