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BME Seminars - Phil Cheetham


Seminar announcement flyer

Our first "Open Your Mind" seminar is scheduled for Friday, October 3rd and will be held in Amphi Fournel, Arts et Métiers ParisTech (151 boulevard de l’Hôpital, 75013 Paris) between 1:30 pm and 3 pm. For this first conference, a lecture on "the relationship of club handle twist velocity to club speed, driving accuracy, wrist velocities and body posture at impact" will be given by Phil Cheetham, a Senior Biomechanist and Director of the TPI Biomechanics Advisory Board and Senior Sport Technologist and Biomechanist for the United States Olympic Committee.

The seminar will be held in Amphi Fournel, Arts et Métiers ParisTech (151 boulevard de l’Hôpital, 75013 Paris) between 1:30 pm and 3 pm on Friday, October 3rd.

 

Abstract:

During the downswing golfers roll their forearms and twist the club handle in order to square the club face into impact. World class golfers have swings with a range of club handle twist velocities (HTV) from very slow to very fast. The purpose of this research was to discover the relationship between HTV at impact and selected body and club biomechanical characteristics during a driver swing. Three-dimensional motion analysis methods were used to capture the swings of 94 tour professionals.  Pearson product-moment correlation was used to determine if a correlation existed between HTV and certain selected biomechanical characteristics. The total group was also divided into two sub-groups of 32, one group with the fastest HTV (Hi-HTV) and the other with the slowest HTV (Lo-HTV). Single factor ANOVAs were completed for HTV and each selected biomechanical parameter using a family-wise significance level of p < .05 to find if differences exist between the two groups. The Hi-HTV group had a higher mean clubhead speed at impact than the Lo-HTV group; 48.9 m/s versus 48.0 m/s but this difference was not statistical significance. The Lo-HTV group had a higher mean driving accuracy percentage than the Hi-HTV group, 63.9% versus 62.9%, but this difference was also not statistically significance. Lead wrist supination velocity at impact was found to be significantly different between groups with the Hi-HTV group having a higher velocity. Lead wrist extension velocity at impact, while not being significantly different between groups was found to be positive in both groups. This means that the lead wrist is extending at impact.  Lead wrist ulnar deviation, lead wrist release and trail elbow extension velocities at maximum were not significantly different between groups. Pelvis rotation, thorax rotation, pelvis side bend and pelvis rotation at impact were all significantly different between groups, with the Lo-HTV group being more side bent and more open at impact. These results suggest that world class golfers can successfully use either the low or high HTV technique.  From a coaching perspective it is important to be aware of the body posture and wrist motion differences between the two techniques.


Arts et Métiers ParisTech
ESPCI
Mines
Telecom
ParisTech
Université Paris Descartes
Master BME Paris