Influencia de la obesidad infantil en la función pulmonar y en la capacidad cardiorespiratoria

  1. Valente, Nelson André Alcácer
Supervised by:
  1. Marcos Antonio Maynar Mariño Director
  2. João Paulo Reis Gonçalves Moreira de Brito Director

Defence university: Universidad de Extremadura

Fecha de defensa: 11 October 2013

Committee:
  1. José Antonio Pariente Llanos Chair
  2. António Manuel da Silva Moreira Secretary
  3. Armando Manuel Mendoça Raimundo Committee member
  4. Argimiro Rodríguez Jerez Committee member
  5. Guillermo Jorge Olcina Camacho Committee member

Type: Thesis

Teseo: 350346 DIALNET

Abstract

Objective: The objectives are to study the prevalence of obesity in children and evaluate the influence of body composition on pulmonary function (PF) and cardio respiratory capacity (CRC). Sample: 1564 children (n = 792 ?: Age, 7.79 ±1.23 years, BMI, kg/m2 and 17.94 ±2.94 ? n = 772 age 7.73 ±1.21 years, BMI 17.74 ±2.73 kg/m2). This universe 572 children were evaluated in lung function (n = 295 ?; FVC%, 15.54% and 96.18 ±? n = 277, 99.14% FVC ±14.10%). CCR were evaluated in 234 children (n = 113 ?: 55.75 VO2.peak ±8.82 ml / kg / min, n = 121 ?: 48.02 VO2.peak ±7.22 ml / kg / min). Methodology: Childhood obesity was classified by BMI. The PF characterized by forced vital capacity (FVC) measured by spirometry. The peak maximum oxygen consumption (peak VO2) was measured directly by a portable gas analyzer. Results: In the BMI categories by gender, there are higher percentages of relevance excessive weight, overweight (OW) and obesity (OB), for males (40.1%) compared to females 33.9%). The FVC significantly differ (p?0.05) between males and females at ages 6, 7 and 8 years, verifying higher values in males for their respective ages. Most of the population (85.1% of boys and 88.8% girls) presents values above 80% predicted. The FVC significantly differ (p?0.05) between males and females in the categories of NW, OW and OB, verifying higher values in males, values which increase with the increasing of BMI. Compared VO2peak between genders in the different BMI categories, there were differences (p?0.05) between the genders in the categories of NW, OW and OB. There was a moderate negative correction (p?0.01) between BMI and VO2peak. Conclusions: In the pediatric population studied it was found that 37% are overweight and 15.6% is obese. Anthropometric parameters showed no significant effect on lung function. The boys in the different BMI categories have higher values VO2peak. It was also found that for both sexes, the average values of this parameter decreases (p?0.05) with the increasing severity of BMI.