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Walking in the Prevention of Coronary Heart Disease

Walking in the Prevention of Coronary Heart Disease. Prepared by Don Hall, DrPH, CHES A Presentation of LifeLong Health. Physical Activity Level and Risk of Heart Attack. Relative Risk. Nurses Health Study, 72,488 women followed for 8 years

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Walking in the Prevention of Coronary Heart Disease

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  1. Walking in the Prevention of Coronary Heart Disease Prepared by Don Hall, DrPH, CHES A Presentation of LifeLong Health

  2. Physical Activity Level and Risk of Heart Attack Relative Risk • Nurses Health Study, 72,488 women followed for 8 years • The risk of heart attack decreased with increasing levels of physical activity • Heart attack risk dropped over 50% in the most active women (top 20% compared to bottom 20%) NEJM, p.650, Aug. 26, ‘99 Little activity High activity

  3. Relative Risk of Heart Attack by Quintile of Physical Activity and Smoking Status Relative Risk Least activeMost active Physical Activity Level NEJM, Aug. 26, ‘99

  4. Relative Risk of Heart Attack by Quintile of Physical Activity and Body Mass Index Relative Risk Least activeMost active Physical Activity Level NEJM, Aug. 26, ‘99

  5. Relative Risk of Heart Attack by Quintile of Physical Activity and Family History of CHD Relative Risk Least activeMost active Physical Activity Level NEJM, Aug. 26, ‘99

  6. Walking Pace and Relative Risk of a Heart Attack • Walking pace was another important determinant of risk of heart attack • Women who walked at a moderate pace reduced risk by 25% • Women who walked briskly reduced risk by 36% NEJM, Aug. 26, ‘99

  7. Summary • In this study, the reduction in risk of heart attack from brisk walking or vigorous activity were similar when total energy expenditures were similar • Women who walk briskly for 3 or more hours per week can reduce their risk of a heart attack by 30 to 40% • The researchers concluded that, “one-third of coronary events (heart attacks) among middle-aged women in the United States are attributable to physical inactivity” NEJM, Aug. 26, ‘99

  8. Walking is Good Medicine When the weather will permit, all who can possibly do so ought to walk in the open air every day, summer and winter. A walk, even in winter, would be more beneficial to the health than all medicine the doctors may prescribe. E.G. White, Counsels on Health, page 53, 1870

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