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Figure 2.Predicted weight change over time by PAL change category among men in the Aerobic Center Longitudinal Study (ACLS) cohort. PAL=average daily physical activity level expressed as the ratio of total energy expenditure to the resting metabolic rate (TEE/RMR). Models adjusted for age, sex, height, baseline weight, and smoking. DiPietro, et al. Int J Obesity. 28:1541-1547, 2004.