Employees from participating worksites will be invited to completed surveys prior to and following implementation of a workplace wellness program (called "POWERPLAY")

Minutes of Moderate to Vigorous physical activity will be assessed using self-report at baseline and follow-up using the Godin Leisure-Time Exercise Questionnaire (Godin & Shephard, 1985). The Godin Leisure-Time Exercise Questionnaire contains three self-report questions that assess both the average frequency and duration (in minutes) of mild, moderate, and vigorous activities during free time over a typical week. Frequency and minutes are multiplied to obtain minutes per week (range from 0 and up). Weekly moderate and vigorous activity minutes will be summed and compared from baseline to follow-up, with higher scores indicating more activity. In addition, a cutoff of 150 minutes in 7 days will be used to classify participants as meeting or not meeting Canadian guidelines for physical activity at baseline and follow-up.

Mental well-being will be assessed using the well validated Short Warwick-Edinburgh Mental Well-Being Scale (SWEMWBS) (Haver, Akerjordet, Caputi, Furunes, & Magee, 2015; Tennant et al., 2007) at baseline and follow-up. Participants respond to 7-items (e.g., "I've been feeling optimistic about the future") on a 5-point Likert scale ranging from none of the time (1) to all of the time (5), with higher scores reflecting greater mental well-being. The SWEMWBS is scored by summing the score for each of the seven items (possible range 7-35).