Below is a collection of key academic articles that I have benefited from in my studies on the construction of golf club equipment, with a focus on the longitudinal and radial flex of golf shafts.
Click to download any article:
Understanding the Role of Shaft Stiffness in the Golf Swing, MacKenzie, S.J., Sprigings, E.,J., Sports Engineering, (2009) Download
The Influence of Golf Shaft Stiffness on Grip and Clubhead Kinematics, MacKenzie, S.J., Boucher, D., Journal of Sports Sciences, (2016) Download