Display Settings:

Format

Send to:

Choose Destination
Food Nutr Res. 2008;52. doi: 10.3402/fnr.v52i0.1920. Epub 2008 Dec 30.

Physical activity, muscle function, falls and fractures.

Author information

  • 1Department of Orthopaedics and Clinical and Molecular Osteoporosis Research Unit, Department of Clinical Sciences, Malmö University Hospital, Lund University, Sweden.

Abstract

STUDY DESIGN:

A thematic review.

OBJECTIVES:

To evaluate if physical activity enhances muscle strength, improves balance, and reduces the fall frequency and the fracture incidence.

BACKGROUND:

One of the major medical problems of today is the increasing incidence of fragility fractures. Muscle strength and fall is one of the major determinants of a fracture. If physical activity could increase muscle strength, improve balance and reduce the fall frequency, then training could be recommended as prevention for fractures.

METHODS:

The review used Medline (Pub Med) and the search words exercise, physical activity, muscle strength, balance, falls, fractures. Randomized controlled trials (RCT) were predominantly included, although this not is a systematic review.

RESULTS:

The evidence that physical activity modifies the risk factors for fall is compelling, although RCT with fractures as end point are lacking. Physical activity is associated with improved muscle strength, co-ordination and balance. Physical training increases muscle strength also in octogenarians by up to 200%, i.e. a much more pronounced effect than the corresponding increase in muscle volume or bone mass. There is also evidence that physical activity decreases the actual number of falls. Observational cohort and case-control studies imply that physical activity is associated with reduced hip fracture risk. If exercise reduces the number of vertebral fractures and other fragility fractures are less evaluated.

CONCLUSIONS:

Physical activity in older ages can be recommended to improve muscle strength and balance, to reduce the risk to fall and fractures, although the highest level of evidence - RCT with fracture as endpoint - is lacking.

KEYWORDS:

exercise; fall; fractures; muscle mass; muscle strength; physical activity

PMID:
19158939
[PubMed]
PMCID:
PMC2615636
Free PMC Article

Images from this publication.See all images (3)Free text

Fig. 1.  
Fig. 2.  
Fig. 3.  
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Icon for PubMed Central
    Loading ...
    Write to the Help Desk