Moved to Atlanta The National Physical Activity Society moved to Atlanta at the beginning of 2014. National Physical Activity Plan The National Physical Activity Plan outlines strategies needed to improve public health via physical activity. The Society is a board member of the National Physical Activity Plan Alliance. APHA Physical Activity Section Physical Activity is one of 29 approved sections at APHA. Walking in 2014 In 2014, the physical activity community is taking a look at walkability and messages to increase walking. Visit our partner America Walks for resources. Welcome Spring: Walk or bike to see the flowers.