Hadi Nobari1,2,3, Amir Barjaste4,5, Hamed Haghighi6, Filipe M Clemente7,8, Jorge Carlos-Vivas9, Jorge Pérez-Gómez9. 1. Department of Physiology, School of Sport Sciences, University of Extremadura, Cáceres, Spain - hadi.nobari1@gmail.com. 2. Department of Exercise Physiology, Faculty of Educational Sciences and Psychology, University of Mohaghegh Ardabili, Ardabil, Iran - hadi.nobari1@gmail.com. 3. Sepahan Football Club, Isfahan, Iran - hadi.nobari1@gmail.com. 4. Department of Exercise Physiology, Faculty of Sport Sciences, University of Guilan, Rasht, Iran. 5. Rahman Institute of Higher Education, Ministry of Science, Research and Technology, Ramsar, Iran. 6. Department of Sport Injuries and Corrective Exercises, Faculty of Sport Sciences, University of Isfahan, Isfahan, Iran. 7. Escola Superior Desporto e Lazer, Instituto Politécnico de Viana do Castelo, Viana do Castelo, Portugal. 8. Instituto de Telecomunicações, Delegação da Covilhã, Lisboa, Portugal. 9. HEME Research Group, Faculty of Sport Sciences, University of Extremadura, Cáceres, Spain.
Abstract
BACKGROUND: The present study aimed to quantify training and match load in elite young soccer players over the course of an entire season. METHODS: Using a longitudinal design, session-rate of perceived exertion (s-RPE) and its metrics (weekly acute workload [wAW], acute to chronic workload ratio [wACWR], training monotony and training strain) were examined in twenty-one elite young soccer players (mean±standard deviation; age: 16.1±0.2 years; height: 176.8±5.6 cm; body mass: 67.3±5.7 kg; BMI: 21.5±1.4 kg/m2; V̇O<inf>2max</inf>: 47.6±3.8 mL.kg-1.min-1) during the whole season containing 4 meso-cycles: preseason (Pre-S), early-season (Ear-S), mid-season (Mid-S), and end-season (End-S). RESULTS: Repeated-measures analysis of variance examined variations in s-RPE load data across the 4 meso-cycles and 1-week of microcycle. Analyzing data revealed the End-S had a significant greater wAW compared to Early-S (P=0.002, g=0.96) and Mid-S (P<0.001, g=1.09). However, no differences between in-season periods were observed in wACWR (P=0.524). The within-week variations revealed significant lower wAW in prematch a day (MD-1) (P<0.001), 1 day after match (MD+1) (P<0.001) and 2 days after match (MD+2) (P<0.001) compared to match day (MD) for overall team analysis. Additionally, analyses by playing position showed that fullbacks have a significant lower AW in MD+2 compared to MD (P<0.029). CONCLUSIONS: The periodization of training load indicated variations across the whole season in young elite players. The weekly microcycle perceived load could be identified as follows; there are higher training loads on MD-3 and MD-2 which was similar to intensities experienced by players throughout the match play and, furthermore, lower overall WL on the MD+1 and MD+2 in order to ensure the optimal recovery of the players.
BACKGROUND: The present study aimed to quantify training and match load in elite young soccer players over the course of an entire season. METHODS: Using a longitudinal design, session-rate of perceived exertion (s-RPE) and its metrics (weekly acute workload [wAW], acute to chronic workload ratio [wACWR], training monotony and training strain) were examined in twenty-one elite young soccer players (mean±standard deviation; age: 16.1±0.2 years; height: 176.8±5.6 cm; body mass: 67.3±5.7 kg; BMI: 21.5±1.4 kg/m2; V̇O<inf>2max</inf>: 47.6±3.8 mL.kg-1.min-1) during the whole season containing 4 meso-cycles: preseason (Pre-S), early-season (Ear-S), mid-season (Mid-S), and end-season (End-S). RESULTS: Repeated-measures analysis of variance examined variations in s-RPE load data across the 4 meso-cycles and 1-week of microcycle. Analyzing data revealed the End-S had a significant greater wAW compared to Early-S (P=0.002, g=0.96) and Mid-S (P<0.001, g=1.09). However, no differences between in-season periods were observed in wACWR (P=0.524). The within-week variations revealed significant lower wAW in prematch a day (MD-1) (P<0.001), 1 day after match (MD+1) (P<0.001) and 2 days after match (MD+2) (P<0.001) compared to match day (MD) for overall team analysis. Additionally, analyses by playing position showed that fullbacks have a significant lower AW in MD+2 compared to MD (P<0.029). CONCLUSIONS: The periodization of training load indicated variations across the whole season in young elite players. The weekly microcycle perceived load could be identified as follows; there are higher training loads on MD-3 and MD-2 which was similar to intensities experienced by players throughout the match play and, furthermore, lower overall WL on the MD+1 and MD+2 in order to ensure the optimal recovery of the players.
Authors: Adrián Díez; Demetrio Lozano; Jose Luis Arjol-Serrano; Elena Mainer-Pardos; Daniel Castillo; Marcelino Torrontegui-Duarte; Hadi Nobari; Diego Jaén-Carrillo; Miguel Lampre Journal: BMC Sports Sci Med Rehabil Date: 2021-12-16
Authors: Hadi Nobari; Rafael Oliveira; Filipe Manuel Clemente; Jorge Pérez-Gómez; Elena Pardos-Mainer; Luca Paolo Ardigò Journal: Children (Basel) Date: 2021-05-10
Authors: Hadi Nobari; Jason M Cholewa; Jorge Pérez-Gómez; Alfonso Castillo-Rodríguez Journal: J Int Soc Sports Nutr Date: 2021-06-05 Impact factor: 5.150