Heart Rate and Blood Pressure Responses to Exercise Testing in Relation to Age in Healthy Men
Iraqi Postgraduate Medical Journal,
2009, Volume 8, Issue 1, Pages 14-20
There are many circulatory changes that occur during exercise including the stimulatory effects on the circulation by the mass sympathetic discharge, the increased arterial pressure and cardiac output.
To investigate the effect of aging process on the heart rate and blood pressure responses during exercise in normal Iraqi male subjects.
The subjects involved in the study were normal healthy people, their total number was 80 persons all of them were males. They were grouped into three age groups; 20 ≤ 29 years, 30 ≤ 39 years and 40 ≤ 50 years. Each subject performed the exercise on motor driven treadmill device. Testing was conducted at The Medical City Teaching Hospital-Treadmill and Echo unit. Blood pressure was measured indirectly by auscultation. The heart rate was determined by ECG.
There was a significant differences in heart rate after the exercise between the three age groups, a significant differences in systolic blood pressure after the exercise between group2 and group3 was also noted, a non significant decrease in diastolic blood pressure among the three age groups and there was a significant increase in mean blood pressure between group2 and group3.
There was a negative linear correlation between heart rate after the exercise and increasing age, while a positive linear correlation between systolic blood pressure and increasing age was found and there was a positive linear correlation between age and the mean blood pressure after the exercise.
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