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Context: Physical inactivity and sedentary behaviors are associated with adverse health outcomes in both adults and children. The purpose of this study was to investigate the effects of a 9-week program using a Cycle Desk during school time in French primary school children from high or low socioeconomic status (SES) on body composition, physical fitness (PF), and executive function. Methods: Seventy-five (n = 75) children completed a test battery before and after 9 weeks of use of Cycle Desk to evaluate anthropometric characteristics, body composition, PF, and executive function. Results: Body mass index increased significantly (P =.0095), while body fat decreased after the use of Cycle Desks (P <.0001). Specifically, lean mass increased in the high-SES group while it decreased in the low-SES group (P <.0001). After 9 weeks, there was an improvement in motor skills (P <.0001), upper and lower limbs' strength (P <.0001), and executive function performance (P <.0001). More specifically, the low-SES group had a greater improvement in motor skills and maximal aerobic speed between T0 and T1, compared to the high-SES group (P =.001, P =.023, respectively). In contrast, the high-SES group had a greater improvement in executive function at 9 weeks of use of Cycle Desk compared with the low-SES group (P =.0084). Conclusions: The promotion of low-intensity physical activity with the use of a Cycle Desk at school may help offset some adverse effects of excess sedentary behavior among children. Moreover, this strategy appears to be particularly effective in children from low-SES backgrounds. What's New: The use of a Cycle Desk during school time has no deleterious effects on PF as well as cognitive executive functions in primary children. Modifications are more beneficial in children from low SES. [ABSTRACT FROM AUTHOR]

Background: Scientific evidence and public health reports keep highlighting the continuous and alarming worldwide progression of physical inactivity and sedentary behaviors in children and adolescents. The present paper summarizes findings from the 2022 French Report Card (RC) on physical activity for children and youth and compares them to the 2016, 2018, and 2020 RCs. Methods: The 2022 edition of the French RC follows the standardized methodology established by the Active Healthy Kids Global Matrix. Ten physical activity indicators have been evaluated and graded based on the best available evidence coming from national surveys, peer-reviewed literature, government and nongovernment reports, and online information. The evaluation was also performed in children and adolescents with disabilities. Indicators were graded from A (high level of evidence) to F (very low level of evidence) or INC for incomplete. Results: The evaluated indicators received the following grades: overall physical activity: D−; organized sport participation and physical activity: C; active play: F; active transportation: C; sedentary behaviors: D−; family and peers: D; physical fitness: C; school: C−; community and the built environment: F; government: B. Conclusions: While this 2022 French RC shows progression for 7 out of the 10 indicators considered, it also underlines the continuous need for actions at the local, regional, and national levels to develop better surveillance systems and favor a long-term improvement of youth movement behaviors. [ABSTRACT FROM AUTHOR]

Author(s): Alicia Fillon [sup.1] [sup.2], Julie Masurier [sup.2], Bruno Pereira [sup.3], Maud Miguet [sup.1], Marie-Eve Mathieu [sup.4], Vicky Drapeau [sup.5], Angelo Tremblay [sup.5], Yves Boirie [sup.6] [sup.7] [sup.8] [sup.9], David [...], Background While the satiety quotient (SQ) is increasingly used in pediatric populations, the present study assessed its reliability and reproducibility in adolescents with obesity. Methods Sixty-eight adolescents with obesity were enrolled. Anthropometric measurements and body composition (DXA) were assessed. They randomly completed two experimental sessions: (i) condition with a standardized breakfast used to calculate SQ (C1); (ii) condition with the same breakfast and ad libitum lunch and dinner buffet meals (C2). Appetite feelings were assessed at regular interval (visual analog scales). Results SQ for hunger (SQH), satiety (SQS), prospective food consumption (SQP), and desire to eat (SQD) were calculated using the breakfast. SQH, SQD, and SQ mean did not differ between conditions (p = 0.41, 0.57, and 0.74, respectively) whereas SQS and SQP were significantly different between conditions (p = 0.007 and 0.005). None of the SQ was correlated with body weight (BW), BMI, or FM. There was no significant correlation between the SQ and the adolescent's ad libitum energy intake (lunch, dinner, and total). No differences were observed between adolescents with a low and high phenotype for BW, BMI, and FM% (p = 0.26, 0.30, and 0.83); total energy (p = 0.21); total protein intake (p = 0.28); total fat intake (p = 0.24) and total carbohydrate intake (p = 0.44). Thirty percent of the adolescents showed different satiety phenotype (low vs. high) between C1 and C2. Conclusions While the SQ is a reliable indicator in adults, it must be used with caution in adolescents with obesity due to its lack of association with anthropometric measurements, body composition, and energy and macronutrient intakes in this population.

