Biomechanical Characteristics of Hand Coordination in Grasping Activities of Daily Living

Hand coordination can allow humans to have dexterous control with many degrees of freedom to perform various tasks in daily living. An important contributing factor to this important ability is the complex biomechanical architecture of the human hand. However, drawing a clear functional link between...

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Bibliographic Details
Published in:PloS one 2016-01, Vol.11 (1), p.e0146193-e0146193
Main Authors: Liu, Ming-Jin, Xiong, Cai-Hua, Xiong, Le, Huang, Xiao-Lin
Format: Article
Language:English
Subjects:
Activities of daily living
Analysis
Architecture
Biomechanics
Coordination
Evolution
Fingers & toes
Grasping
Grasping (robotics)
Hand
Hand eye coordination
Handedness
Human mechanics
Kinematics
Manufacturing
Muscles
Physiological aspects
Principal components analysis
Researchers
Robotics
Statistical analysis
Statistical analysis of data
Structure-function relationships
Studies
Taxonomy
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Summary:Hand coordination can allow humans to have dexterous control with many degrees of freedom to perform various tasks in daily living. An important contributing factor to this important ability is the complex biomechanical architecture of the human hand. However, drawing a clear functional link between biomechanical architecture and hand coordination is challenging. It is not understood which biomechanical characteristics are responsible for hand coordination and what specific effect each biomechanical characteristic has. To explore this link, we first inspected the characteristics of hand coordination during daily tasks through a statistical analysis of the kinematic data, which were collected from thirty right-handed subjects during a multitude of grasping tasks. Then, the functional link between biomechanical architecture and hand coordination was drawn by establishing the clear corresponding causality between the tendinous connective characteristics of the human hand and the coordinated characteristics during daily grasping activities. The explicit functional link indicates that the biomechanical characteristic of tendinous connective architecture between muscles and articulations is the proper design by the Creator to perform a multitude of daily tasks in a comfortable way. The clear link between the structure and the function of the human hand also suggests that the design of a multifunctional robotic hand should be able to better imitate such basic architecture.
ISSN:1932-6203
1932-6203
DOI:10.1371/journal.pone.0146193