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Exercise for overweight and obese women: A multimodal pilot intervention comparing in-person with phone-based delivery of guided imagery

Physical inactivity and sedentary behaviour are global public health challenges and are associated with approximately 6% of deaths worldwide. Physical activity begins to decline in late adolescence and continues to decrease throughout adulthood with adult women reporting less activity than men. This 10-week pilot study tested a peer-delivered multi-modal psycho-social intervention with overweight and obese women and compared fitness and psycho-social outcomes by manipulating the delivery mechanism: in-person versus telephone. Thirty-three overweight or obese women were randomised to fitness centre or telephone-tailored counselling for the 10-week intervention. Twenty-two women completed the study (Mage = 20.73, SD = 2.07) with an average body mass index of 29.82 (SD = 5.01). Significant improvements were observed in ratings of perceived exertion during a three-minute step-test, self-determined motivation to exercise, imagery usage, and coping self-efficacy with no between-group differences.