期刊
JOURNAL OF QUANTITATIVE ANALYSIS IN SPORTS
卷 5, 期 1, 页码 -出版社
WALTER DE GRUYTER GMBH
DOI: 10.2202/1559-0410.1134
关键词
kinematic analysis; golf; X-Factor; hip to shoulder differential
It is often postulated that an increased hip to shoulder differential angle ('X-Factor') during the early downswing better utilises the stretch-shorten cycle and improves golf performance. The current study aims to examine the potential relationship between the X-Factor and performance during the tee-shot. Seven golfers with handicaps between 0 and 10 strokes comprised the low-handicap group, whilst the high-handicap group consisted of eight golfers with handicaps between 11 and 20 strokes. The golfers performed 20 drives and three-dimensional kinematic data were used to quantify hip and shoulder rotation and the subsequent X-Factor. Compared with the low-handicap group, the high-handicap golfers tended to demonstrate greater hip rotation at the top of the backswing and recorded reduced maximum X-Factor values. The inconsistencies evident in the literature may suggest that a universal method of measuring rotational angles during the golf swing would be beneficial for future studies, particularly when considering potential injury.
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