Special features of interrelations between M-response and F-wave latencies and bimanual coordination indices in males and females while exercising motor tasks of various complexity

Abstract

The average values of latency characteristics of stimulation myography in men and women were analyzed. The correlation analysis revealed interrelations between latencies of stimulation electroneuromyography of forearm nerves and bimanual coordination indices of voluntary task-oriented movements in subjects. Some special features of motor units activation and motor neuron excitability were established both in men and women. Men in realizing voluntary motor programme revealed more adequate involvement of neuromuscular structures compared to women. The correction of bimanual coordination was realized in both groups after making faults, the values of task realization being more prolonged in women. Along with it mastering motor skills in men was accompanied with optimizing neuromuscular activation with every task but women showed the leveling of mastering bimanual motor skills against the background of dyscoordination of inter-effector relations. The established features may serve as criteria for professional selection and forecasting the efficiency of labour bimanual motor skills.