The effect of resistance training on functional capacity and quality of life in individuals with high and low number of metabolic risk factors

  1. Itamar Levinger, MSc (itamar.levinger{at}research.vu.edu.au)1,
  2. Craig Goodman, PhD1,
  3. David L. Hare, MBBS2,
  4. George Jerums, MD3 and
  5. Steve Selig, PhD1
  1. 1Centre for Ageing, Rehabilitation, Exercise and Sport, School of Human Movement, Recreation and Performance, Victoria University, Melbourne, AUSTRALIA
  2. 2Department of Cardiology and University of Melbourne, Austin Health, Melbourne, AUSTRALIA
  3. 3Department of Endocrinology and University of Melbourne, Austin Health, Melbourne, AUSTRALIA

    Abstract

    Objective: There are limited data on the effects of resistance training (RT) on the capacity to perform activities of daily living (ADL's) and quality of life (QoL) for individuals with high number of metabolic risk factors (HiMF). This study examined the effect of RT on the capacity to perform ADL's and QoL in individuals with HiMF and compared any benefits with individuals with low numbers of metabolic risk factors (LoMF).

    Research Design and Methods: Fifty-five untrained individuals, aged 50.8± 6.5 yr, were randomised to four groups, HiMF training (HiMFT), HiMF control (HiMFC), LoMF training (LoMFT) and LoMF control (LoMFC). At baseline and after 10 weeks of RT, participants underwent anthropometric measurements, and assessments of aerobic power (VO2peak), muscle strength, capacity to perform ADL's and a self-perceived QoL questionnaire. A repeated measures ANOVA was used to examine the effect of training over time among groups.

    Results: Training increased LBM in both HiMFT (p=0.03) and LoMFT (p=0.03). Total fat content and VO2peak improved in the LoMFT only. Muscle strength improved in both training groups (p<0.01). Time to complete ADL's was reduced by 8.8% in the LoMFT (p<0.01) and 9.7% in the HiMF (p<0.01). Only HiMFT reported improvement in QoL.

    Conclusion RT improved muscle strength and the capacity to perform ADL's in individuals with HiMF and LoMF. RT improved QoL for the HiMF group, and this was independent of changes to body fat content or aerobic power. Longer training regimes may be needed in order to improve QoL in individuals with LoMF.

    Footnotes

      • Received April 30, 2007.
      • Accepted May 31, 2007.

    This Article

    1. Published online before print June 11, 2007, doi: 10.2337/dc07-0841
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