Influence of grasping postures on skin deformation of hand
Scientific Reports(2023)
摘要
To investigate the influence of different grasping postures on the hand’s skin deformation, a handheld 3D EVA SCANNER was used to obtain 3D models of 111 women in five postures, including a straight posture and grasping cylinders with various diameters (4/6/8/10 cm). Skin relaxation strain ratio ( λ_p ) and surface area skin relaxation strain ratio ( λ_m ) were used as measures of skin deformation between two landmarks and multiple landmarks, respectively. The effects of grasping posture on skin deformation in different directions were analyzed. The results revealed significant variations in skin deformation among different grasping postures, except for the width of middle finger metacarpal and the length of middle finger’s proximal phalanx. The λ_p increased with decreasing grasping object diameter, ranging from 5 to 18
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