Recent works have shown that metabolic power is the best estimator of the high-intensity demands of soccer training. Moreover, Gaudino et al (2015) showed that high-intensity running distance and number of accelerations/decelerations are likely to be strong predictors of training load, estimated by rate of perceived exertion multiplied by session duration (RPE-TL), in elite soccer players. However, up to date absolute speed/power zones have been utilized to define high-intensity activities without accounting for individual physiological capacity. Aim. Aim of this study was to evaluate the relationship between RPE-TL and high-intensity distance (HID) determined by individual power thresholds in elite young soccer players. Methods. 18 U15 soccer players were investigated. All subjects performed a YO-YO IRT1 to determine maximal velocity (Vmax). HID was calculated utilizing: a) the most common power threshold used for young soccer players (ThP-st, 17.5W*kg-1); b) an individual threshold based on the equivalent metabolic power at Vmax (ThP-ind). During 16 training sessions 203 individual observations were recorded using a 10Hz GPS devise (K-Sport, Italy). RPE was collected 30 minutes after each training session using the CR-10 Borg scale. Linear regression analyses were made between RPE-TL and HID. Results. Training sessions lasted 112±21min. Mean total distance covered was 6532±1418m. HID was 1772±637m and 1365±493m by ThP-st and ThP-ind, respectively. HID was significantly related to RPE-TL (p<0.001) and the best correlation was found when employing ThP-ind (r2=0.42). Conclusion. The present findings suggest that high-intensity distance determined by an individual power threshold seems to be an effective tool to predict training load of elite young soccer players. This observation may support coaches and sport scientists to better monitor and design training. References. Gaudino P, Iaia FM, Strudwick AJ, Hawkins RD, Alberti G, Atkinson G, Gregson W (2015). Factors influencing perception of effort (session-RPE) during elite soccer training. IJSPP (ahead of print).
The role of individual thresholds to monitor training load in elite young soccer players / G. Bellistri, M. Marzorati, C. Sforza, A. La Torre, A. Giudici, A. Oddo, M. Muratore, S. Porcelli. - In: SPORT SCIENCES FOR HEALTH. - ISSN 1824-7490. - 11:Suppl. 1(2015 Sep), pp. 179 EP P.S70-179 EP P.S70. ((Intervento presentato al 7. convegno SISMES National Congress : 2 - 4 October tenutosi a Padova (Italy) nel 2015.
|Titolo:||The role of individual thresholds to monitor training load in elite young soccer players|
BELLISTRI, GIUSEPPE (Primo)
|Parole Chiave:||thresholds; training load; youth soccer players|
|Settore Scientifico Disciplinare:||Settore M-EDF/02 - Metodi e Didattiche delle Attivita' Sportive|
|Data di pubblicazione:||set-2015|
|Enti collegati al convegno:||University of Padova|
Società Italiana di Scienze Motorie e Sportive (SISMES)
|Appare nelle tipologie:||01 - Articolo su periodico|
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