Figure 3. Changes in Waist Circumference (WC) over Time by Low (−1 SD), Moderate (Mean), and High (+1 SD) Initial Activity Level Index (ALI) Scores when Controlling for Obesity Effects (BMI > 30).

The probing of simple slope effects demonstrated that WC significantly reduces over time in individuals with high, initial levels of activities in their daily routine (+1 SD, dashed line); a similar trend (p = .07) was apparent among those with moderate, initial ALI scores (0 SD, solid line). Individuals with low, initial levels of activities in their daily routine (−1 SD, dotted line) experienced negligible changes in WC over time.