Key result
Extreme exercise places large hemodynamic stress on the heart, potentially leading to maladaptive remodeling, arrhythmias, coronary atherosclerosis, and sudden cardiac death.
Why the study?
Recent data suggest an inflection point where exercise beyond recommendations may no longer impart benefit and could result in negative cardiovascular outcomes.
Does extreme endurance exercise increase cardiovascular risk compared to moderate intensity exercise?
Does extreme endurance exercise increase cardiovascular risk compared to moderate intensity exercise?
While moderate exercise is beneficial, extreme endurance exercise may lead to maladaptive cardiac remodeling and increased risk of arrhythmias, coronary atherosclerosis, and sudden cardiac death.
Answers are grounded in this paper and cite their sources.
May warrant caution with extreme endurance exercise; leaves open net risk versus moderate activity and requires prospective confirmation.
Habitual moderate intensity exercise is a vital component of a healthy lifestyle. For most of the population, increasing exercise duration and intensity beyond current recommendations appears to impart additional cardiovascular benefits; however, recent data has raised the possibility of an inflection point after which additional exercise no longer imparts benefit and may even result in negative cardiovascular outcomes. Exercise at the extremes of human endurance places a large hemodynamic stress on the heart and results in occasionally profound cardiac remodeling in order to accommodate the huge increases in cardiac output demanded by such endeavors. These changes have the potential to become maladaptive and heighten the risk of various arrhythmias, influence the rate of coronary atherosclerosis, and alter the risk of sudden cardiac death. Herein, we will discuss the potential negative impact of extreme exercise on cardiovascular risk.
No takes yet. Share an insight, caveat, or question.
Sharalaya et al. (2018) conducted a review in Cardiovascular risk. Extreme exercise was evaluated. Extreme exercise places large hemodynamic stress on the heart, potentially leading to maladaptive remodeling, arrhythmias, coronary atherosclerosis, and sudden cardiac death.
Synapse has enriched 10 related papers. Consider them for comparative context: