Body Composition Analysis and Changes in Airways Function in Obese Adults After Hypocaloric Diet

ResumoObjetivo: Embora a obesidade tenha sido associada ao comprometimento grave da ventilação, a maior parte da população estudada constitui-se de adultos com obesidade mórbida. Nosso objetivo foi investigar os efeitos da obesidade leve na função ventilatória de pacientes pediátricos.Métodos: Estudo transversal controlado que analisou 80 pacientes (M/F: 35/45) avaliados em nosso ambulatório, com queixa de sobrepeso, sem histórico de asma ou de outras atopias, comparando-os a um grupo controle com 50 crianças de peso normal controladas para a idade e para o sexo. A média de idade dos pacientes foi de 9,7±2,5 anos (7 a 15 anos). AbstractObjective: Although obesity was found to be associated with severe impairment of ventilation, most of the study population has been morbidly obese adults. We aimed to explore the effects of mild obesity on ventilatory function in the pediatric age group. Methods:In a cross-sectional controlled study, 80 patients (M/F: 35/45), who were evaluated in our outpatient clinic with the complaint of excess body weight, with no history of asthma or other atopic diseases were studied and compared to a control group of 50 normal weight children controlled for age and sex. The mean age of patients was 9.7±2.5 years (7 to 15 years). Anthropometric measurements and spirometry were performed in all subjects. Forced vital capacity (FVC) and forced expiratory volume in 1 second (FEV1) were used as measures of ventilatory function.Results: There were no significant differences in FEV1%, FVC% and FEV1%/FVC% by study group (p > 0.05). Only three patients had obstructive abnormalities documented on their pulmonary function tests (two had moderately severe and one had mild obstructive abnormalities).No correlation was observed between pulmonary function parameters and anthropometric measurements.Conclusion: These data demonstrate that pulmonary function test parameters of the mildly obese children were similar to those of the normal weight children. Anthropometric measurements had no significant effect on spirometric measurements in children as they did on adults.J Pediatr (Rio J). 2007;83(2):171-176: Obesity, ventilatory function, spirometry.

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“…Vários estudos demonstraram uma associação entre obesidade e alterações na ventilação em adultos [10][11][12] . Todavia, …”

Section: Discussionunclassified

Impact of obesity on ventilatory function

et al. 2007

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“…Especially in severely obese people, a negative correlation was found between BFMand lung functions, whereas FFM positively correlated with pulmonary functions (18,19). In adults, a negative correlation was observed between upper body lipoidosis and respiratory functions (20).…”

Section: Discussionmentioning

confidence: 89%

“…In the study by Lorenzo et al (19), it has been reported that there was an improvement in airway limitation with a reduction in total body fat after following a diet and the largest improvement was seen in the FEF25-75% value. In our study, the FEF25-75% value was found to be correlated with BFP.…”

Section: Discussionmentioning

confidence: 96%

Determination of the Relationship between the Body Composition and Pulmonary Function in Obese Individuals

Güzel¹,

Aydemir²,

Akdemir³

et al. 2016

Eurasian J Pulmonol

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Objective: Body mass index (BMI) is used as a basic parameter in assessing obesity. However, BMI is not sensitive in the assessment of body fat percentage (BFP) and body fat distribution (BFD). The aim of this study is to determine the effect of BFP and BFD on the pulmonary functions and compare this effect with BMI. Methods:This study was conducted with a total of 170 volunteers. BMI, waist-to-hip ratio (WHR), and BFPs of healthy normal weight, overweight, and obese individuals were measured and their pulmonary function tests were statistically compared with each other. Results:There was no significant relationship between BMI increase and pulmonary function test results of the individuals. There were significant correlations between BFP increase and forced expiratory volume (FEV 1 %) and forced expiratory flow between 25% and 75% of FVC (FEF25-75%). In the male patients, FEV 1 % value was negatively correlated with waist circumference. In female patients, WHR was positively correlated with FEV 1 /forced vital capacity (FVC), FEV 1 /FVC%, whereas it was negatively correlated with FEV 1 % values. Conclusion:Because the widely used BMI is incapable of distinguishing BFP and BFD, it can be insufficient for evaluating the lung functions.Therefore, determining the body composition is important in the evaluation of obese individuals.

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“…Ratings of perceived exertion are generally believe to be valid and reliable markers of physiological intensity during exercise and were recommended to monitor exercise intensity (Janice et al, 2002) 27 .…”

Section: Subjectsmentioning

confidence: 99%