319 The relationship between foot impact acceleration and landing impact on the ball sport movements

Abstract

The purpose of this study was to investigate the relationship between foot impact acceleration and landing impact on the ball sport movements. 5 subjects performed 5 movements (jogging, cutting, sidestep, take-off and landing) that often used in ball sports. Ground reaction force (GRF) and impact acceleration were recorded. The result showed the timing of impact peak acceleration was substantially consisted with that of vertical GRF 1^<st>peak. Therefore the relationship between peak acceleration value and vertical GRF 1^<st>peak value on each movement was investigated. Strong correlations were found on all movements. As the result of this study showed that landing impact that have measured by force plate can be estimated by accelerometer, allowing impact measurement in field.