Validating force-estimating insoles for calculating centre of pressure and vertical ground reaction forces during occupational tasks
研究验证了三腔力估计鞋垫在职业任务中测量地面反作用力和压力中心的有效性，开发了加权算法和漂移校正方法，结果显示鞋垫可提供有效估计，适用于现场生物力学测量。
Force estimating insoles offer a mobile alternative to in-ground force plates for measuring ground reaction forces (GRFs) and centre of pressure (CoP) in occupational settings. However, their validity in measuring GRFs for occupational tasks has yet to be validated and CoP estimation approach has yet to be developed. This study developed this method for a three-compartment force estimating insole and introduced a force drift correction approach. Thirty-nine participants completed lifting, packaging, palletising, and above shoulder work tasks while wearing insoles on force plates. A weighted algorithm and linear drift correction were developed and compared against force plate data. The CoP method resulted in root mean squared errors (RMSEs) between 1.7 and 3.4 cm. Drift correction reduced ground reaction force RMSE by approximately 28 N. These findings suggest that three-compartment force insoles may be able to provide valid CoP and force estimates, making them a prospective tool for in-field biomechanical measurements of occupational tasks.