title: Physical activity and post-treatment weight trajectory in anorexia nervosa.
abstract: This study compared an objective measurement of physical activity (PA) in individuals with anorexia nervosa (AN) at low-weight, weight-restored, and post-treatment time points, and also compared PA in AN with that of healthy controls (HC).
  
  
  
  Sixty-one female inpatients with AN wore a novel accelerometer (the IDEEA) which measured PA at three time points: a) low-weight, b) weight-restored, and c) one month post-hospital discharge. Twenty-four HCs wore the IDEEA at one time point.
  
  
  
  Inpatients with AN became more physically active than they were at low-weight at weight restoration and following treatment discharge. Post-treatment patients with AN were more physically active than HCs during the day and less active at night, which was primarily accounted for by amount of time spent on feet, including standing and walking. Greater time spent on feet during the weight-restoration time point of inpatient treatment was associated with more rapid decrease in BMI over the 12 months following treatment discharge. Fidgeting did not differ between patients and controls, did not change with weight restoration, and did not predict post-treatment weight change.
  
  
  
  Use of a novel accelerometer demonstrated greater PA in AN than in HC. PA following weight restoration in AN, particularly time spent in standing postures, may contribute to weight loss in the year following hospitalization. © 2015 Wiley Periodicals, Inc. (Int J Eat Disord 2016; 49:482-489).
authors.affiliation: Department of Psychiatry, Columbia University Medical Center, New York State Psychiatric Institute, 1051 Riverside Drive, Unit 98, New York, New York.
authors.forename: Loren M
authors.initials: LM
authors.lastname: Gianini
authors.affiliation: Department of Psychiatry, New York University Langone Medical Center, One Park Avenue, 8-131, New York, New York.
authors.forename: Diane A
authors.initials: DA
authors.lastname: Klein
authors.affiliation: Department of Psychology, Drexel University, 3141 Chestnut Street, Philadelphia, Pennsylvania.
authors.forename: Christine
authors.initials: C
authors.lastname: Call
authors.affiliation: Department of Psychiatry, Columbia University Medical Center, New York State Psychiatric Institute, 1051 Riverside Drive, Unit 98, New York, New York.
authors.forename: B Timothy
authors.initials: BT
authors.lastname: Walsh
authors.affiliation: Department of Psychiatry, Columbia University Medical Center, New York State Psychiatric Institute, 1051 Riverside Drive, Unit 98, New York, New York.
authors.forename: Yuanjia
authors.initials: Y
authors.lastname: Wang
authors.affiliation: Department of Psychiatry, Columbia University Medical Center, New York State Psychiatric Institute, 1051 Riverside Drive, Unit 98, New York, New York.
authors.forename: Peng
authors.initials: P
authors.lastname: Wu
authors.affiliation: Department of Psychiatry, Columbia University Medical Center, New York State Psychiatric Institute, 1051 Riverside Drive, Unit 98, New York, New York.
authors.forename: Evelyn
authors.initials: E
authors.lastname: Attia
mesh_terms: D000293:Adolescent; D000328:Adult; D000856:Anorexia Nervosa / Q000628:therapy*; D001835:Body Weight / Q000502:physiology; D016022:Case-Control Studies; D015444:Exercise / Q000502:physiology*; D005260:Female; D006760:Hospitalization; D006801:Humans; D007297:Inpatients; D018670:Monitoring, Ambulatory; D010351:Patient Discharge; D013851:Thinness / Q000503:physiopathology; D016138:Walking / Q000502:physiology; D055815:Young Adult
keywords: anorexia nervosa; eating disorders; exercise; physical activity; treatment outcome