Gender-related changes in body composition, muscle strength and power output after a short-term multidisciplinary weight loss intervention in morbid obesity

A. Sartorio, N. A. Maffiuletti, F. Agosti, C. L. Lafortuna

Research output: Contribution to journalArticle

Abstract

Obese men and women have notably different body composition, which contributes to a different functional motor impairment, but it is unknown whether they respond differently to the same intervention for body weight (BW) reduction and motor capability improvement. The aim of this investigation was to compare changes in body composition, strength production and power output observed in severely obese men and women after a BW reduction intervention, and to test the hypothesis that changes in body composition may be related to changes in motor functionality. Ninety-five obese men and women of the same age (29.3±7.0 SD yr) and body mass index (41.2±4.4 kg/m2) participated in a short-term (3 week) mass reduction program (5 days/week) entailing exercise (aerobic and strength training) and energy-restricted diet. BW and body composition, maximum voluntary total isotonic strength (ST), and maximum leg power output (Ẇ) were evaluated before and after the program. After the intervention, BW decreased significantly in both men and women, but males lost a significantly higher amount of their initial BW than females (5.12±0.91 vs 4.27±1.42%, p

Original languageEnglish
Pages (from-to)494-501
Number of pages8
JournalJournal of Endocrinological Investigation
Volume28
Issue number6
Publication statusPublished - 2005

Keywords

  • Body composition
  • Exercise
  • Hypocaloric diet
  • Isotonic strength
  • Muscular anaerobic power
  • Obesity

ASJC Scopus subject areas

  • Endocrinology

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