Cardiovascular fitness is the efficiency in which the lungs, heart and vascular system work in coordination to ensure optimal supply of oxygen to the muscles to maintain its activity.
According to study published in Journal of the American Medical Association Network open improved cardio respiratory fitness is associated with decrease in long term mortality and vice versa. Extremely high aerobic fitness was associated with the greatest survival and was associated with benefit in older patients and those with hypertension. Health care professionals should encourage patients to achieve and maintain high levels of fitness.
122 007 consecutive patients undergoing exercise treadmill testing at a tertiary care academic medical center were included in the study.The study was conducted from January 1, 1991 to December 31, 2014 and had a median follow-up of 8.4 years.
Study findings are encouraging in a way that reduction in death due to increase in cardio respiratory fitness has not shown any evidence of a plateau effect or U-shaped association as opposed to previous some studies. Improved cardiovascular fitness is also protective in coronary artery disease, hypertension, diabetes, stroke and cancer. But few studies in past have shown association of habitual vigorous exercise with cardiovascular diseases such as atrial fibrillation, calcification in coronary artery, fibrosis in heart muscles, and dilation of aorta.
Image source: indiatvnews.com