The purpose of the present study was to investigate which of two strategies, Video Feedback with Pedagogical Activity (VF-PA) or Video Feedback (VF), would be more beneficial for the remote error correction of the snatch weightlifting technique during the confinement period. Thirty-five school aged children with at least three months of weightlifting experience were randomized to one of three training conditions: VF-PA, VF or the Control group (CONT). Subjects underwent test sessions one week before (T0) and one day after (T1) a six-session training period and a retention test session a week later (T2). During each test session, the Kinovea version 0.8.15 software measured the kinematic parameters of the snatch performance. Following distance learning sessions (T1), the VF-PA improved various kinematic parameters (i.e., barbell horizontal displacements, maximum height, looping and symmetry) compared with T0 ( p < 0.5; Cohen’s d = 0.58–1.1). Most of these improvements were maintained during the retention test (T2) ( p <0.01, Cohen’s d = 1.2–1.3) when compared withT0. However, the VF group improved only twoparameters (i.e., barbell symmetry and horizontal displacement) at T1 ( p < 0.05; Cohen’s d = 0.9), which were not maintained at T2. Better horizontal displacement and looping values were registered during the retention test in the VF-PA group compared with theCONT group ( p < 0.05, Cohen’s d = 1.49–1.52). The present findings suggest combining video feedback with pedagogical activity during the pandemic induced online coaching or physical education to improve movement learning in school aged children.
【저자키워드】 Pandemics, home confinement, weightlifting, motor learning, error detection, kinematic, execution time, biomechanics, feedback, 【초록키워드】 pandemic, children, activity, improvement, Randomized, Control, confinement period, physical education, not maintained, Registered, MOST, Cohen’s d, parameter, symmetry, physical, IMPROVE, Better, 【제목키워드】 COVID-19, learning, activity, induced, technique, distance, athlete, motor,