Effect of physical exercise on work ability and daily strain in symptomatic menopausal women - a randomized controlled trial

Background: Menopause related symptoms modify quality of life and work ability. The aim of this study was to investigate the effects of exercise on work ability and other work-related outcomes among women with menopausal symptoms.  

Methods:  One hundred and twenty-three sedentary women (age range 44 to 62 years) with vasomotor hot flushes were randomized into aerobic training intervention and control groups. The intervention group followed a self-administered training programme involving moderate-intensity aerobic exercise 4 times a week for 6 months. Mobile phone questionnaires were used to collect data on daily perceived physical and mental strain. Work ability was measured with the work ability index (WAI) and with work ability in relation to physical and mental work demands and mental resources  

Results:  Between-group differences in change in WAI from baseline to end were statistically non- significant (adjusted b=0.97, p=NS). The increase in mental resources (b=0.58, p<0.01) and decrease in physical strain (b=-0.26, p<0.01) from baseline to end were statistically significantly greater among the intervention group than among the control group, even after adjustment for baseline, age and work demands.  

Discussion:  An increase in physical exercise may improve the possibility for symptomatic menopausal women to cope with mental and physical work demands.