Does maturity estimation, 2D:4D and training load measures explain physical fitness changes of youth football players?

BMC Pediatrics

Research

Hamed Haghighi¹  Francisco González-Fernández²  Filipe Manuel Clemente³  José Ma. Cancela Carral⁴  Rui Miguel Silva⁵  Hadi Nobari⁶ 

[1] Department of Motor Performance, Faculty of Physical Education and Mountain Sports, Transilvania University of Brasov, 500068, Brasov, Romania;Department of Sports Injuries and Corrective Exercises, Faculty of Sport Sciences, University of Isfahan, 81746-7344, Isfahan, Iran;Department of Physical Education and Sport, Faculty of Education and Sport Sciences, University of Granada, Campus Melilla, 52006, Melilla, Spain;SER Research Group, Pontifical University of Comillas, 07013, Palma, Spain;Escola Superior Desporto e Lazer, Instituto Politécnico de Viana do Castelo, Rua Escola Industrial e Comercial de Nun’Álvares, 4900-347, Viana do Castelo, Portugal;Research Center in Sports Performance, Recreation, Innovation and Technology – SPRINT, 4900-347, Viana do Castelo, Portugal;Faculty of Educational Sciences and Sports Sciences, University of Vigo, 36005, Pontevedra, Spain;Faculty of Educational Sciences and Sports Sciences, University of Vigo, 36005, Pontevedra, Spain;Escola Superior Desporto e Lazer, Instituto Politécnico de Viana do Castelo, Rua Escola Industrial e Comercial de Nun’Álvares, 4900-347, Viana do Castelo, Portugal;Research Center in Sports Performance, Recreation, Innovation and Technology – SPRINT, 4900-347, Viana do Castelo, Portugal;Faculty of Sport Sciences, University of Extremadura, 10003, Cáceres, Spain;Department of Exercise Physiology, Faculty of Educational Sciences and Psychology, University of Mohaghegh Ardabili, 56199-11367, Ardabil, Iran;Department of Motor Performance, Faculty of Physical Education and Mountain Sports, Transilvania University of Brasov, 500068, Brasov, Romania;Department of Sports Injuries and Corrective Exercises, Faculty of Sport Sciences, University of Isfahan, 81746-7344, Isfahan, Iran;

关键词: Maturation;    Assessment;    Monitoring;    Performance;   

DOI  :  10.1186/s12887-022-03801-5

 received in 2022-05-08, accepted in 2022-12-14,  发布年份 2022

来源: Springer

【 摘 要 】

ObjectivesThe purpose of the present study was two-fold: (1) To analyse physical fitness changes of youth football players after a full-season; and (2) to examine whether physical fitness changes are explainable by estimated maturity status, 2digit:4digit ratio (2D:4D) from each hand and training load (TL) measures.MethodsTwenty-seven youth elite Under-15 football players were daily monitored for training load measures during 38 weeks. At the beginning and at the end of the season, all players were assessed for physical fitness. Also, the maturity status estimation and the length of the second and fourth digits of both hands were collected at the beginning of the season.ResultsSignificant differences were found for all physical fitness measures after the season. The second and fourth digits of left and right hands had negative moderate correlations with change of direction (COD) changes (r=-.39 to − 0.45 | p = .05 to 0.02). Also, the maturity offset measure had negative moderate correlations with COD changes (r=-.40 | p = .04). From the reported significant correlations, the maturity offset, Left 4D, Right 2D and Right 4D significantly predicted the Mod.505 COD test changes (β = 0.41, p = .04; β = -0.41, p = .04; β = -0.45, p = .02; and β = -0.44, p = .03, respectively).ConclusionThe maturity offset and the 2D:4D measures have the potential to predict COD performance changes over-time in youth football players. Given the lack of associations between the maturity estimation, 2D:4D and training load measures, with the overall physical fitness measures, coaches should rely only at COD changes.

【 授权许可】

CC BY   
© The Author(s) 2022

【 图 表 】

Fig. 1