The Quality of Breakfast and Healthy Diet in School-aged Adolescents and Their Association with BMI, Weight Loss Diets and the Practice of Physical Activity.
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ABSTRACT:
SUBMITTER: Guevara RM
PROVIDER: S-EPMC7469001 | biostudies-literature | 2020 Jul
REPOSITORIES: biostudies-literature
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The Quality of Breakfast and Healthy Diet in School-aged Adolescents and Their Association with BMI, Weight Loss Diets and the Practice of Physical Activity.
Guevara Raquel M RM Urchaga José D JD Cabaco Antonio S AS Moral-García José E JE
Nutrients 20200730 8
Dietary habits are an important factor in the protection of adolescent health. The quality and frequency of breakfast and the various food groups can affect the wellbeing of this population group in both the short and long term. Research indicates that there is a range of relevant variables in the study of diet at this stage: following a weight loss diet, body mass index and the practice of physical exercise, amongst others. In this paper, all three variables are analysed, together with others o ...[more]
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Project description:Background:Good nutrition and physical activity of school-aged children are important for ensuring optimum growth and reducing obesity. This present study assessed associations between breakfast consumption, BMI-for-Age (BMI) and physical fitness in a cross-section of school-aged children attending government-owned primary schools in Kumasi, Ghana. Method:The sample consisted of 438 pupils (boys?=?213; girls?=?225; mean age 11.1?±?1.1), attending 10 randomly selected schools. Weight (kg), height (cm) and Mid Upper Arm Circumference (MUAC) were measured for each participant, and BMI-for-age z-scores determined using the World Health Organisation (WHO) anthroplus software. Participants were stratified into thinness, normal weight, overweight/obese using WHO cut offs. Physical fitness was assessed using forward jump, left and right handgrips, flexibility, sit-ups and 50?metre run following standard procedures and converted to scores of 1 to 10 following Japanese standards, based on which percentiles were derived. Total fitness score for each pupil was computed by adding all scores. A questionnaire was used to assess meal intake patterns. Results:The mean BMI-for-age z-score for participants was -?0.24?±?0.99. Thinness, normal weight and overweight/obesity were 2.7, 86.5, and 10.5% respectively among the pupils. Overweight was higher in girls (14.2%) compared to boys (4.2%), p?=?0.003. Similarly, mean MUAC was significantly (p?=?0.021) higher in the girls (22.0 ± 3.2?cm) than the boys (20.7 ± 7.3?cm). For physical fitness, the girls scored higher in forward jump (p?<?0.0001), 50-m run (p?=?0.002) and overall fitness score than the boys (21.0?±?6.2 versus 19.2?±?8.3, p?=?0.012). However, a larger proportion of boys performed excellently and poorly than girls (p?=?0.019). A positive correlation was observed between BMI z-score and hand grip (r =?0.21, p?<?0.001), while sit up (r =?-?0.11, p?=?0.018) showed a negative correlation with BMI z-score. No other fitness test varied by BMI. Overweight children performed best in handgrip. Majority of children said they engaged in exercise (89.9%) and consumed breakfast (78.9%). Breakfast consumption was not associated with BMI z-score (x2 0.0359, p?=?0.549) but non-breakfast consumers performed better in 50?m run compared to consumers (7.0 seconds?±?2.3 vrs 6.3 seconds?±?2.5, p?=?0.022). Children who reported to exercise were physically fitter than those who did not. Conclusion:Underweight levels were low while overweight was over 10% in these children. Girls were more than 3 times affected by overweight than boys, and were also physically fitter than boys. Breakfast consumption was not related to weight or fitness.
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Project description:BackgroundIt is not known how the relationship between weight change and mortality is influenced by initial body mass index (BMI) or the magnitude of weight change.MethodsWe use the nationally representative Health and Retirement Study (n = 13,104; follow-up 1992-2006) and Cox regression analysis to estimate relative mortality risks for 2-year weight change by initial BMI among 50- to-70-year-old Americans. We defined small weight loss or gain as a change of 1-2.9 BMI units and large weight loss or gain as a change of 3-5 BMI units.ResultsLarge and small weight losses were associated with excess mortality for all initial BMI levels below 32 kg/m (eg, hazard ratio [HR] for large weight loss from BMI of 30 = 1.61 [95% confidence interval = 1.31-1.98]; HR for small weight loss from BMI of 30 = 1.19 [1.06-1.28]). Large weight gains were associated with excess mortality only at high BMIs (eg, HR for large weight gain from BMI of 35 = 1.33 [1.00-1.77]). Small weight gains were not associated with excess mortality for any initial BMI level. The weight loss-mortality association was robust to adjustments for health status and to sensitivity analyses considering unobserved confounders.ConclusionsWeight loss is associated with excess mortality among normal, overweight, and mildly obese middle- and older-aged adults. The excess risk increases for larger losses and lower initial BMI. These results suggest that the potential benefits of a lower BMI may be offset by the negative effects associated with weight loss. Weight gain may be associated with excess mortality only among obese people with an initial BMI over 35.
