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3mo ago

Replacing Sedentary Time with Activity or Sleep Cuts Risk of Second Heart Attack

A Columbia University study shows that even small lifestyle changes, like light activity or extra sleep, significantly reduce the likelihood of secondary cardiac events for heart attack survivors.

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Overview

  • Replacing 30 minutes of sitting with moderate-to-vigorous activity reduces the risk of a second cardiac event or death by 61%, according to new research.
  • Substituting the same amount of sedentary time with light-intensity activity lowers risk by 50%, while replacing it with sleep reduces risk by 14%.
  • Heart attack survivors who average over 14 hours of sedentary behavior daily more than double their risk of experiencing another cardiac event within a year.
  • The study utilized wrist accelerometers to objectively measure activity levels in 609 acute coronary syndrome patients, offering more accurate data than self-reported methods.
  • Findings suggest updating cardiac rehabilitation guidelines to emphasize reducing sedentary behavior alongside structured exercise, making recovery strategies more accessible.