Identification and quantification of modular control during Roundhouse kick executed by elite Taekwondo players

The main goal of this study is to determine the neuromuscular coordination and synergies during roundhouse kick executed by elite taekwondo players. Muscles synergy (coordination) is a tactics of CNS (Central Nervous System) to consider a lower dimensional parameters of motor coordination commands from the central nervous system (CNS) of human body or animals. Fifteen elite players from Iran taekwondo national team participated in current study. Neuromuscular coordination (synergies) were extracted from six taekwondo specific muscles. Studies on athletics performance featured how factors such as the lowest number of motor coordination determination for most of the data variance correlate with impairments and motor task. Neuromuscular coordination (synergies) and their separate synergy activation curves were determined from six lower extremity muscles via a NNMF (Non Negative Matrix Factorization) theory. Three muscle synergies were capable to express 90% of the variance in electromyography signals across all players. The scalar product similarity of the neuromuscular synergies among the athletics is found to be 0.81±0.17.