Evidence of muscle synergies during human grasping
| Autor: | Claudio Castellini, Patrick van der Smagt |
|---|---|
| Jazyk: | němčina |
| Rok vydání: | 2013 |
| Předmět: |
Adult
Male 0209 industrial biotechnology Engineering brml biomechanics General Computer Science Movement 02 engineering and technology Kinematics Electromyography Models Biological Motion (physics) Young Adult 03 medical and health sciences 020901 industrial engineering & automation 0302 clinical medicine EMG Human–computer interaction muscle synergies medicine Humans prosthetics Muscle Skeletal Rehabilitation robotics Hand Strength medicine.diagnostic_test business.industry Degrees of freedom Work (physics) Motor control Muscle activation Middle Aged Evoked Potentials Motor Hand Perzeption und Kognition ddc Biomechanical Phenomena Artificial intelligence business 030217 neurology & neurosurgery Muscle Contraction Biotechnology |
| Popis: | Motor synergies have been investigated since the 1980s as a simplifying representation of motor control by the nervous system. This way of representing finger positional data is in particular useful to represent the kinematics of the human hand. Whereas, so far, the focus has been on kinematic synergies, that is common patterns in the motion of the hand and fingers, we hereby also investigate their force aspects, evaluated through surface electromyography (sEMG). We especially show that force-related motor synergies exist, i.e. that muscle activation during grasping, as described by the sEMG signal, can be grouped synergistically; that these synergies are largely comparable to one another across human subjects notwithstanding the disturbances and inaccuracies typical of sEMG; and that they are physiologically feasible representations of muscular activity during grasping. Potential applications of this work include force control of mechanical hands, especially when many degrees of freedom must be simultaneously controlled. |
| Databáze: | OpenAIRE |
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