![]() ![]() ![]() Golfer Specific Responses to Shaft Stiffness The Influence of Clubhead Mass on Clubhead and Golf Ball Kinematics ![]() The influence of golf shaft stiffness on grip and clubhead kinematics He has conducted, presented, and published research on putting, shaft dynamics, 3D mechanics of the swing, shoe fitting, and the role of center of pressure in the golf swing. His research encompasses both optimal sport movement patterns as well as the most advantageous training techniques. FrancisXavierUniversity and his research interests lie in the optimization of human movement with a strong emphasis on sport performance. He is currently an associate professor in the Department of Human Kinetics at St. ![]() MacKenzie completed a PhD in Sports Biomechanics at the University of Saskatchewan, which focused on 3D forward dynamics simulation of the golf swing. To find your ideal Launch Conditions check out Liam Mucklow “Launch Doctor”ĭr. While everybody had higher kick velocity with the more flexible shaft, not everybody had higher club head speed with the more flexible shaft because as that shaft kicks forward, it actually tends to slow down the hands. There is a variable called kick velocity which shows how much speed is added to club head speed due to the shaft flexing (it’s the rate that the club moves from lagging to leading in the swing at impact in particular). There’s a general thought that the more flexible shaft will give you more club head speed. Shafts don’t have a systematic effect on club head speed. In general, especially with the driver, you’re going to want to have a higher launch angle with more spin if you have a slower club head speed and typically if you play a more flexible shaft, that’s going to help those parameters. This is why you see the recommendation for slower swinging golfers to play more flexible shaft. The two aspects of that are lead and toe down deflection, so the club is drooping and leading relative to the grip (see graphic). During the swing flex in a shaft causes deflection. ![]()
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