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The precision of human movements within the reach envelope has been poorly described, but could play an important role, particularly in the simulation of human movements or in virtual interactions. We therefore describe an experiment in which virtual target points need to be reached. The targets are visualized in the three-dimensional reach envelope using the HTC-Vive Pro and participant movements are recorded using an optical motion-capturing system. The targets consist of 60 spheres which appear at different ranges, height angles and side angles. We measured 43 test subjects in three test conditions (fast as possible, precise as possible, fast and precise). Two forms of human movement precision were measured: static holding precision and dynamic reaching precision. As a result, the static and dynamic precision is described in terms of the speed, the distance between the hand and the virtual target, as well as the position within the reach envelope. Fast movements seem to be more precise at the end of the movement phase (26 mm deviation). Precise movements result in better dynamic precision at the end of the adjustment (7 mm deviation) and holding precision (5 mm deviation). Future works involve the evaluation of movement strategies.
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