Related Experiment Videos
Bone mineral density, soft tissue body composition, strength, and functioning after hip fracture
Lois E Wehren1, William G Hawkes, J Richard Hebel
1Division of Gerontology, Department of Epidemiology and Preventive Medicine, School of Medicine, University of Maryland, Baltimore, MD, USA. lois_wehren@msn.com
Summary
Hip fracture in elderly women leads to bone and muscle loss, largely independent of functional decline. Recovery interventions must address bone, muscle, strength, and function simultaneously.
Area of Science:
- Gerontology
- Orthopedics
- Rehabilitation Medicine
Background:
- Elderly women experience significant bone, muscle, and functional decrements after hip fracture.
- The interrelation of these post-hip fracture consequences remains poorly understood.
- Limited data exists on sequential events and predictive markers for functional recovery post-hip fracture.
Purpose of the Study:
- To evaluate associations among physiologic and functional factors during hip fracture recovery in elderly women.
- To determine if a consistent sequence of recovery events occurs.
- To identify potential markers for functional outcomes after hip fracture.
Main Methods:
- A 1-year prospective cohort study of 205 community-dwelling women (≥65 years) with hip fracture.
- Bone mineral density, lean mass, and fat mass measured via dual-energy X-ray absorptiometry at multiple time points.
- Functional limitations self-reported; grip strength measured concurrently with physiologic assessments.
Main Results:
- Observed losses in femoral neck bone mineral density and lean body mass, with fat mass gains.
- Grip strength initially improved but declined to near hospitalization levels by 1 year.
- Functional outcomes showed minimal correlation with bone/body composition, moderate with strength.
Conclusions:
- Physiologic and functional declines post-hip fracture in elderly women are largely independent.
- Effective recovery interventions require simultaneous targeting of bone, muscle, strength, and function.