Coordination changes in the early stages of learning to cascade juggle.
The experiment was setup to examine the coordination changes in assembling the movement form of 3-ball cascade juggling. Eight adult participants learned to juggle over 4 weeks of practice. Juggling scores were recorded at each session and performance was videotaped at eight selected sessions for purposes of movement analysis. Once the basic spatial and temporal constraints on cascade juggling were satisfied, and the figure-8 juggling mode was established, temporal modulations of the relative motions of the hands were emphasized. All participants learned to juggle and the increase over practice in the number of consecutive balls caught was best fit with a power law. The non-proportional rate of performance increment was consistent with the qualitative changes in the form of the hand and ball movement kinematics that occurred over practice.
Haibach
Pamela S
PS
Department of Kinesiology, The Pennsylvania State University, 276 Recreation Building, University Park 16802, USA. pss121@psu.edu
Daniels
Gregory L
GL
Newell
Karl M
KM
D000328:Adult; D006801:Humans; D007858:Learning; D008297:Male; D009048:Motor Skills; D011597:Psychomotor Performance; D013028:Space Perception; D013177:Sports; D013997:Time Factors