Anthropometer

T h e d i s t a n c e f r o m t h e f l o o r to the vertex was measured using a SECA® anthropometer (model 220, Hamburg, Germany). The subject was standing and barefoot, with the heels together and the toes pointing out to a 45-degree angle. The heels, the buttocks, the back, and the occipital region had to be in contact with the surface of the anthropometer. The measurement was done during a maximum inspiration and keeping the head adjusted to To establish the differences in the behavior of expiratory reserve volume (ERV), RV, and FRC as per the nutritional status of normal weight versus obese children, Student's t test or the Mann-Whitney U test were used, according to outcome measure distribution. To establish a correlation among BMI, WHR, and FRC, Pearson's or Spearman's r test was done, depending on data distribution. In this regard, charts were developed as per nutritional status. The statistical significance level was established at p < 0.05.