Multi-digit manipulation of a circular object

摘要: INTRODUCTION Manipulation of a circular object is common in daily activities such as opening door knob, jar cap, etc. Previous studies multi-digit prehension mainly focused on prismatic precision grip, i.e. the grip by tips digits which thumb and fingers oppose each other (reviewed Zatsiorsky, Latash 2004). While several previous have addressed manipulation objects, they been limited to force exerted single digit (Fowler et al. 1999, Kinoshita 1996). As any manipulation, studied task mechanically redundant. In particular, due kinetic redundancy, sharing total among individual cannot be predicted solely from mechanical considerations. This study focuses digit-tip forces moments during torque/moment production fixed object.