Temporal and Spatial Parameters in Interpersonal Coordination of Jumping Rope Elite Boys

Background: Coordination depends on online performance, and online feedback supports the successful coordination of individuals in joint implementations. Objective: A specific purpose for the research was investigating temporal and spatial parameters in interpersonal coordination. Methods: An applied research was done as a single-stage case study with ۱۴ jumping rope elite boys (۱۳-۱۸ years). The subjects practiced the jumping rope tasks for ۸ months so that they could do them properly and without online feedback. This study used a Vicon motion analysis device with six infrared cameras capable to record three-dimensional movements of the legs and rope whirling. Results: The results of one-way ANOVA showed that with enough practice, even in the absence of feedback, landing position (spatial parameter) and hand-foot time deviation, timing variation in rope whirling, and landing time (temporal parameter) of joint groups will reach an equal level while a significant difference was observed in jump height (spatial parameter) and movement time (temporal parameter) between individuals (P≤۰.۰۵). Conclusions: So, increasing task difficulty, amount and sustainability of inter-personal coordination will increase. Increasing joint task demands, amount and sustainability of interpersonal coordination will increase, and joining individual's power will be changed according to individual and joint tasks constraints.  

Keywords:

Kinematics Parameters , Prediction , Joint Action