Rationale and design of Smart Walk: A randomized controlled pilot trial of a smartphone-delivered physical activity and cardiometabolic risk reduction intervention for African American women.
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BACKGROUND African American AA women perform low levels of physical activity PA and are disproportionally burdened by cardiometabolic disease conditions when compared to White women and the U S population as a whole These disparities emphasize the need for innovative and effective interventions to increase PA and reduce cardiometabolic disease risk among AA women Recent evidence suggests that mobile health mHealth interventions have the potential to increase PA and reduce cardiometabolic disease risk factors Few studies have examined the efficacy of mHealth PA interventions among racial ethnic minorities including AA women This represents a missed opportunity given the reported success of technology delivered PA interventions in predominately White populations and the high use of technology among AA women OBJECTIVE To describe the design theoretical rationale and cultural relevance of Smart Walk a culturally sensitive smartphone delivered PA intervention for AA women DESIGN AND METHODS Smart Walk is an 8 month randomized controlled pilot trial designed to increase PA and reduce cardiometabolic disease risk among AA women Sixty physically inactive AA women with obesity will be assigned to receive either a culturally relevant intervention designed to increase PA by targeting leisure time household chore task related and occupational PA or a culturally relevant wellness attention matched control condition Outcomes will be assessed at baseline 4 months and 8 months and include feasibility and acceptability of the PA intervention and evaluation of effects on PA and cardiometabolic risk factors SUMMARY Smart Walk represents a culturally relevant theory based approach to promote PA and reduce cardiometabolic disease risk in AA women