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The X-Factor and Its Relationship to Golfing Performance

Author

Listed:
  • Cole Michael H

    (Queensland University of Technology)

  • Grimshaw Paul N

    (University of South Australia)

Abstract

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.

Suggested Citation

  • Cole Michael H & Grimshaw Paul N, 2009. "The X-Factor and Its Relationship to Golfing Performance," Journal of Quantitative Analysis in Sports, De Gruyter, vol. 5(1), pages 1-21, January.
    • Handle: RePEc:bpj:jqsprt:v:5:y:2009:i:1:n:9
    DOI: 10.2202/1559-0410.1134
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