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Evidence Summary

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In people who have cancer, exercise therapy improves cardiorespiratory fitness

Scott JM, Zabor EC, Schwitzer E, et al. Efficacy of Exercise Therapy on Cardiorespiratory Fitness in Patients With Cancer: A Systematic Review and Meta-Analysis. J Clin Oncol. 2018;36:2297-2305.

Review question

In people who have cancer that began during adulthood, does exercise therapy improve cardiorespiratory fitness?

Background

Treatments for cancer can reduce a person’s cardiorespiratory fitness, even after the treatment is finished. Poor cardiorespiratory fitness can result in poor health-related quality of life and increase the risk of death over time. It is not known whether exercise therapy can improve cardiorespiratory fitness in people who have had treatment for cancer.

How the review was done

The researchers did a systematic review based on studies available up to February 2018.

They found 48 randomized controlled trials with 3,632 people.

The key features of the studies were:

  • people were mostly women (68%), average age 55 years, who had breast, prostate, lung, blood, colorectal, gastrointestinal, or other cancer;
  • exercise therapy was done before surgery, or during or after primary adjuvant treatment;
  • type of exercise therapy was aerobic (56% of studies), resistance (6%), or aerobic and resistance (38%); and
  • exercise therapy was compared with no exercise.

What the researchers found

Exercise therapy improved cardiorespiratory fitness compared with no exercise.

Conclusion

In people who have cancer that began during adulthood, exercise therapy improves cardiorespiratory fitness.

Exercise therapy vs no exercise in people with cancer

Effects of exercise therapy vs no exercise

Number of trials (and people)

Peak oxygen consumption (a measure of respiratory fitness) was improved by a small amount.

48 trials (3,394 people)

 



Related Topics


Glossary

Gastrointestinal
Related to the stomach and the intestines (bowels).
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.

Related Web Resources

  • Colorectal cancer test recommendations

    Health Link B.C.
    Colorectal testing every 1-2 years is recommended for people between ages 50 and 74. Your doctor may recommend screening before age 50 and more often if you have an increased risk of this type of cancer (eg. family history of colon cancer, polyps or Crohn's disease).
  • Breast cancer Screening video

    Canadian Task Force on Preventive Health Care
    Women ages 50-74 should have a mammogram every 2 to 3 years, if they are not at high risk of breast cancer. Discuss with your doctor whether you should have a mammogram if you are over age 75.
  • Dance therapy for people with cancer

    Evidently Cochrane
    Dance therapy does not appear to have a large benefit on improving physical or psychological symptoms of people with cancer, such as depression, fatigue or body image. However, you should dance if it helps you feel better.
DISCLAIMER These summaries are provided for informational purposes only. They are not a substitute for advice from your own health care professional. The summaries may be reproduced for not-for-profit educational purposes only. Any other uses must be approved by the McMaster Optimal Aging Portal (info@mcmasteroptimalaging.org).

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