title: [Change in muscle strength in patients with anorexia nervosa during inpatient treatment--a pilot study].
abstract: OBJECTIVE
  Changes in muscular strength during treatment of inpatients suffering from anorexia nervosa were to be documented by exact measurement.
  
  
  METHODS
  The maximum strength of each side of the body was measured in 10 patients in the 1st, 2nd, 3rd, 4th, 6th, 8th and 10th weeks of inpatient treatment by means of a series of four different exercises. A well-established measurement technique, including the computer program "Quantitative Muscle Assessment", was used. All patients showed comparable symptoms of an anorexia nervosa, restricting type before admission (pure food restriction without over-exercising).
  
  
  RESULTS
  A polyphase course of the restitution of muscular strength could be seen in all patients. Since it is easily applied, the exercise "handigrip" has been used frequently elsewhere. In our study it failed to show a consistent development, in contrast to other muscle groups studied. Differences between the left and right sides could not be observed.
  
  
  CONCLUSIONS
  Patients with anorexia nervosa showed an objectively comparable inter-individual polyphase increase in the maximum strength of the muscles under investigation during weight restitution.
authors.affiliation: Abteilung für Kinder- und Jugendpsychiatrie und Psychotherapie, Klinik mit Poliklinik für Psychiatrie und Psychotherapie, Friedrich-Alexander-Universität Erlangen-Nürnberg.
authors.forename: O
authors.initials: O
authors.lastname: Kratz
authors.forename: V
authors.initials: V
authors.lastname: Roessner
mesh_terms: D000293:Adolescent; D000856:Anorexia Nervosa / Q000503:physiopathology / Q000628:therapy*; D015992:Body Mass Index; D005260:Female; D005500:Follow-Up Studies; D018737:Hand Strength / Q000502:physiology; D006801:Humans; D007537:Isometric Contraction / Q000502:physiology*; D008838:Microcomputers; D010343:Patient Admission; D012815:Signal Processing, Computer-Assisted; D012984:Software; D016896:Treatment Outcome; D015430:Weight Gain / Q000502:physiology