The principle of superposition in human prehension.
The experimental evidence supports the validity of the principle of superposition for multi-finger prehension in humans. Forces and moments of individual digits are defined by two independent commands: "Grasp the object stronger/weaker to prevent slipping" and "Maintain the rotational equilibrium of the object". The effects of the two commands are summed up.
Zatsiorsky
Vladimir M
VM
Department of Kinesiology, The Pennsylvania State University, State College, PA 16802-5702 (USA).
Latash
Mark L
ML
Gao
Fan
F
Shim
Jae Kun
JK