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 singlestage case study with 14 jumping rope elite boys (13-18 years). the subjects practiced the jumping rope tasks for 8 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 oneway 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⋜0.05).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 individualchr's power will be changed according to individual and joint tasks constraints.