Jong-Woo Choi|Ji Hyeon Lee|Eric Vittinghoff|Yoshimi Fukuoka
mHealth Physical Activity Intervention: A Randomized Pilot Study in Physically Inactive Pregnant Women
Institute on Aging|University of California, San Francisco|Columbia University|University of California, San Francisco|University of California, San Francisco
introduction physical inactivity prevalent pregnant women innovative strategies promote physical activity strongly needed purpose study test 12week mobile health mhealth physical activity intervention feasibility potential efficacy methods participants recruited december 2012 february 2014 using diverse recruitment methods thirty pregnant women 10 20 weeks gestation randomized intervention mobile phone app plus fitbit control fitbit group conditions targeted gradual increases physical activity mhealth intervention included daily messages mobile phone activity diary automated feedback selfmonitoring systems results monthly average 4 women screened initial eligibility telephone 25 randomized intervention participants 1096 1898 step increase daily steps compared increase 259 1604 steps control participants 12 weeks change groups weekly mean steps per day 12week study period statistically significant p 038 intervention group reported lower perceived barrier active lack energy control group 12week visit p 002 rates responding daily messages using daily diary mobile app declined 12 week study period discussion difficult recruit randomize inactive women wanted increase physical activity pregnancy pregnant women motivated increase physical activity might find using mobile technologies assessing promoting pa acceptable possible reasons nonsignificant treatment effect mhealth intervention physical activity discussed public awareness safety benefits physical activity pregnancy promoted clinicaltrialsgov identifier nct01461707