The effect of distributed demonstrations in the volleyball serve learning

The present study investigated the effect of the distribution of the demonstration on the learning of the Japanese volleyball serve. Eighteen subjects were divided into 3 groups: G1 (8 demonstrations prior the practice), G2 (4 prior and 4 on 40th trial) and G4 (2 prior, 2 on 20th, 2 on 40th and 2 on 60th trial). The execution of a skilled person in the task was recorded and adopted as a demonstration to all groups. The experiment had pretest with 10 trials, acquisition phase with 80 trials and the retention test after 24 hours, with 10 trials. The results showed that demonstrations prior to the practice sessions conducted to score improvement and the distributed demonstration conducted to improvement in motor pattern.