Index to Chiropractic Literature
Index to Chiropractic Literature
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Saturday, March 28, 2026
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ID 28809
  Title Association between isokinetic lower extremity muscle strength and bone mineral density in elderly women with and without osteoporosis: A case-control study
URL https://doi.org/10.1016/j.jcm.2025.09.023
Journal J Chiropr Med. 2025 ;24(1-4):251-259
Author(s)
Subject(s)
Peer Review Yes
Publication Type Article
Abstract/Notes

Objective: The purpose of this study was to explore the relationship between isokinetic hip and knee muscle strength and bone mineral density (BMD) in elderly women with osteoporosis (OP).

Methods: The study included 66 elderly women: 33 with OP (case group A) and 33 healthy controls (control group B). BMD at the femoral head was assessed using Dual Energy X-ray Absorptiometry (DEXA). Isokinetic muscle strength of the hip (flexors, extensors, abductors, adductors) and knee (flexors, extensors) was measured using the Biodex System 3 Isokinetic Dynamometer at 60°/sec in concentric mode, with 5 repetitions.

Results: The analysis revealed significantly lower strength in all hip muscles in women with OP compared to controls (p < .05). Meanwhile, no significant differences were observed in knee muscle strength between the 2 groups. The findings suggest that reductions in BMD are more closely associated with decreased hip muscle strength than with knee muscle strength.

Conclusion: Diminished isokinetic strength of hip muscles is more strongly linked to BMD reduction in elderly women with OP. Low BMD may serve as a risk factor for lower extremity muscle weakness, emphasizing the need to focus on hip muscle strength in this population.

Author Keywords: Osteoporosis; Bone density; Muscle strength; Hip; Knee

This abstract is reproduced with the permission of the publisher; full text is available by subscription. Online access only.

 
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