article 2017 8 pages Effects of Successive Annual Training on Aerobic Endurance Indices in Young Swimmers Gavriil G. Arsoniadis, Petros G. Botonis, Ioannis S. Nikitakis, Dimitrios Kalokiris, Argyris G. Toubekis JournalThe Open Sports Sciences JournalDOI10.2174/1875399X01710010214Publication typeResearch ArticleStudy typelongitudinal studyPopulationyoung swimmers View on DOI ↗