Academic journal article Research Quarterly for Exercise and Sport

Effect of Practice Sequence on the Bilateral Acquisition of a Novel Motor Skill

Academic journal article Research Quarterly for Exercise and Sport

Effect of Practice Sequence on the Bilateral Acquisition of a Novel Motor Skill

Article excerpt

Jaclyn N. Chavez, Utah State University, and Cheryl A. Coker New Mexico State University

Research supports the idea that a greater degree of transfer occurs asymmetrically, however, optimal practice sequence (preferred to nonpreferred limb or vice versa) for learning a bilateral skill remains unclear. While previous research on the topic has relied primarily on performance outcome, the purpose of this study was to investigate both the kinematic and performance outcome effects of practice sequence on the bilateral acquisition of a novel motor skill. Sixteen right-hand dominant participants were assigned to one of two experimental groups differentiated by practice limb (Group 1: preferred limb practice [PLP], Group 2: nonpreferred limb practice [NPLP]). Participants performed a racquetball forehand kill shot with the designated limb for three acquisition sessions (100 trials per session). A pretest, posttest, and 12-day retention test consisting of 10 trials per limb were used to determine practice sequence effects. Separate 2 x 2 x 3 (Group x Limb x Test) ANOVAs with repeated measures on the last factor were used to analyze the performance outcome variable (score) and the kinematic variable racket velocity. In addition, a 2 x 2 x 2 x 3 (Group x Limb x Event x Test) ANOVA with repeated measures on the last factor was used to determine differences in arm pattern at the elbow. …

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