Effect of low-intensity back exercise on quality of life and back extensor strength in patients with osteoporosis: A randomized controlled trial

M. Hongo, E. Itoi, M. Sinaki, N. Miyakoshi, Y. Shimada, S. Maekawa, K. Okada, Y. Mizutani

Research output: Contribution to journalArticlepeer-review

106 Citations (Scopus)

Abstract

Summary: Randomized controlled study in 80 postmenopausal women with osteoporosis was conducted to investigate the effect of a home-based, simple, low-intensity exercise. Low-intensity back-strengthening exercise was effective in improving the quality of life and back extensor strength. Introduction and hypothesis: Back-strengthening exercise is effective in increasing back extensor strength and decreasing risk of vertebral fractures. We hypothesized that a home-based, simple, low-intensity exercise could enhance back extensor strength and improve the quality of life and/or spinal range of motion in postmenopausal women in a short-term follow-up. Methods: Eighty postmenopausal women with osteoporosis were randomly assigned to a control group (n=38) or an exercise group (n=42). Subjects were instructed to lift their upper trunk from a prone position antigravity and maintain the neutral position. Isometric back extensor strength, spinal range of motion, and scores for quality of life were evaluated at baseline and 4 months. Results: Back extensor strength significantly increased both in the exercise group (26%) and in the control group (11%). Scores for quality of life increased in the exercise group (7%), whereas it remained unchanged in the control group (0%). There was a significant difference in quality of life score between the groups (p=0.012). Conclusions: Low-intensity back-strengthening exercise was effective in improving the quality of life and back extensor strength in patients with osteoporosis.

Original languageEnglish
Pages (from-to)1389-1395
Number of pages7
JournalOsteoporosis International
Volume18
Issue number10
DOIs
Publication statusPublished - 2007 Oct

Keywords

  • Back extensor
  • Exercise
  • Osteoporosis
  • Postmenopausal
  • Quality of life
  • Strength

ASJC Scopus subject areas

  • Endocrinology, Diabetes and Metabolism

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