Relationship between obesity and respiratory muscle strength, functional capacity, and physical activity level in patients with chronic obstructive pulmonary disease Kroni̇k obstrükti̇f akci̇ǧer hastalarinda obezi̇teni̇n solunum kas kuvveti̇, fonksi̇yonel kapasi̇te ve fi̇zi̇ksel akti̇vi̇te düzeyi̇ i̇le i̇li̇şki̇si̇ özet


Fizyoterapi Rehabilitasyon, vol.24, no.3, pp.157-162, 2013 (Peer-Reviewed Journal) identifier

  • Publication Type: Article / Article
  • Volume: 24 Issue: 3
  • Publication Date: 2013
  • Journal Name: Fizyoterapi Rehabilitasyon
  • Journal Indexes: Science Citation Index Expanded, Scopus, TR DİZİN (ULAKBİM)
  • Page Numbers: pp.157-162


Purpose: A high body mass index (BMI) provides an advantage for survival in patients with chronic obstructive pulmonary disease (COPD). The aim of this study was to investigate the effects of obesity on respiratory muscle strength, exercise capacity, and physical activity level in patients with COPD. Materials and Methods: Twenty-eight male COPD patients (age: 63.07±6.32 years, FEV1: 36.9±11.0%) participated in this study. The subjects were divided into two groups as overweight/obese (25≤BMI≤34.9 kg/m 2, n=14) and normal (18.5≤BMI≤24.9 kg/m2, n=14). Pulmonary function testing and six-minute walk test were performed. Respiratory muscle strength was evaluated using a portable mouth pressure device. Physical activity level of the subjects was determined using an accelerometer. Results: Airway obstruction level was similar in both groups (p>0.05). Overweight/obese COPD patients' inspiratory muscle strength (94.57±18.72 cmH2O), expiratory muscle strength (155.07±42.86 cmH 2O), and physical activity level (319.3 kcal/day) were statistically higher than patients with a normal BMI (inspiratory muscle strength: 79.64±26.14 cmH2O, expiratory muscle strength: 124.36±23.70 cmH2O, and physical activity level: 275.9 kcal/days, p<0.05). There was no significant difference in 6-minute walk distance between both groups, however work done during the test was significantly higher in overweight/obes group (3037.0±8662.91 kg/m ve 4240.3±10372.59 kg/m, p<0.05). Conclusion: Being overweight or obese preserves respiratory muscle strength in COPD. Although physical activity level of obese/overweight patients was higher than those of normal weight group, both groups had an insufficient physical activity levels. The clinical condition caused by being overweight or obese patients with COPD can provide a better prognosis.