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An Instrumented Grip Handle for Golf Clubs to Measure Forces and Moments Exerted by Each Hand During Swing Motion

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Abstract

An instrumented grip handle was designed to simultaneously measure the forces and moments exerted by each hand on the handle during golf swing. Eleven pairs of strain gages were attached on the surface of an aluminum bar inserted under separated grip covers. The device was calibrated under static conditions and revealed good agreement between applied and calculated loads. The output of the sensors was converted into forces and moments by resolving static equilibrium equations. A professional golf player participated in this study and performed golf swings with several clubs. Reflective-markers on the body segment endpoints and on the clubs were captured by VICON motion system with 8 cameras operating at 250Hz. The results obtained in this study were: (1) long axial load of shaft affected the sensor coefficients of the device, and (2) internal forces and moments that do not cause the motion of the club were observed in the swings.

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... Strain gauges and pressure sensors can be used to measure the contact forces and moments exerted by the golfer on the grip. Koike et al. [37] reported good agreement between these measurements and values calculated using inverse dynamic models (Sect. 3.1). ...
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