Elite Youth Soccer Players' Physiological Responses, Time-Motion Characteristics, and Game Performance in 4 vs. 4 Small-Sided Games: The Influence of Coach Feedback
Autor: | Mirko Brandes, Sebastian Elvers |
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Jazyk: | angličtina |
Rok vydání: | 2017 |
Předmět: |
Male
medicine.medical_specialty Adolescent Rest Physical Exertion Physical Therapy Sports Therapy and Rehabilitation Perceived exertion Athletic Performance Motion (physics) Feedback 03 medical and health sciences 0302 clinical medicine Physical medicine and rehabilitation Heart Rate Soccer medicine Blood lactate Small sided games Humans Orthopedics and Sports Medicine 030212 general & internal medicine Lactic Acid Global positioning system Heart rate RPE TSAP Efficacy index Work (physics) 030229 sport sciences General Medicine Physiological responses Time and Motion Studies Elite Geographic Information Systems Psychology human activities |
Zdroj: | Journal of strength and conditioning research, 31(10):2652-2658 |
Popis: | Brandes, M and Elvers, S. Elite youth soccer players' physiological responses, time-motion characteristics, and game performance in 4 vs. 4 small-sided games: the influence of coach feedback. J Strength Cond Res 31(10): 2652–2658, 2017—The purpose of this study was to determine the impact of mild vs. strongly pushed coach feedback on the physiological response, ratio of perceived exertion (RPE), and time-motion characteristics in soccer training with small-sided games (SSGs). Sixteen elite youth soccer players (aged 17.2 ± 0.7 years, V̇o2max 62.1 ± 3.8 ml·kg−1·min−1) played two 4 vs. 4 small-sided games each. In random order, the coach provided a mild, unobtrusive, or a strongly pushed feedback throughout the game. Physiological measurements included heart rate expressed in mean values and intensity zones, blood lactate concentration, and RPE. The distance traveled, number of sprints, and work:rest ratio were captured by global positioning systems at 5 Hz. Game performance, such as volume of play and efficacy index, was estimated using the Team Sports Assessment Procedure. No differences were found for the physiological response and time-motion characteristics, but effect sizes demonstrated an increase in RPE (+0.4, p = 0.27) and a decrease in game performance (e.g., volume of play, −2.5, p = 0.08) under pushed feedback. Although a pushed feedback raises RPE, it negatively affected the players' game performance, without necessarily provoking higher physiological responses. These results should help coaches to understand that modifying the type of feedback provided during SSG does not impact the physiological response if SSG are already played with high intensity but that the feedback affects RPE and game performance. To keep a better game performance, soccer coaches are encouraged to provide smooth feedback during SSG. |
Databáze: | OpenAIRE |
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