Summary: Background: The identification of predictive parameters of the success of multidisciplinary weight loss interventions (MWLI) appears essential to optimize obesity management. The association between baseline cardiorespiratory fitness (CRF) and changes in anthropometric parameters and body composition during MWLI remains underexplored in adolescents with obesity. Objectives: To assess whether baseline CRF was associated with the effectiveness of a 16‐week MWLI measured through improved body mass, body mass index (BMI) and body composition (percentage of total fat mass (FM) as the main criterion). Methods: Cardiorespiratory fitness and body composition were respectively measured by peak oxygen consumption (VO2peak) during maximal exercise tests and dual‐photon x‐ray absorptiometry (DXA), before (T0) and after (T1) a 16‐week MWLI in 165 adolescents (aged 13.3 ± 1.38 years, 61.2% female, BMI 35.11 ± 5.16 kg/m2). Results: Reductions in BMI and total FM percentage between T0 and T1 were greater in subjects with a baseline VO2peak ≥ 3rd quartile compared to the first quartile (p < 0.001) and the interquartile range (p < 0.05 and p < 0.001, respectively). Baseline VO2peak and VO2 at the first ventilator threshold were positively correlated with the reductions in body mass, BMI and total and visceral FM percentages and with the increase in lean mass (LM) percentage between T0 and T1 after adjustment for age and gender (p < 0.001). Conclusion: Initial CRF is associated with the success of MWLI in adolescents with obesity. Improving their aerobic fitness before starting a MWLI might be a promising strategy to optimize its benefits. [ABSTRACT FROM AUTHOR]

Background: Cardiorespiratory fitness (CRF) is a strong marker of current and future health. The aim of this study was to assess the national temporal trends in CRF for French children and adolescents between 1999 and 2022. Methods: CRF data were obtained from several cross‐sectional studies on 15 420 (51.1% boys) French children and adolescents aged 9–16 years between 1999 and 2022. The 20‐m shuttle run test (20mSRT) estimated CRF. Body mass index (BMI) was calculated from measured height and body mass, with BMI z‐scores (BMIz) calculated using WHO growth curves. The 20mSRT results were corrected for protocol and converted to z‐scores (20mSRTz) using international sex‐ and age‐specific norms. With additional adjustment for BMIz, temporal trends in mean 20mSRT performance (20mSRTz) were estimated using linear regression, with the distance max (Dmax) method used to locate a breakpoint and linear segments fitted to points below and above the breakpoint. Trends in distributional characteristics were assessed visually and described as the ratio of the coefficients of variation (CVs). Results: After adjustment for protocol, age, sex, and BMIz, a large decline in mean 20mSRT performance (trend per decade (95% CI): −1.42 SDs (−1.45, −1.39) or −18.4% (95% CI: −18.8, −18.0)) between 1999 and 2022 was found. Dmax located a breakpoint for the two‐linear‐segment model in year 2010. There was a large decline in mean 20mSRT performance pre‐2010 (trend per decade (95% CI): −2.31 SDs (−2.39, −2.24)), which reduced 0.06‐fold to a negligible decline post‐2010 (trend per decade (95% CI): –0.15 SD (−0.20, −0.10)). We also found that the trend in mean 20mSRT performance was not uniform across the population distribution. Between 1999 and 2022, there was a small trend in distributional asymmetry, with slightly smaller declines experienced by the high performers (above the 75th percentile). Conclusions: Our data suggest a large decline in the 20mSRT performance of French children and adolescents since 1999. This declining trend seems to have diminished considerably since 2010. Such declines in CRF could translate into declines in health status. Although a slowing in the declining trend in CRF in recent years is encouraging, more data are needed to confirm these findings. [ABSTRACT FROM AUTHOR]

