The biomechanical function of the wrist is widely assessed by measuring the range of motion (RoM) in two separate orthogonal planes: flexion–extension (FE) and radioulnar deviation (RUD). However, the two motions are coupled. The aim of this study is to compare wrist circumduction with FE and RUD RoM in terms of representativeness of the kinematic requirements for performing activities of daily living (ADL). To this end, the wrist motion of healthy participants was measured while performing maximum RoM in FE and in RUD, circumduction, and thirty-two representative ADL. Active and functional RoM (ARoM and FRoM) were computed in each plane, the evolving circumduction curves were adjusted to ellipses, and intensity maps representing the frequency of the coupling angles in ADL were plotted, both per ADL and globally for both hands. Ellipses representing different percentages of coupling angles in ADL were also plotted. Wrist circumduction fits the coupling angles measured in ADL better than ARoM or FRoM. As a novelty, quantitative data for both circumduction and the coupling angles required in ADL are provided, shedding light on the real biomechanical function requirements of the wrist. Results might be used to quantify mobility reduction and its impact on the performance of ADL, globally and per ADL, to enhance rehabilitation strategies, as well as in clinical decision-making, robotics, and prostheses.

通过测量两个单独的正交平面内的运动范围（RoM）：屈伸（FE）和尺骨尺偏（RUD），可以广泛评估手腕的生物力学功能。但是，两个动作是耦合的。这项研究的目的是比较FE和RUD RoM腕关节环行术在执行日常活动（ADL）的运动学要求方面的代表性。为此，测量健康参与者的腕部运动，同时在FE和RUD，包皮环切术和32个代表性ADL中执行最大RoM。在每个平面中计算活动RoM和功能RoM（ARoM和FRoM），将演变的外接曲线调整为椭圆形，并绘制代表每个ADL和两只手的代表ADL中耦合角频率的强度图。还绘制了表示ADL中不同角度的耦合角度的椭圆。手腕外环比ARoM或FRoM更适合用ADL测量的耦合角。作为一种新颖性，提供了ADL中所需的外接角度和耦合角度的定量数据，从而减轻了手腕真正的生物力学功能要求。结果可用于量化移动性下降及其对ADL性能的影响（全球和每个ADL），以增强康复策略以及在临床决策，机器人技术和假肢中。揭示了手腕真正的生物力学功能要求。结果可用于量化移动性下降及其对ADL性能的影响（全球和每个ADL），以增强康复策略以及在临床决策，机器人技术和假肢中。揭示了手腕真正的生物力学功能要求。结果可用于量化流动性下降及其对ADL的全球和每个ADL性能的影响，以增强康复策略以及在临床决策，机器人和假肢中的应用。