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Related Experiment Videos

Cigarette smoking, regular exercise, and peripheral blood flow.

Maria M Anton1, Miriam Y Cortez-Cooper, Allison E DeVan

  • 1Department of Kinesiology and Health Education, University of Texas at Austin, Austin, TX 78712, USA.

Atherosclerosis
|July 28, 2005
PubMed
Summary

Regular physical activity in smokers significantly increases peripheral blood flow and vascular conductance. This suggests exercise may help counteract smoking

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Area of Science:

  • Cardiovascular Physiology
  • Exercise Science
  • Vascular Biology

Background:

  • Chronic smoking impairs peripheral blood flow and increases peripheral arterial disease risk.
  • The impact of physical activity on vascular function in smokers remains unclear.

Purpose of the Study:

  • To investigate whether physical activity status influences peripheral blood flow in chronic smokers.
  • To compare vascular parameters between sedentary and physically active smokers.

Main Methods:

  • Doppler ultrasound assessed common femoral artery blood flow in young, healthy sedentary and physically active smokers.
  • Groups were compared for basal blood flow, vascular conductance, and resistance.

Main Results:

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  • Physically active smokers exhibited 50% higher basal femoral artery blood flow than sedentary smokers.
  • Higher blood flow in active smokers was linked to increased vascular conductance and decreased vascular resistance.
  • No significant differences were found in body fat, blood pressure, cholesterol, cardiac output, or norepinephrine levels.

    • Conclusions:

    • Habitual physical activity in smokers is associated with enhanced peripheral blood flow and vascular conductance.
    • Regular exercise may partially mitigate the negative vascular effects of chronic smoking.