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  • Author: Julien Aucouturier x
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Salomé Aubert, Julien Aucouturier, Caroline Ganière, Alicia Fillon, Pauline Genin, Julien Schipman, Benjamin Larras, Corinne Praznoczy, Martine Duclos and David Thivel

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Georges Baquet, Gregory Dupont, François-Xavier Gamelin, Julien Aucouturier and Serge Berthoin

This study aimed to compare the effect of active recovery (AR) versus passive recovery (PR) on time to exhaustion and time spent at high percentages of peak oxygen uptake (peakV˙O2) during short, high-intensity intermittent exercises in children. Twelve children (9.5 [0.7] y) underwent a graded test and 2 short, high-intensity intermittent exercises (15 s at 120% of maximal aerobic speed) interspersed with either 15 seconds of AR (50% of maximal aerobic speed) or 15-second PR until exhaustion. A very large effect (effect size = 2.42; 95% confidence interval, 1.32 to 3.52) was observed for time to exhaustion in favor of longer time to exhaustion with PR compared with AR. Trivial or small effect sizes were found for peakV˙O2, peakHR, and peak ventilation between PR and AR, while a moderate effect in favor of higher average V˙O2 values (effect size = −0.87; 95% confidence interval, −1.76 to −0.01) was found using AR. The difference between PR and AR for the time spent above 80% (t80%) and 90% (t90%) of peakV˙O2 was trivial. Despite the shorter running duration in AR, similar t80% and t90% were spent with AR and PR. Time spent at a high percentage of peakV˙O2 may be attained by running 3-fold shorter using AR compared with using PR.

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Julien Aucouturier, Caroline Ganière, Salomé Aubert, Fabien Riviere, Corinne Praznoczy, Anne Vuillemin, Mark S Tremblay, Martine Duclos and David Thivel

Background:

Many countries publish periodic Report Cards on physical activity for children and youth. This paper presents the results from the first French Report Card providing a systematic synthesis and assessment of the national engagements to facilitate childhood physical activity.

Methods:

A search for nationally representative data on 8 indicators of physical activity was conducted and the data were assessed by an expert panel according to international procedures. Whether children across France are achieving specific benchmarks was rated using an established grading framework [A, B, C, D, F, or INC (incomplete)]. Data were interpreted, grades assigned and detailed in the 2016 Report Card that was produced and disseminated.

Results:

The expert panel awarded the following grades: Overall Physical Activity: INC; Organized Sport Participation: D; Active Transportation: D; Sedentary Behaviors: D; Family and Peers: INC; School: B; Community and the Built Environment: INC; Government Strategies and Investment: INC.

Conclusions:

The grades reveal that efforts must be done to improve youth’s physical activity and that several gaps in the literature still need to be addressed. Collectively the results highlight that children’s physical activity levels are low and that further national supports and investments are needed to promote childhood healthy active living in France.