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Cardiorespiratory Responses to Continuous and Intermittent Exercises in Children

Abstract : The aim of the present study was to characterize aerobic responses to HIIE and CE in prepubertal children. Twenty-five8 to 11-year-oldchildren took part to a preliminary visit to determine peakVO2and Maximal Aerobic Velocity (MAV). During the 5-followingexperimental visits, theparticipantscompleted2 CE and 3 HIIEsessionsin a randomized order. The HIIE consisted ofshort intermittent 10 and20-s running bouts from 100 to 130% of MAV, interspersed with recovery periods of equal duration (S-HIIE1 and S-HIIE2 respectively)and5-s sprinting and jumping at maximal intensity with 15-s recovery periods (S-HIIE3). Continuous submaximal exercises consistedoftwo 10-min running periods at 80% and 85% of MAVwith a 5-min recovery period.CEprotocols elicitedhigher average VO2and exercise time spent above 95%of peakVO2thanHIIE protocols. S-HIIE 1 and S-HIIE 2 elicited similar average VO2responseand higherthan S-HIIE 3. Our study has shown that CE activated the aerobic system to a greater extent than S-HIIE in prepubertal children, as reflected byexercise time above 95% of peakVO2. However, isotime S-HIIE protocols of either 10 or 20-s exercise bouts at an intensity aboveMAV result tosimilar exercisetimes at high oxygen consumption rates (above 95% VO2peak).
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Soumis le : mardi 12 mai 2020 - 14:17:12
Dernière modification le : lundi 7 décembre 2020 - 10:22:04


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Georges Baquet, Francois-Xavier Gamelin, Julien Aucouturier, Serge Berthoin. Cardiorespiratory Responses to Continuous and Intermittent Exercises in Children. International Journal of Sports Medicine, Thieme Publishing, 2017, International journal of sports medicine, 38 (10), pp.755-762. ⟨10.1055/s-0043-111892⟩. ⟨hal-02375510⟩



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