title: Can Previewing Sport-Specific Video Influence Reactive-Agility Response Time?
abstract: The purpose of this study was to examine whether a video-based warm-up could provide an acute performance benefit to response time for athletes in a sport-specific agility task. In addition, 2 learning strategies, explicit and implicit, were compared for their effectiveness in facilitating an improvement in sport-specific agility. Thirty representative male junior rugby union players (age 14-16 y, mean age 14.6 ± 1.09 y) were placed in 3 experimental groups (explicit, implicit, and control) and completed 2 intervention sessions. Testing sessions included preintervention testing, completion of the video-based warm-up intervention, and postintervention testing. A 3D motion-analysis system was used to assess response time in the testing battery. The athletes' response times on the pre- to postintervention tests were compared to determine the effectiveness of the video-based warm-up. A 2-way general linear model with repeated-measures analysis indicated that both the explicit (P = .030, d = 0.28) and implicit (P = .049, d = 0.33) groups significantly improved their response time by the intervention compared with the control group (P = .367, d = 0.08). The mean postintervention response time for the explicit group improved by 19.1% (from 0.246 s pre to 0.199 s post), and the implicit group improved by 15.7% (from 0.268 s to 0.226 s). Findings suggest that a video-based warm-up may provide an acute benefit to sport-specific agility performance for junior athletes.
authors.forename: Ryan
authors.initials: R
authors.lastname: Holding
authors.forename: Rudi
authors.initials: R
authors.lastname: Meir
authors.forename: Shi
authors.initials: S
authors.lastname: Zhou
mesh_terms: D000293:Adolescent; D054874:Athletic Performance / Q000502:physiology*; D005538:Football / Q000502:physiology; D006801:Humans; D008297:Male; D011930:Reaction Time; D014741:Video Recording; D063996:Warm-Up Exercise
keywords: decision making; implicit and explicit learning; rugby; video-based warm-up