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Background  This study assessed the perceived benefits and barriers to exercise participation in overweight and obese women with polycystic ovary syndrome (PCOS) and monitored changes in response to a lifestyle intervention.    Methods  Forty-three overweight/obese PCOS women (Age, 30.3(6.2) yrs; BMI, 36.4(5.6) kg/m 2 ) were randomised to one of three 20-week lifestyle programs: diet only (DO,  n  = 13), diet and aerobic exercise (DA,  n  = 11) and diet and combined aerobic-resistance exercise (DC,  n  = 19). Exercise Benefits/Barriers Scale (EBBS), weight, aerobic fitness, depression and PCOS specific health-related quality of life were measured.    Results  Barriers score was related to depression ( r  = 0.45,  P  = 0.002) and aerobic fitness ( r  = −0.32,  P  = 0.04), while benefits score was related to aerobic fitness ( r  = 0.41,  P  = 0.007). EBBS, benefits and barriers scores improved overtime ( P  ≤ 0.001). Benefits subscales psychological outlook and social interaction increased ( P  ≤ 0.001) and life enhancement and preventative health did not change ( P  ≥ 0.3). Physical performance increased only in DA ( P  = 0.009). There were no differences between treatments for any of the other subscales ( P  ≥ 0.2). Barriers subscales exercise milieu, time expenditure and physical exertion reduced ( P  ≤ 0.003) and family discouragement did not change ( P  = 0.6).    Conclusions  This study demonstrated that lifestyle modification consisting of an energy-restricted diet with or without exercise training improved the perceived benefits from and barriers to exercise.    Trial registration  Australian New Zealand Clinical Trials Register  ACTRN12606000198527 , registered 26 May 2006

bmc women's health

Perceived exercise barriers are reduced and benefits are improved with lifestyle modification in overweight and obese women with polycystic ovary syndrome: a randomised controlled trial