Physical activity rates in rural women are very low. The purpose of this study was to explore the determinants of physical activity in rural women aged 20 to 44 years. A survey was used to collect data on a cluster sample of 184 participants. This study was guided by Self-Determination Theory. Survey data suggest that the highest type of motivation was identified regulation, and husband's support had the strongest effect on physical activity. Findings suggest that a history of sports participation can lead to the formation of intrinsic motivation. The results will assist in developing effective physical activity interventions.