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Evidence Summary

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Long-term exercise reduces falls, but not hospitalization or death, in older people

de Souto Barreto P, Rolland Y, Vellas B, et al. Association of Long-term Exercise Training With Risk of Falls, Fractures, Hospitalizations, and Mortality in Older Adults: A Systematic Review and Meta-analysis. JAMA Intern Med. 2018 Dec 28. [Epub ahead of print]

Review question

In older people, does exercise training for at least 1 year reduce risk for falls, falls that cause injuries, fractures, hospitalization, or death?

Background

People 65 years of age and older are more likely to experience falls, injuries from falls, broken bones, hospitalization, and even death. It is unclear whether exercise can help reduce the risk for these events.

How the review was done

The researchers did a systematic review based on studies available up to March 2018. They found 46 randomized controlled trials with 22,709 people.

The key features of the RCTs were:

·        average age was 73 years, 66% were women, and most lived in the community;

·        most trials included multiple types of exercise, such as aerobic exercise plus strength training plus balance training;

·        exercise was usually about 3 times per week for 50 minutes at a moderate intensity;

·        exercise was often in a group-based supervised format or a mix of group-based with home-based unsupervised exercises;

·        exercise continued for an average of a year and half; and

·        studies usually compared exercise with other treatments.

What the researchers found

Compared with control groups, exercise:

  • reduces risk for falls by about 12%;
  • reduces risk for falls that cause injuries by about 26%;
  • did not reduce risk for fractures;
  • did not reduce risk for hospitalization; and
  • did not reduce risk for death.

Conclusion

In older people, long-term exercise training reduces risk for falls and falls that cause injuries but not fractures, hospitalization, or death.

Long-term exercise vs control in older people

Outcomes

Number of trials (and people)

Effect of exercise

Falls

20 trials (4420 people)

About 5 fewer people out of 100 would fall.

Falls that cause injuries

9 trials (4481 people)

About 4 fewer people out of 100 would fall.

Fractures

19 trials (8410 people)

Groups did not differ for fractures.

Hospitalization

12 trials (5939 people)

Groups did not differ for hospitalizations.

Death

29 trials (11,441 people)

Groups did not differ for deaths.

 




Glossary

Control group
A group that receives either no treatment or a standard treatment.
Randomized controlled trials
Studies where people are assigned to one of the treatments purely by chance.
Systematic review
A comprehensive evaluation of the available research evidence on a particular topic.

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