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Most ski boot-binding complexes have a positive ramp angle. This angle is not regulated or reported in the alpine ski industry, but may influence skier balance and pressure control. Therefore joint coordination during a dynamic ski squat task with increasing boot ramp angle (0°, 1°, 2°) in alpine skiers (n=19) was investigated. Average joint coupling angles were significantly different between barefoot and ski conditions, as well as between the three ramp angles during the upward phase of a squat. The percentage of squat with uncoordinated knee-ankle joint movements tended to increase in ski conditions versus barefoot conditions, and coordinated hip-knee movement was reduced with alpine boot-binding-ski complexes. These differences in joint coordination and average coupling angles may impact skier balance and pressure control across the ski while skiing.