article 2019 Physiological Responses of Continuous and Intermittent Swimming at Critical Speed and Maximum Lactate Steady State in Children and Adolescent Swimmers Ioannis S. Nikitakis, Giorgos P. Paradisis, Gregory C. Bogdanis, Argyris G. Toubekis JournalSportsDOI10.3390/sports7010025Populationchildren and adolescents View on DOI ↗