Heart rate in middle-aged men

The effect of age on heart rate in subjects free of heart disease. Studies by ambulatory electrocardiography and maximal exercise stress test.

“…64,[10][11][12][13][14][15][16][17][18] A common problem in studying the effect of age on the heart is the difficulty in separating the true effects of aging from those due to deconditioning or unrecognized diseases. Deconditioning due to sedentary lifestyle is a common accompaniment of aging, and undetected significant coronary artery disease may be present in more than one-fourth of persons older than 45 years of age.9-22…”

“…18 The intrinsic heart rate after autonomic blockade with atropine and propranolol also decreases with age with a slope similar to that of the maximal exercise heart rate.9 However, the average daily heart rate is not influenced by age,'0 and contradictory or few data are available on the effect of age on resting heart rate, on the increment of heart rate induced by standardized exercise and on the diurnal variation of heart rate." 64, [10][11][12][13][14][15][16][17][18] A common problem in studying the effect of age on the heart is the difficulty in separating the true effects of aging from those due to deconditioning or unrecognized diseases. Deconditioning due to sedentary lifestyle is a common accompaniment of aging, and undetected significant coronary artery disease may be present in more than one-fourth of persons older than 45 years of age.…”

“…Deconditioning due to sedentary lifestyle is a common accompaniment of aging, and undetected significant coronary artery disease may be present in more than one-fourth of persons older than 45 years of age. [9][10][11][12][13][14][15][16][17][18][19][20][21][22] In the studies mentioned above, the effect of age cannot be clearly distinguished from the effects of subclinical coronary artery disease or deconditioning. To further define the effect of age on the heart rate, we performed 24-hour ambulatory electrocardiography and maximal exercise stress testing on 101 subjects free of detectable heart disease verified by extensive noninvasive and invasive testing.…”

Predicting fatigue from heart rate signatures using functional logistic regression

“…A more controlled design will eliminate the issues present in observational studies, as well as ensure sufficient sample sizes in order to account for group to group variation. Age is known to affect maximum HR (Lester et al, 1968), and while age isn't thought to affect average daily HR (Richardson, 1971), Kostis et al (1982) found an interaction between age and HR response to exercise. Sex has also been found to affect one's HR dynamics (Ryan et al, 1994).…”

Effect of Aging on Heart Rate and Rhythm in Subjects Free from Heart Disease: A 7-Year Prospective Study

“…We have reported on heart rates during AECG and during exer cise stress testing and on their relationships, as well as on the presence of premature ventricular complexes (PVC) in a cross-sectional study of subjects free from heart dis ease as ascertained by noninvasive and invasive testing [18][19][20]. Lower maximum heart rates without significant changes in resting heart rate and a higher prevalence of PVC in older individuals were noted [10][11][12][13][14][15][16][17][18][19]. To verify these effects and to exclude secular trends other than aging as their cause, we performed follow-up examina tions 7 years after enrollment.…”