title: Resistance training enhances muscular performance in patients with anorexia nervosa: a randomized controlled trial.
abstract: OBJECTIVE
  Low-intensity exercise applied in anorexia nervosa patients has been shown to have a harmless effect on body composition and to effect short-term improvements in muscular strength and agility. The aim of this study was to determine the effects of a high-intensity resistance training program designed for adolescents to improve strength and agility in anorexia nervosa restricting-type patients (AN-R).
  
  
  METHODS
  From a total of 36 female patients with AN-R, one group (intervention, n = 18) underwent a supervised high-intensity resistance training program lasting 8 weeks, and the other group with no exercise (control, n = 18). Body weight, body mass index, whole-body muscular strength, and agility were assessed before, after, and 4 weeks after training (detraining).
  
  
  RESULTS
  Leg-press, bench-press, and lateral row tests improved significantly (p < 0.001) after 8 weeks of training compared with controls. Improvements were maintained after the detraining period. The training program also showed beneficial effects on agility.
  
  
  CONCLUSIONS
  A high-intensity resistance training program adapted to the recommendations for adolescents in AN-R patients was effective and safe, improving muscular strength in the whole body and the ability to perform daily tasks. However, long-term maintenance of gains seems to be linked to the continuance of training or the use of a maintenance program.
authors.affiliation: Department of Health, Exercise Sport and Sciences, Texas Tech University, Lubbock, Texas.
authors.forename: Maria
authors.initials: M
authors.lastname: Fernandez-del-Valle
authors.forename: Eneko
authors.initials: E
authors.lastname: Larumbe-Zabala
authors.forename: Angel
authors.initials: A
authors.lastname: Villaseñor-Montarroso
authors.forename: Claudia
authors.initials: C
authors.lastname: Cardona Gonzalez
authors.forename: Ingnacio
authors.initials: I
authors.lastname: Diez-Vega
authors.forename: Luis Miguel
authors.initials: LM
authors.lastname: Lopez Mojares
authors.forename: Margarita
authors.initials: M
authors.lastname: Perez Ruiz
mesh_terms: D000293:Adolescent; D000704:Analysis of Variance; D000856:Anorexia Nervosa / Q000503:physiopathology* / Q000628:therapy; D015992:Body Mass Index; D001835:Body Weight; D002648:Child; D005260:Female; D006801:Humans; D009048:Motor Skills; D053580:Muscle Strength; D055070:Resistance Training
keywords: agility test; anorexia nervosa; body mass index; detraining; resistance training; restricting type; strength test