Measured physical activity in anorexia nervosa: Features and treatment outcome

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Objective:To assess the role of measured physical activity (PA) in anorexia nervosa treatment outcome, and to compare the PA of patients with anorexia nervosa with age-matched controls.Method:PA was assessed by means of Sense Wear Armband before and after a cognitive-behavioral inpatient treatment in 53 consecutive females with anorexia nervosa, and in 53 healthy age-matched controls.Results:At baseline, patients with anorexia nervosa exhibited a higher duration of moderate–vigorous PA (MVPA≥3 Metabolic Equivalent Tasks (METs)) than controls (t = 2.91; p = .004). Dropouts had higher duration (sec) and expenditure (kcal·day−1) of MVPA than completers. At the end of treatment, completers had a higher number of daily steps, MVPA duration, and expenditure than controls. However, PA was not correlated to eating disorder psychopathology either before or after treatment.Discussion:PA is higher in patients with anorexia nervosa than age-matched controls both before and after treatment, and is associated with treatment dropout. © 2013 Wiley Periodicals, Inc. (Int J Eat Disord 2013; 46:709–712)

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