Body mass index reference curves for Tunisian children

Ghouili, Hatem; Khalifa, Wissam Ben; Ouerghi, Nejmeddine; Zouaoui, Mehrzia; Dridi, Ahmed; Gmada, Nabil; Bouassida, Anissa

doi:10.1016/j.arcped.2018.09.005

Cited by 9 publications

(9 citation statements)

References 29 publications

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“…The most recent study was published in 2020 (93) . Of the eighty-six studies included, seventy-five had cross-sectional design (1,2,11–17,19,22,24–28,30–44,44,45,47,48,50–57,57–60,63–70,72–76,78–87,89–93,95,97) . Only eight studies had longitudinal design (29,46,49,61,71,77,88,96) and three had mixed longitudinal design (20,62,94) (Table 1).…”

Section: Resultsmentioning

confidence: 99%

“…The percentiles identified in studies on reference growth curves for underweight, overweight and obesity varied, and percentiles are presented in online Supplementary File . Thirty-six studies presented percentiles used in reference growth curves to identify underweight children and adolescents ranging from P1 to P10 (1,2,11,13,15,16,22,25,27,28,34,35,37,40,44,52,56,58,59,63,63–65,71,72,76–81,83,85,86,88,95,97) . Thirty-nine studies presented percentiles used in reference growth curves to identify overweight in children and adolescents ranging from P75 to P90 (1,2,11–14,22,24,24,26–29,32,34,35,40,42,51–53,58,61–64,66,71,73,74,76,78,80,81,88,89,91,94,94,95,97) (online Supplementary File ).…”

Section: Resultsmentioning

confidence: 99%

“…It is a good index to identify those children with ‘adequate’ adiposity, but among those with high BMI, there is an important proportion of children with normal adiposity (13,32,36,37,56,80,98) . BM for age and height for age are also widely used to identify malnutrition, overweight and obesity in children and adolescents, taking into account the simplicity of measurements and its use to calculate BMI (14,38,58,76,77,94) . Waist circumference is widely used in population surveys, as it is a highly sensitive and specific measure of central body fat in childhood and adolescence to identify overweight and obesity and discriminate risk for metabolic complications (26,49,63,73,77,80) .…”

Section: Discussionmentioning

confidence: 99%

“…Twenty studies were conducted in the Americas, in the following countries: two in Argentina, seven in Brazil, one in Canada, one in Chile, three in Colombia, three in the USA, one in Greenland, one in Peru and one in Venezuela (2,11,17,19,20,22,(62)(63)(64)(65)(66)(67)(68)(68)(69)(70)(71)(72)(73)(74)(75) . Two studies were carried out in Africa, in the countries of South Africa (one study) and Tunisia (one study) (76,77) (Table 1).…”

Section: General Characteristics Of the Included Studiesmentioning

confidence: 99%

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Reference growth curves to identify weight status (underweight, overweight or obesity) in children and adolescents: systematic review

et al. 2023

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The identification of somatic growth, through reference curves, can be used to create strategies and public policies to reduce public health problems such as malnutrition and obesity and to identify underweight, overweight and obesity, taking into account the variability of physical and of human development characterized by intra and interpopulation heterogeneity. The purpose of this systematic review was to identify studies providing reference growth curves for weight status (underweight, overweight or obesity) in children and adolescents. A systematic search was conducted in CINAHL; LILACS; PubMed ScienceDirect; Scopus; SPORTDiscus; SciELO; Web of Science. Manual searches were also carried out in gray literature (Google scholar) in order to find possible studies that were not retrieved by the search strategy. Data were extracted by two independent reviewers, and consensus was verified between them. To assess the risk of bias/methodological quality of studies, the National Institutes of Health (NIH) Quality Assessment Tool for Observational Cohort and Cross-sectional Studies (NHLBI) was used. Overall, 86 studies that met the inclusion criteria were included (cross-sectional and longitudinal). Through the values of reference growth curves for the identification of underweight, overweight and obesity, it was possible to verify that there is great variability among percentiles for the identification of underweight, overweight and obesity. The most prevalent percentiles for underweight were P3 and P5; for overweight, the most prevalent was P85 and the most prevalent percentiles for obesity were P95 and P97. The most prevalent anthropometric indicators were Body Mass Index (BMI), Waist Circumference (WC), Body Mass (BM) for age and height for age. Conclusion: The optimal growth must be reached, through the standard growth curves, but that the reference curves demonstrate a cut of the population growth, raising possible variables that can influence the optimal growth, such as an increase in the practice of physical activities and an awareness of proper nutrition.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: General Characteristics Of the Included Studiesmentioning

confidence: 99%

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Reference growth curves to identify weight status (underweight, overweight or obesity) in children and adolescents: systematic review

et al. 2023

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“…Of note, a meta-analysis revealed that physical inactivity, increased screen time, and higher socio-economic status were risk factors for childhood obesity in the Middle East and North Africa (MENA) ( Farrag et al, 2017 ). Therefore , obesity is characterized as a global epidemic that affects all ages ( Ghouili et al, 2018 ) with childhood and adolescence being crucial periods for prevention and intervention efforts ( Monteiro et al, 2015 ). Moreover, it is often coupled with impairments in cardiovascular fitness, muscle strength, physical function, and the capacity to perform daily activities ( Pazzianotto-Forti et al, 2020 ).…”