Recent evidence suggests better appetite control in states of high-energy flux (HEF) in adults and lean children. Nevertheless, it is unknown whether this extends to youth with obesity. This study compares the effects of low, moderate or HEF on short-term appetitive control in adolescents with obesity. Sixteen adolescents with obesity (12–16 years, Tanner stages 3–5, 11 females) randomly completed three conditions: (i) low-energy flux (LEF); (ii) moderate energy flux (MEF; + 250 kcal) and (iii) HEF (HEF; + 500 kcal). Energy flux was achieved in MEF and HEF through elevated energy intake (EI) and concomitant increase in energy expenditure using cycling exercise (65 % VO2peak). Ad libitum EI, macronutrient intake and relative EI were assessed at dinner, subjective appetite sensations taken at regular intervals and food reward measured before dinner. Ad libitum EI at dinner was greater in LEF compared with HEF (P = 0·008), and relative EI (REI) was higher in LEF compared with MEF (P = 0·003) and HEF (P < 0·001). The absolute consumption of carbohydrates was lower in LEF compared with MEF (P = 0·047) and HEF (P < 0·001). Total AUC for hunger and desire to eat was lower in HEF compared with LEF (P < 0·001) and MEF (P = 0·038). Total AUC for prospective food consumption was lower on HEF compared with LEF (P = 0·004). Food choice sweet bias was higher in HEF (P = 0·005) compared with LEF. To conclude, increasing energy flux may improve short-term appetite control in adolescents with obesity. [ABSTRACT FROM AUTHOR]

Background: There is an alarming and constant worldwide progression of physical inactivity and sedentary behaviors in children and adolescents. The present paper summarizes findings from France's 2020 Report Card on physical activity for children and youth, comparing its results to its 2 previous editions (2016 and 2018). Methods: France's 2020 Report Card follows the standardized methodology established by the Active Healthy Kids Global Matrix, grading 10 common physical activity indicators using the best available evidence. The grades were informed by national surveys, peer-reviewed literature, government and nongovernment reports, and online information. Results: The expert panel awarded the following grades: Overall Physical Activity: D; Organized Sport Participation and Physical Activity: C−; Active Play: INC; Active Transportation: C−; Sedentary Behaviors: D−; Family and Peers: D−; Physical Fitness: D; School: B−; Community and the Built Environment: F; Government: C. Conclusions: This 2020 edition of France's Report Card again highlights the alarming levels of physical activity and sedentary behaviors among French children and adolescents, calling for the development of effective national action. It also draws attention to the particular deleterious effects of the COVID-19 confinement on youth's movement behaviors, which significantly worsened the situation. [ABSTRACT FROM AUTHOR]

Background: While mental work has been shown to favor overconsumption, the present study compared the effect of a cognitive task alone, followed by acute exercise, or performed on a cycling desk, on short-term food intake and appetite in adults. Methods: A total of 19 normal-weight adults randomly completed: resting session (CON), 30-minute cognitive task (CT), 30-minute cognitive task followed by a 15-minute high-intensity interval exercise bout (CT–EX), and 30-minute cognitive task performed on a cycling desk (CT-CD). Energy expenditure was estimated (heart rate–workload relationship), and energy intake (EI; ad libitum) and appetite (visual analog scales) were assessed. Results: Energy expenditure was higher in CT-EX (P <.001) compared with the other conditions and in CT-CD compared with CON and CT (P <.01). EI was higher in CON (P <.05) and CT-CD compared with CT (P <.01). Relative EI was higher in CON compared with CT (P <.05) and lower in CT-EX compared with CT, CT-CD, and CON (all Ps <.001). Area under the curve desire to eat was higher in CON compared with CT (P <.05) and CT-EX (P <.01). Area under the curve prospective food consumption was higher in CON compared with CT-EX (P <.01). Overall composite appetite score was not different between conditions. Conclusion: While cycling desks are recommended to break up sedentary time, the induced increase in energy expenditure might not be enough to significantly reduce overall short-term relative EI after mental work. [ABSTRACT FROM AUTHOR]

Background: Insufficient levels of physical activity and increasing sedentary time among children and youth are being observed internationally. The purpose of this paper is to summarize findings from France's 2018 Report Card on physical activity for children and youth, and to make comparisons with its 2016 predecessor and with the Report Cards of other countries engaged in the Global Matrix 3.0. Methods: The France's 2018 Report Card was developed following the standardized methodology established for the Global Matrix 3.0 by grading 10 common physical activity indicators using best available data. Grades were informed by national surveys, peer-reviewed literature, government and nongovernment reports, and online information. Results: The expert panel awarded the following grades: overall physical activity, D; organized sport participation and physical activity, C--; active play, INC; active transportation, C--; sedentary behaviors, D--; physical fitness, B--; family and peers, INC; school, B; community and the built environment, INC; and government, C. Conclusions: Very concerning levels of physical activity and sedentary behaviors among French children and youth were observed, highlighting the urgent need for well-designed national actions addressing the presented physical inactivity crisis. The top 3 strategies that should be implemented in priority to improve the lifestyle of French children and youth are provided. [ABSTRACT FROM AUTHOR]

The article presents the recommendations from the French National Observatory for Physical Activity and Sedentary Behaviors (ONAPS) aimed at improving individuals' total daily activity level during the COVID-19 induced quarantine period. Topics include related measures adopted by the World Health Organization (WHO), survey conducted by ONAPS together with the French Ministry of Sports, and the importance of maintaining an active life style.

