Data from: Retracted: Biomechanical characteristics of hand coordination in grasping activities of daily living

THIS ARTICLE HAS BEEN RETRACTED Hand coordination can allow humans to have dexterous control with many degrees of freedom to perform various tasks in daily living.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.本文已被撤回。手部协调能力可使人类凭借多自由度的灵巧操控，完成日常生活中的各类任务。支撑这一核心能力的关键因素之一，是人类手部复杂的生物力学结构（biomechanical architecture）。然而，厘清生物力学结构与手部协调间的功能关联极具挑战：目前尚未明确究竟哪些生物力学特征主导了手部协调，以及每一项特征具体发挥何种作用。为探究二者间的关联，研究团队首先对运动学数据（kinematic data）开展统计分析，以此剖析日常任务中的手部协调特征——该数据采集自30名右利手受试者完成的多项抓握任务。随后，通过建立人类手部肌腱连接特性（tendinous connective characteristics）与日常抓握活动中协调特征之间的明确因果对应关系，明确了生物力学结构与手部协调之间的功能关联。这一清晰的功能关联表明，肌肉与关节之间的肌腱连接结构这一生物力学特征，是造物主为人类舒适完成各类日常任务所做的精妙设计。人类手部结构与功能间的明确关联，同时也提示，多功能机械手的设计应当更好地复刻这一基础结构。