Efeito da combinação de diferentes estruturas de prática na aquisição de habilidades motoras

Abstract

Practice has been performed in constant, blocked, serial, and randomschedules (SCHMIDT; WRISBERG, 2001). A superiority of varied practice over constant practice has been suggested, as well as a superiority of random and serial practice over blocked practice. It has recently been observed the importance of constant practice on the formation of a movement structure, especially at the beginning of motor learning. The present study investigated the combination of different practice schedules (constant, blocked and random) on motor skills acquisition. The sample was distributed into six groups (n=13): CBA (constant-blocked-random), CAB (constant-random-blocked), BCA (blocked, constant, random), BAC (blocked-random-constant), ACB (random-constantblocked) and ABC (random-blocked-constant). The experiment was divided in acquisition and tests. The task in the acquisition phase was to press keys in agiven sequence (2, 8, 6, 4) with the index finger of the right hand, with relative timing (22,2%, 44,4% e 33,3%) and absolute timing (700, 900 e 1100 ms), that was set up according to the experimental design. The results suggested a tendency of superiority of the CBA group in the measures of relative error and variability of relative error, seeing that only this group showed a decrease in these measures from the first to the last block of the acquisition phase and the maintenance of this performance in the tests.