The article presents results from France's 2018 Report Card on Physical Activity for Children and Youth. It mentions indicators on the basis of which grades are assigned including organized sport participation, active transportation, and sedentary behavior. The report card reveals that French pre-adolescents (10-14 years old) show a good level of physical fitness that can potentially be explained by the good level of organized sport participation.

Introduction: Since adolescents with obesity are prone to bone fragility during weight loss, the aim was to compare the impact of high-intensity interval training (HIIT) versus moderate-intensity continuous training (MICT) on bone density, geometry, and strength. Methods: Sixty-one adolescents were randomly assigned to 2 cycling trainings (HIIT and MICT) and a control (CTR, without training) group. Anthropometry, dual-energy X-ray absorptiometry with hip structural analysis and the trabecular bone score (TBS) were assessed before and after the 16-week intervention. Results: Body mass index (BMI) and fat mass (FM) percentage decreased at T1 versus T0 in both training groups (p < 0.001 for HIIT, p = 0.01 for MICT), though to a larger extent in HIIT (p < 0.05). Total body bone mineral density (BMD) and bone mineral content (BMC) increased in both training groups (p < 0.001), but to a greater extent in HIIT for BMC (p < 0.05). Lumbar spine BMD and BMC increased in both training groups (p < 0.001 for HIIT, p < 0.01 for MICT), with a time × group interaction between HIIT and CTR (p < 0.05) only. TBS increased in both training groups (p < 0.01 for HIIT, p < 0.05 for MICT). Hip BMD and BMC increased in both HIIT (p < 0.001 and p < 0.01) and MICT (p < 0.01 and p < 0.05). At the narrow neck (NN), endocortical diameter, width (p < 0.01), cross-sectional moment of inertia, and section modulus (Z) (p < 0.05) increased only in the HIIT group, such as BMD and Z (p < 0.05) at the intertrochanteric region (IT) and average cortical thickness (p < 0.001) and width (p < 0.05) at the femoral shaft. At the NN and IT, the buckling ratio decreased only in the HIIT group (p < 0.05), predicting higher resistance to fracture. Conclusions: In addition to inducing greater BMI and FM percentage decreases in comparison to MICT, HIIT improves multisite bone density, geometry, and strength, which heighten the justification for HIIT as part of weight loss interventions in adolescents with obesity. [ABSTRACT FROM AUTHOR]

[Purpose] While there is a need for reliable field tests for the evaluation of physical fitness in pediatric obesity, the present work i) evaluates the validity of the Spartacus 15-15 test in indirectly assessing maximal aerobic capacity in adolescents with obesity and ii) evaluates its sensibility to weight loss. [Participants and Methods] Fifty-five 11-16 year-old adolescents with obesity (Tanner 3-4) were enrolled in a 12-week weight-management intervention. Maximal Aerobic fitness (VO 2peak test + Spartacus test) and body composition (Dual X-ray absorptiometry) were assessed at baseline and after 12 weeks. [Results] Moderate correlations were found at baseline between VO 2peak (2,231.90 ± 465.6 mL/min) and Spartacus stage (6.83 ± 1.8 stage, r=0.52; p≤0.05), speed (12.85 ± 1.8 km/h, r=0.52 ; p≤0.05) and time (20.6 ± 5.4 min; r=0.50; p≤0.05). The intervention favored significant improvements for VO 2peak , Spartacus Rate of Perceived Exertion final stage, maximal speed and time. Change over time in VO 2peak and Spartacus variables were not correlated. [Conclusion] The Spartacus test can be used as a proxy for VO 2peak at baseline and can be used to estimate VO 2peak using the proposed equation. The Spartacus 15-15 test might be a better indicator for changes in functional capacity than an indicator of VO 2peak changes in youth with obesity., Competing Interests: The authors report no conflicts of interest., (2020©by the Society of Physical Therapy Science. Published by IPEC Inc.)