title: Indirect calorimetry in obese female subjects: Factors influencing the resting metabolic rate.
abstract: OBJECTIVE
  To evaluate selected factors influencing resting energy expenditure (REE) in obese female subjects.
  
  
  METHODS
  Seventy seven 61 obese Caucasian women [mean age of 52.93 ± 13.45 years, and mean body mass index (BMI) of 41.78 ± 11.54 kg/m(2)] were enrolled; measurements of resting metabolic rate (RMR) by a ventilated, open-circuit system, indirect calorimeter were performed after an overnight fast. Body composition as well as medications, physical parameters, blood samples, disease pattern, and smoking were considered.
  
  
  RESULTS
  RMR was significantly associated with body weight (r = 0.732, P < 0.001), body height (r = 0.401, P = 0.008), BMI (r = 0.504, P < 0.001), waist circumference (r = 0.602, P < 0.001), mid-upper arm circumference (r = 0.417, P = 0.006), mid-upper arm muscle circumference (r = 0.344, P = 0.028), total body water (r = 0.339, P = 0.035), body temperature (r = 0.409, P = 0.007), smoking (P = 0.031), serum T4 levels (r = 0.331, P = 0.036), obstructive sleep apnoea syndrome (OSAS; P = 0.023), impaired glucose tolerance (IGT; P = 0.017) and impaired glycaemic status, including hyperinsulinism, IGT and diabetes mellitus (P = 0.003).
  
  
  CONCLUSIONS
  Future research should be prompted to optimize the procedure of indirect calorimetry to achieve clinical benefits in obese subjects.
authors: Theresa Hagedorn, Claudia Savina, Cecilia Coletti, Maddalena Paolini, Luciano Scavone, Rehabilitation Clinical Institute "Villa delle Querce", Nemi, 00040 Rome, Italy.
authors: Theresa
authors: T
authors: Hagedorn
authors: Theresa Hagedorn, Claudia Savina, Cecilia Coletti, Maddalena Paolini, Luciano Scavone, Rehabilitation Clinical Institute "Villa delle Querce", Nemi, 00040 Rome, Italy.
authors: Eleonora
authors: E
authors: Poggiogalle
authors: Theresa Hagedorn, Claudia Savina, Cecilia Coletti, Maddalena Paolini, Luciano Scavone, Rehabilitation Clinical Institute "Villa delle Querce", Nemi, 00040 Rome, Italy.
authors: Claudia
authors: C
authors: Savina
authors: Theresa Hagedorn, Claudia Savina, Cecilia Coletti, Maddalena Paolini, Luciano Scavone, Rehabilitation Clinical Institute "Villa delle Querce", Nemi, 00040 Rome, Italy.
authors: Cecilia
authors: C
authors: Coletti
authors: Theresa Hagedorn, Claudia Savina, Cecilia Coletti, Maddalena Paolini, Luciano Scavone, Rehabilitation Clinical Institute "Villa delle Querce", Nemi, 00040 Rome, Italy.
authors: Maddalena
authors: M
authors: Paolini
authors: Theresa Hagedorn, Claudia Savina, Cecilia Coletti, Maddalena Paolini, Luciano Scavone, Rehabilitation Clinical Institute "Villa delle Querce", Nemi, 00040 Rome, Italy.
authors: Luciano
authors: L
authors: Scavone
authors: Theresa Hagedorn, Claudia Savina, Cecilia Coletti, Maddalena Paolini, Luciano Scavone, Rehabilitation Clinical Institute "Villa delle Querce", Nemi, 00040 Rome, Italy.
authors: Barbara
authors: B
authors: Neri
authors: Theresa Hagedorn, Claudia Savina, Cecilia Coletti, Maddalena Paolini, Luciano Scavone, Rehabilitation Clinical Institute "Villa delle Querce", Nemi, 00040 Rome, Italy.
authors: Lorenzo Maria
authors: LM
authors: Donini
keywords: Indirect calorimetry; Obesity; Resting energy expenditure; Resting metabolic rate