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Int J Sports Med 2017; 38(10): 755-762
DOI: 10.1055/s-0043-111892
Training & Testing
© Georg Thieme Verlag KG Stuttgart · New York

Cardiorespiratory Responses to Continuous and Intermittent Exercises in Children

Georges Baquet
1   University of Lille, EA 7369 - URePSSS - Unité de Recherche Pluridisciplinaire Sport Santé Société, Ronchin, France
,
François-Xavier Gamelin
1   University of Lille, EA 7369 - URePSSS - Unité de Recherche Pluridisciplinaire Sport Santé Société, Ronchin, France
,
Julien Aucouturier
1   University of Lille, EA 7369 - URePSSS - Unité de Recherche Pluridisciplinaire Sport Santé Société, Ronchin, France
,
Serge Berthoin
1   University of Lille, EA 7369 - URePSSS - Unité de Recherche Pluridisciplinaire Sport Santé Société, Ronchin, France
› Author Affiliations
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Publication History



accepted 04 May 2017

Publication Date:
07 August 2017 (online)

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Abstract

The aim of the study was to characterize aerobic responses to high intensity intermittent (HIIE) and continuous (CE) exercises in prepubertal children. 26 children aged 8 to 11-year-old took part in a preliminary session to determine peakVO2 and Maximal Aerobic Velocity (MAV). In 5 subsequent experimental visits, the participants completed 2 CE and 3 HIIE sessions in a randomized order. HIIE consisted of short intermittent 10-s and 20-s running bouts at 100 to 130% MAV, interspersed with recovery periods of equal duration (S-HIIE1 and S-HIIE2 respectively) and 5-s of sprinting and jumping at maximal intensity with 15-s recovery periods (S-HIIE3). CE consisted of 2 10-min running periods at 80% and 85% MAV with a 5-min recovery period. CE protocols elicited higher average VO2 and exercise time spent above 95% of peakVO2 compared to the HIIE protocols. S-HIIE 1 and S-HIIE 2 elicited similar average VO2 response, higher than S-HIIE 3. Our study shows that CE activated the aerobic system to a greater extent than S-HIIE in prepubertal children, as reflected by the time above 95% of peakVO2 during exercise. However, isotime S-HIIE protocols comprising 10-s or 20-s exercise bouts at an intensity above MAV result in similar times above 95% of peakVO2 during exercise.

Key words

oxygen uptake - exercise modalities - maximal aerobic velocity - children
 

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