The Effect of Speed, Accuracy and Effector on Generalizability of Motor Program

The aim of this study was to examine the effects of speed, accuracy and effector on generality of motor program. Twelve males from Iran’s professional futsal league participated in the study. After determining dominance leg of each participant, they were equally divided into two groups of left footedness and right footedness. In order to gather data, markers were placed on the anatomical positions. Then, participants were asked to perform 24 correct instep kicking (in accuracy and speed conditions) on a stationary ball from a marked penalty spot (6 meter) in futsal to target by dominant and non-dominant leg. Kicks were recorded by six high-speed digital cameras and kinematic data were calculated by Simi motion software. MANOVA was used for data analysis. The results indicated that there was no significant difference between the right and left footedness individuals and between dominant and non-dominant leg on the relative timing of interlimb and intralimb (p< 0.05). Also, there was no significant difference between the effect of speed and accuracy’s strategies on the relative timing of interlimb and intralimb (p< 0.05). Overall, the results support the theory of generalized motor program and its prediction based on invariant relative timing and effector independence