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Project description:ObjectiveTo study the effect of diet- and exercise-based lifestyle intervention on weight loss (WL) and cardiovascular risk among metabolically healthy obese (MHO) and metabolically unhealthy obese (MUO) children and adolescents.MethodsThe sample included 282 obese individuals (54% males, age (±SD) 12.9 (±2.3) years) who completed a 3- to 4-week WL camp program between 2017 and 2019. MUO was defined according to the consensus-based definition of pediatric MHO in 2018.ResultsThe intervention exhibited significantly benefits in improving body weight, body mass index, body fat ratio, waist circumference, systolic blood pressure (SBP), diastolic blood pressure (DBP), resting heart rate (RHR), triglycerides (TG), total cholesterol, and low-density lipoprotein-cholesterol levels in both MHO and MUO groups (for all comparisons, p < 0.01). However, the beneficial high-density lipoprotein-cholesterol (HDL-C) level (both p < 0.01) decreased evidently in both groups after intervention. In addition, percent changes in SBP (p < 0.001), DBP (p < 0.001), RHR (p = 0.025), fasting blood glucose (p = 0.011), and TG (p < 0.001) were more profound in MUO group than that in MHO group.ConclusionMetabolical health is a mutable and transient state during childhood. Although both groups gained comparable WL benefits from diet- and exercise-based lifestyle intervention, the MUO group may benefit more than the MHO group. Strategies aiming at lowering blood pressure and preventing the decrease of HDL-C level should be considered for the precise treatment of childhood obesity in clinical practice, with the goal of improving metabolically healthy state.
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Project description:BACKGROUND:The 'Eat Right, Be Positive About Your Body and Live Actively' (EPaL) intervention programme was developed to prevent overweight and disordered eating in Malaysian adolescents. This study aimed to evaluate the effectiveness of the EPaL programme on knowledge, attitudes and practices on healthy lifestyle and body composition (body mass index z-score [zBMI], waist circumference [WC] and body fat percentage [BF%]) among adolescents. METHODS:All measures were taken at three time points: before intervention (Pre), after intervention (Post I) and 3?months after intervention (Post II). The intervention group (IG) participated in the EPaL programme for 16?weeks, whereas the comparison group (CG) received no intervention. Seventy-six adolescents (IG: n?=?34; CG: n?=?42) aged 13-14?years were included in the final analysis. Repeated measures analysis of covariance (ANCOVA) was used to assess the impact of the EPaL intervention programme on the measures between groups (IG and CG) at Post I and Post II. RESULTS:The IG reported significantly higher knowledge scores at both Post I (adjusted mean difference?=?3.34; 95% confidence interval [CI]?=?0.99, 5.69; p?=?0.006) and Post II (adjusted mean difference?=?2.82; 95% CI?=?0.86, 4.78; p?=?0.005) compared with the CG. No significant differences between the IG and CG were found at either Post I or Post II in attitudes, practices, zBMI, WC and BF%. The proportion of participants who were overweight or obese was consistent from Pre to Post II in the IG (35.3%) and increased from 26.2% at Pre to 28.5% at Post II in the CG, but the difference was not statistically significant. The proportion of participants who had abdominal obesity in the IG decreased from 17.6% at Pre to 14.7% at Post II and increased from 16.7% at Pre to 21.4% at Post II in the CG, but the differences were not statistically significant. CONCLUSION:Despite no significant reduction of body composition, this programme shows the positive effect on the adolescents' knowledge regarding healthy lifestyle. This study contributes to the evidence on the effectiveness of school-based health interventions in Malaysian adolescents. TRIAL REGISTRATION:UMIN Clinical Trial Registration UMIN000024349. Registered 11 October 2016.
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