n International SportMed Journal - Individual anaerobic threshold prediction through 1 km and 3 km running performance in young soccer players : original research
|Article Title||Individual anaerobic threshold prediction through 1 km and 3 km running performance in young soccer players : original research|
|© Publisher:||International Federation of Sports Medicine|
|Journal||International SportMed Journal|
|Affiliations||1 Catholic University of Brasilia, Brazil, 2 Catholic University of Brasilia, Brazil, 3 Catholic University of Brasilia, Brazil, 4 Catholic University of Brasilia, Brazil, 5 Catholic University of Brasilia, Brazil, 6 Catholic University of Brasilia, Brazil, 7 University of Campinas, Brazil, 8 University of Campinas, Brazil and 9 Federal University of Vale do Sao Francisco, Brazil|
|Publication Date||Dec 2014|
|Pages||402 - 414|
|Keyword(s)||Equations, Exercise, Fitness, Lactate, Soccer, Teenagers and Threshold|
Background : Individual anaerobic threshold (IAT) is a valid method to evaluate aerobic capacity. However, IAT determination requires blood analysis and thus is less accessible for coaches and athletes. Type of study : Predictive validation. Purpose : To verify the validity of IAT prediction through 1 km and 3 km running performance in male youth soccer players. Methods : Participants (n=20; 15.4 ± 1.2 years; 170.1 ± 1.5 cm; 58.9 ± 5.8 kg) were divided into 2 groups (G1 and G2) who underwent running tests to identify IAT and the mean velocity for 1 km and 3 km performance (Vm1km Vm3km). For IAT determination volunteers performed 8 x 800m at incremental intensities of 80-103% Vm3km. Results : Linear regression between IAT and running performances (Vm1km and Vm3km) obtained from G1 participants yielded predictive equations ([IATp1km = (1.0009 * Vm1km) - 80.798] and [IATp3km = (0.8517 * Vm3km) + 4.5408]) that were applied in G2 for validation purposes. The running velocities corresponding to IAT (205.8 ± 18.8m.min-1) and IAT predicted from 1km (IATp1km = 207.8 ± 10.1m.min-1) and 3km (IATp3km = 204.8 ± 7.4m.min-1) did not differ from each other. Conclusions : The proposed equations were considered valid and could be used on exercise evaluation and prescription for young soccer players with similar physiological characteristics in this study's participants.
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