title: Rapid weight loss alters muscular performance and perceived exertion as well as postural control in elite wrestlers.
abstract: OBJECTIVE
  The aim was to assess the effects of rapid decline of body mass on postural control, muscular performance and rating perceived exertion in elite free style wrestlers.
  
  
  METHODS
  Ten high-level wrestlers (age: 19.3 ± 2.5 years, height: 175.7 ± 4.9 cm, body mass before dieting: 77.16 ± 11.94 kg) are included in the present study. Diet was monitored for all the athletes. Athropometric measurements and a variety of functional tests such as isometric hand grip strength (IHG) and isometric back strength (IBS) with dynamometers, dynamic postural control (DPC) with star excursion balance test, and rating of perceived exertion (RPE) to a standard exercise of knee pushups, were performed before and after diet completion.
  
  
  RESULTS
  The diet was based on food restriction and dehydration. Body mass, lean body mass and body water significantly decreased (P<0.001; P<0.004, P<0.001 respectively). There was no significant decrease in fat mass (P<0.061). Furthermore, IHG and IBS significantly decreased (P<0.001). DPC significantly altered with the left supporting leg in two positions of the right leg (posteromedial, P<0.038; posterior, P<0.012). At last, RPE significantly increased (P<0.001).
  
  
  CONCLUSIONS
  Previous studies showed that the rapid decline of body mass affects health and muscular and energetic performance while the present study highlights that it also alters perceived exertion and dynamic postural control.
authors: Analysis and Evaluation of the Performance Determinance, ISSEP Ksar Saïd, Manouba University, Manouba, Tunisia - Thierry.paillard@univ-pau.fr.
authors: M C
authors: MC
authors: Jlid
authors: N
authors: N
authors: Maffulli
authors: M
authors: M
authors: Elloumi
authors: W
authors: W
authors: Moalla
authors: T
authors: T
authors: Paillard
mesh_terms: D004038:Diet, Reducing / Q000009:adverse effects; D006801:Humans; D008297:Male; D053580:Muscle Strength / Q000502:physiology*; D005082:Physical Exertion / Q000502:physiology*; D004856:Postural Balance / Q000502:physiology*; D015431:Weight Loss / Q000502:physiology*; D014952:Wrestling / Q000502:physiology*; D055815:Young Adult