title: Soy protein based supplementation supports metabolic effects of resistance training in previously untrained middle aged males.
abstract: OBJECTIVE
  To determine changes in body composition, physical performance, metabolic and hormonal parameters induced by lifestyle counselling, resistance training and resistance training with soy protein based supplemention in middle aged males.
  
  
  METHODS
  Randomised controlled study consisting of resistance training without (RT-G) or with (RTS-G) a soy protein based supplement and a control group with lifestyle education only (LE-G).
  
  
  METHODS
  Forty healthy middle aged men (50-65 years, BMI 25-29.9 kg/m2).
  
  
  METHODS
  Changes in body weight (BW) and waist circumference (WC) were measured and body composition (BC), fat mass (FM), lean body mass (LBM) were measured by skin fold anthropometry at baseline and after 12 weeks of intervention. In addition, changes in physical fitness, metabolic and hormonal parameters (lipids, glucose, fructosamines, insulin, insulin-like growth factor-1, Leptin, human growth hormone, dehydroepiandrosterone, testosterone, hs-CRP, Il-6) were evaluated.
  
  
  RESULTS
  Thirty-five participants completed the 12 week study. No significant changes in BW were noted although RM and WC dropped and LBM increased after training, particularly in the RTS group (FM 22.6 ± 5.5 kg to 21.2 ± 4.7 kg; LBM 68.5 ± 7.2 kg to 70.1 ± 7.4; p < 0.01). Subjects in the RTS group experienced more pronounced improvements in the strength measurements than the RT group. After the training intervention there were significant changes in hormonal and metabolic parameters as well as in glycemic control, particularly in the RTS group.
  
  
  CONCLUSIONS
  Our data suggest that resistance training, particularly in combination with a soy protein based supplement improves body composition and metabolic function in middle aged untrained and moderately overweight males.
authors: Department of Rehabilitative and Preventive Sports Medicine, University Hospital, Freiburg, Germany.
authors: Peter
authors: P
authors: Deibert
authors: Florian
authors: F
authors: Solleder
authors: Daniel
authors: D
authors: König
authors: Mara Z
authors: MZ
authors: Vitolins
authors: Hans-Hermann
authors: HH
authors: Dickhuth
authors: Albert
authors: A
authors: Gollhofer
authors: Aloys
authors: A
authors: Berg
mesh_terms: D000368:Aged; D001786:Blood Glucose / Q000502:physiology; D001823:Body Composition / Q000502:physiology; D015992:Body Mass Index; D002097:C-Reactive Protein / Q000032:analysis; D003687:Dehydroepiandrosterone / Q000097:blood; D019587:Dietary Supplements; D019270:Fructosamine / Q000097:blood; D019382:Human Growth Hormone / Q000097:blood; D006801:Humans; D007328:Insulin / Q000097:blood; D015850:Interleukin-6 / Q000097:blood; D020738:Leptin / Q000097:blood; D008055:Lipids / Q000097:blood; D008297:Male; D008875:Middle Aged; D010809:Physical Fitness / Q000502:physiology; D055070:Resistance Training; D030262:Soybean Proteins / Q000008:administration & dosage*; D013739:Testosterone / Q000097:blood
chemical_list: D001786:Blood Glucose; C508600:IL6 protein, human; D007328:Insulin; D015850:Interleukin-6; D020738:Leptin; D008055:Lipids; D030262:Soybean Proteins; D019382:Human Growth Hormone; D013739:Testosterone; D019270:Fructosamine; D003687:Dehydroepiandrosterone; D002097:C-Reactive Protein