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Exercise, immune function and HIV infection

R J Shephard1

  • 1Faculty of Physical Education & Health, Brock University, St. Catharines, Ontario, Canada.

The Journal of Sports Medicine and Physical Fitness
|October 9, 1998
PubMed
Summary
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Individuals with early to moderately advanced HIV-1 infection can safely participate in moderate exercise, gaining fitness benefits similar to healthy individuals. Intensive exercise should be avoided in advanced stages due to immune function decline.

Area of Science:

  • Immunology
  • Exercise Physiology
  • Infectious Diseases

Background:

  • HIV infection progressively impairs immune function, notably decreasing CD4+ T helper/inducer lymphocytes.
  • Exercise and sport participation have implications for individuals living with HIV/AIDS.
  • Current research provides a limited database on the effects of exercise in HIV-positive individuals.

Purpose of the Study:

  • To review the implications of HIV infection for exercise and sport participation.
  • To assess the safety and benefits of exercise for individuals with varying stages of HIV-1 infection.
  • To identify the need for further research on exercise interventions in HIV management.

Main Methods:

  • Review of published literature on HIV infection, immune function, and exercise.

Related Experiment Videos

  • Analysis of immune responses during moderate physical activity in HIV-positive individuals.
  • Comparison of exercise benefits in HIV-positive individuals versus healthy controls.

    • Main Results:

    • Moderate exercise and sport are safe for early to moderately advanced HIV-1 infection, yielding comparable aerobic and strength gains.
    • Exercise capacity may be compromised in advanced AIDS due to cardiorespiratory and neuromuscular decline.
    • Moderate training programs did not significantly alter CD4+ counts or ratios and may attenuate psychological stress.

    Conclusions:

    • Individuals with early to moderate HIV-1 infection can engage in moderate exercise safely.
    • Very intensive exercise should be avoided in advanced HIV/AIDS to prevent immunosuppression.
    • Further large-scale, long-term studies are needed to compare exercise, psychotherapy, and combined interventions for HIV management.