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Related Experiment Videos

Exercise and prostate cancer.

Dorothea C Torti1, Gordon O Matheson

  • 1Program in Human Biology, School of Humanities and Sciences, Stanford University, Stanford, California 94305-6175, USA.

Sports Medicine (Auckland, N.Z.)
|May 26, 2004
PubMed
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Regular physical exercise may significantly lower prostate cancer risk. This review of 27 studies suggests a probable link, with active men experiencing a 10-30% risk reduction.

Area of Science:

  • Oncology
  • Preventive Medicine
  • Exercise Science

Background:

  • Prostate cancer is a major cause of male morbidity and mortality.
  • Effective risk-reduction strategies are crucial alongside improved treatments.
  • Understanding lifestyle factors like exercise is key to prevention.

Purpose of the Study:

  • To systematically review and synthesize existing literature on the association between physical exercise and prostate cancer risk.
  • To evaluate the consistency and strength of evidence linking exercise to reduced prostate cancer incidence.
  • To identify potential biological mechanisms and future research directions.

Main Methods:

  • Comprehensive literature search of cohort and case-control studies published between 1976 and 2002.

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  • Inclusion of 27 studies (13 cohort, 11 case-control) examining exercise and prostate cancer risk.
  • Analysis of reported associations between physical activity levels and prostate cancer incidence.

    • Main Results:

    • 16 out of 27 reviewed studies indicated a reduced prostate cancer risk in the most active men.
    • Nine of these studies found a statistically significant reduction in risk.
    • Estimated average risk reduction ranged from 10% to 30% for active individuals.

    Conclusions:

    • A probable association exists between increased physical exercise and decreased prostate cancer risk.
    • Potential mechanisms include hormone modulation, obesity prevention, immune enhancement, and reduced oxidative stress.
    • Further well-controlled epidemiological studies and intervention trials are needed to confirm these findings and explore exercise benefits during prostate cancer treatment.