PT - JOURNAL ARTICLE AU - Wilaiwan Khrisanapant AU - Orapin Pasurivong AU - Tunda Suthitum AU - Jureeporn Namarmarth TI - Influence of aerobic exercise training on respiratory muscle strength in obese Thai women DP - 2011 Sep 01 TA - European Respiratory Journal PG - p2107 VI - 38 IP - Suppl 55 4099 - http://erj.ersjournals.com/content/38/Suppl_55/p2107.short 4100 - http://erj.ersjournals.com/content/38/Suppl_55/p2107.full SO - Eur Respir J2011 Sep 01; 38 AB - Obesity is one of major risk factors for developing several respiratory diseases which is probably linked to respiratory muscle impairment. This study aimed to determine whether aerobic exercise training improves respiratory muscle strength (RMS) in obese women. Inspiratory pressure from residual volume (PImaxRV) or function residual capacity (PImaxFRC), sniff nasal inspiratory pressure (Pnsn) and maximal expiratory pressure (PEmax) were measured in 13 obese women pre- and post-aerobic exercise training programme performed at least 30 min per session; 3 sessions per week for 12 weeks. Results showed that aerobic exercise training significantly reduced body mass indices (BMI) (29.8±2.9 vs. 28.7±2.9 kg/m2, fat mass (27.1±3.8 vs. 23.9±3.76 kg) and body fat (37.3±2.5 vs. 34.2±2.5%} (p<0.001) whereas fat free mass did not alter. Compared with pre-exercise, RMS was significantly greater in post-exercise (p<0.001), e.g. absolute PImaxRV (126.1±25.2 vs. 116.±28.8 cmH2O), PImaxFRC (119.8±26.4 vs. 105.8.1±1524.8 cmH2O), Pnsn (113.2±122.1 vs. 98.1±21.2 cmH2O) and PEmax (127.3±24.7 vs. 119.8±26.4 cmH2O). The data suggest that aerobic exercise training in obese women studied appears to increase the RMS which may be, partly, a consequence of decreased fat mass and body fat.