Comparação entre três equações de referência para a espirometria em crianças e adolescentes com diferentes índices de massa corpórea

Abstract

Objective: To compare FEV 1 and FVC, calculated using three sets of reference equations (devised by Polgar & Promadhat, Hsu et al. and Mallozi in 1971, 1979 and 1995, and to determine whether the three are similar in predicting lung function in children and adolescents with distinct body mass indices (BMIs). Methods: The individuals were separated into four groups in accordance with the reference standards of the National Center for Health Statistics: underweight (UW), normal weight (NW), overweight (OW), and obese (OB

Capacidade vital forçada e tempos máximos de fonação em relação à circunferência abdominal e ao estado nutricional de crianças

“…The voiceless phonation of /e/ (/ė/) differs from the previous because it does not require vocal folds vibration and is more reliable on the evaluation of the control by exclusive respiratory support 1,7 . In relation to MPT /e,a/ children with AC percentile between 25 and 75 had a significant higher MPT in relation to others, possibly justified by the literature under the weight gain influence on the FVC previously mentioned, which may have an influence on these emissions 23,24,27,30,31 . However, there was no significant statistic difference according to the nutritional status, showing that it does not seem to affect the pneumo-phonatory coordination, which was not found on literary researches for comparison.…”

“…Such results are compatibles with the ones observed in a study with one hundred fifty six (156) asymptomatic volunteers thirty two (32) On the contrary, a research which performed pulmonary function test on one hundred twenty two (122) individuals aged between 7 and 14 years, from both genders, has shown that weight has a significant effect upon the pulmonary function values on young people, with the initial increase of the pulmonary function through the muscular effect and then, the decrease through obesity's effect 31 . Another study results 32 has also shown gradual increase on FVC values related to a BMI increase. This also supports the present study found on the significant FVC increase as AC increases.…”

“…Nevertheless the respiratory function data on obesity is still very controversial. According to some of the authors 28,31 , a possible explanation for such discrepancy may be the fact that most studies concerns extreme obesity levels or have a small sample size, with no control group.…”

Lung function and functional capacity in school age children

“…Drumond et al (18) did not observe any statistically signi icant difference either for PEF and FVC measures when compared to different BMI coef icient. The literature in general differs from our indings, as appointed in Gundogdu; Eryilmaz (15), who assessed the PEF measures of 1,439 obese and non-obese children, and observed that the former were associated with low PEF coef icients, indicating obesity as a risk factor for good cardiopulmonary performance.…”

The locomotor system as seen in Brazilian scientific journals: a mini review

“…Metabolic syndrome and its correlations with the locomotor system are the object of eight articles:19,21,22,24,37,42,52,55 they cover critical problems relating to the effects of overweight and obesity upon the motor system, sporting performance, the ability of the cardiovascular system to adjust to exercise, and to ageing.…”