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Erschienen in:
2019 | OriginalPaper | Buchkapitel
Tuning of Homologous Muscle Coupling During Bimanual Steering Tasks in Slow Speed: A Pilot Study
verfasst von : Hiroshi R. Yamasaki, Ken-ichi Ozaki, Álvaro Costa-García, Matti Itkonen, Shotaro Okajima, Masanori Tanimoto, Ikue Ueda, Kazuya Usami, Masaki Kamiya, Hiroshi Matsuo, Aiko Osawa, Izumi Kondo, Shingo Shimoda
Erschienen in: Converging Clinical and Engineering Research on Neurorehabilitation III
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Abstract
Speed control is a crucial factor of motor skill. Although rehabilitation for damaged central mechanisms underpinning the appropriate temporal tuning during bimanual coordination is an important target, the detailed knowledge about the methodology of the therapy is quite limited. This study aimed to clarify the effect of slowing the pace of bimanual rhythmic steering task using a new steering device on the homologous muscle coupling exemplified by the EMG-EMG coherence. At the slow pace, homologous coherence in control subjects at a frequency band of 65–115 Hz in forearm flexors increased relative to the natural speed, whereas small increment in subjects after stroke, suggesting activated central coupling mechanisms dominate the distal muscles for speed adaptation. Relationship between the capability of this mechanism and recovery after stroke is of interesting topic in future studies and will be beneficial for physical rehabilitation.