Physical discomfort intolerance as a predictor of weight loss and physical activity in a lifestyle modification program.

Abstract

This study examined physical discomfort intolerance (DI) as a baseline predictor of weight loss and physical activity outcomes, and assessed whether changes in DI during the initial phase of weight loss prospectively predicted long-term treatment outcomes among adults enrolled in a group-based lifestyle modification program for obesity. DI was measured at baseline and 6months, and weight and accelerometer-measured physical activity were assessed at baseline, 6months, and 12months. Baseline DI was not related to weight loss or physical activity at either timepoint. Change in DI during the first 6months of treatment was not related to concurrent (i.e., 6-month) weight loss and physical activity, but was significantly predictive of weight loss and physical activity at 12months. Assessing early changes in DI may help to identify individuals at risk for suboptimal outcomes. Future research should evaluate behavioral weight loss interventions designed to target DI.