So, the treatment was based a) in the analyses of the firsts performances on video according to the described efficiency indices (theoretical session) and b) on the administration of two types of augmented FB during practical sessions: 1) knowledge of results of the performance, by informing the riders of the time employed in carrying out the skill, 2) knowledge of performance through the use of descriptive and evaluative FB after performing the skill (based in the works developed by Wulf et al.
Although other investigators have reported the differential effects of feedback manipulations (precision and knowledge of results [KR] delay) on motor performance in children and adults, (39-42) none of these studies used a retention, transfer, or reacquisition test in order to make any inferences about motor learning.
One major facet of feedback is whether the feedback focuses on the outcome of a trial, referred to as knowledge of results (KR), or whether the feedback focuses on the qualitative aspects of the skill attempt, which is typically labeled knowledge of the performance (KP) (Magill, 2000).
Being able to accommodate that necessary change with discipline and with advanced knowledge of results provides for a competitive advantage for corporations.
In future studies we must known (a) if this chronometer system can improve the two types of feedback used in the context of motor learning: Knowledge of results and Knowledge of performance (Newell and Carlton, 1987; Schmidt and Young, 1991), due to the software possibility to transmit short instructions (text message) to the swimmer by means of a laptop computer, and (b) its possible effect as motivational or incentive tool as indicated by Newell (1976).
In contrast to results with concurrent feedback, a recent study[4] used a form of postresponse augmented feedback (de, summary knowledge of results [KR]) during practice and showed good learning of a PWB skill, with an accuracy at retention of within 7.
First, the effect of feedback frequency has been studied extensively in knowledge of results (KR) paradigms, but little work has been reported in which knowledge of performance (KP) was provided.
