Golf swing performance has been widely studied. Performance parameters based on various mechanical concepts were developed such as X-factor (Kwon et al. 2013), or ground reaction forces (McNitt-Gray et al. 2013), for instance. More recently, parameters based on the capacity to generate motor moments were introduced (Bourgain et al. 2017) to better describe performance. However, this parameter is a composition of the ground reaction forces, body position and club positions. So, its control requires to control each element and to reduce their variabilities. Thus the aim of this publication was to estimate the intra-subject variability of the motor moment and its contributors during a golf swing.
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