GH Responsiveness before and after a 3-Week Multidisciplinary Body Weight Reduction Program Associated with an Incremental Respiratory Muscle Endurance Training in Obese Adolescents

A. E. Rigamonti, F. Agosti, A. Patrizi, G. Tringali, R. Fessehatsion, S. G. Cella, A. Sartorio

Research output: Contribution to journalArticle

Abstract

Several studies have demonstrated that the obesity-related hyposomatropism is usually reversible after a consistent weight loss induced by diet and/or bariatric surgery. Recently, a single bout of respiratory muscle endurance training (RMET) by means of a specific commercially available device (Spiro Tiger®) has been reported to induce a marked GH response in obese adults, its GH-releasing effect being significantly lower in obese adolescents. The GH response disappeared in both obese adults and adolescents when RMET was repeated at 2-h intervals in-between. The aim of the present study was to evaluate GH responses to repeated bouts of RMET administered before and after a 3-week in-hospital multidisciplinary body weight reduction program (entailing energy-restricted diet, 90 min/daily aerobic physical activity, psychological counseling, and nutritional education) combined with a progressively increasing RMET (15 daily sessions, 5 sessions per week) in 7 obese male adolescents [age: 12-17 years; body mass index (BMI): 38.5±3.1 kg/m2; percent fat mass (FM): 37.0±2.0%]. Blood samplings for GH determinations were collected during the 1st and 15th sessions, which were composed of 2 consecutive bouts of RMET (of identical intensity and duration) at 2-h interval in-between. At the beginning of the study, baseline GH levels significantly increased after the first bout of RMET in all subjects (p

Original languageEnglish
Pages (from-to)59-64
Number of pages6
JournalHormone and Metabolic Research
Volume46
Issue number1
DOIs
Publication statusPublished - Jan 2014

Keywords

  • energy-restricted diet
  • GH
  • obesity
  • repeated bouts
  • respiratory muscle Âendurance training
  • weight loss

ASJC Scopus subject areas

  • Biochemistry
  • Endocrinology
  • Clinical Biochemistry
  • Biochemistry, medical
  • Endocrinology, Diabetes and Metabolism

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