Section: Introductionmentioning

confidence: 99%

Concurrent Training Promotes Greater Gains on Body Composition and Components of Physical Fitness Than Single-Mode Training (Endurance or Resistance) in Youth With Obesity

et al. 2022

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The prevalence of obesity in the pediatric population has become a major public health issue. Indeed, the dramatic increase of this epidemic causes multiple and harmful consequences, Physical activity, particularly physical exercise, remains to be the cornerstone of interventions against childhood obesity. Given the conflicting findings with reference to the relevant literature addressing the effects of exercise on adiposity and physical fitness outcomes in obese children and adolescents, the effect of duration-matched concurrent training (CT) [50% resistance (RT) and 50% high-intensity-interval-training (HIIT)] on body composition and physical fitness in obese youth remains to be elucidated. Thus, the purpose of this study was to examine the effects of 9-weeks of CT compared to RT or HIIT alone, on body composition and selected physical fitness components in healthy sedentary obese youth. Out of 73 participants, only 37; [14 males and 23 females; age 13.4 ± 0.9 years; body-mass-index (BMI): 31.2 ± 4.8 kg·m-2] were eligible and randomized into three groups: HIIT (n = 12): 3-4 sets×12 runs at 80–110% peak velocity, with 10-s passive recovery between bouts; RT (n = 12): 6 exercises; 3–4 sets × 10 repetition maximum (RM) and CT (n = 13): 50% serial completion of RT and HIIT. CT promoted significant greater gains compared to HIIT and RT on body composition (p < 0.01, d = large), 6-min-walking test distance (6 MWT-distance) and on 6 MWT-VO2max (p < 0.03, d = large). In addition, CT showed substantially greater improvements than HIIT in the medicine ball throw test (20.2 vs. 13.6%, p < 0.04, d = large). On the other hand, RT exhibited significantly greater gains in relative hand grip strength (p < 0.03, d = large) and CMJ (p < 0.01, d = large) than HIIT and CT. CT promoted greater benefits for fat, body mass loss and cardiorespiratory fitness than HIIT or RT modalities. This study provides important information for practitioners and therapists on the application of effective exercise regimes with obese youth to induce significant and beneficial body composition changes. The applied CT program and the respective programming parameters in terms of exercise intensity and volume can be used by practitioners as an effective exercise treatment to fight the pandemic overweight and obesity in youth.

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Developing normative values and predictive models for the 6‐minute walk test across diverse adolescent developmental stages

Ghouili,

Dergaa,

Dridi

et al. 2024

European Journal of Sport Science

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The six‐minute walking test (6MWT) is commonly used to measure functional capacity in field settings, primarily through the distance covered. This study aims to establish reference curves for the six‐minute walking distance (6MWD) and peak heart rate (PHR) and develop a predictive equation for cardiovascular capacity in Tunisian children and adolescents. A total of 1501 participants (706 boys and 795 girls), aged 10–18 years, were recruited from schools in Tunisia. The Lambda (L), Mu (M), and Sigma (S) methods (LMS method) were employed to develop smoothed percentile curves for 6MWD and PHR. Multivariate linear regression was utilized to formulate a prediction equation for 6MWD. Smoothed percentiles (3rd, 10th, 25th, 50th, 75th, 90th, and 97th) for 6MWD and PHR were presented with age. All variables showed a strong positive correlation (p < 0.001) with a six‐minute walking distance (r ranged from 0.227 to 0.558 for girls and from 0.309 to 0.610 for boys), except resting heart rate, which showed a strong negative correlation (girls: r = −0.136; boys: r = −0.201; p < 0.001). Additionally, PHR showed a weak correlation (p > 0.05). The prediction equations, based on age as the primary variable, were established for both genders. For boys: 6MWD = 66.181 + 38.142 × Age (years) (R2 = 0.372; Standard Error of Estimate (SEE) = 122.13), and for girls: 6MWD = 105.535 + 28.390 × Age (years) (R2 = 0.312; SEE = 103.66). The study provides normative values and predictive equations for 6MWD and PHR in Tunisian children and adolescents. These findings offer essential tools for identifying, monitoring, and interpreting cardiovascular functional deficits in clinical and research settings.

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Body mass index reference curves for Tunisian children

Cited by 9 publications

References 29 publications

Reference growth curves to identify weight status (underweight, overweight or obesity) in children and adolescents: systematic review

Reference growth curves to identify weight status (underweight, overweight or obesity) in children and adolescents: systematic review

Concurrent Training Promotes Greater Gains on Body Composition and Components of Physical Fitness Than Single-Mode Training (Endurance or Resistance) in Youth With Obesity

Developing normative values and predictive models for the 6‐minute walk test across diverse adolescent developmental stages

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