Behavioral regulation was measured using three items adapted from Sniehotta and colleagues  for daily dog walking. The measures were scored from strongly disagree (1) to strongly agree (5). The reliability of these three items had a Cronbach’s α. = 0.76. Examples of these items included “I made detailed plans regarding what to do if something interfered with my plans to engage in dog walking over the past week” and “I made plans concerning “when”, “where”, “what” and “how” I was going to engage in regular dog walking over the past week”.