Have Risk of Sudden Death While You perform exercises ?

Among apparently healthy people , sudden death is more likely to occur in the presence of abnormal heart rate profiles during exercise and recovery. It is very common to see people doing physical exercises in gyms , particularly in treadmills , bicycles and other equipment for cardiovascular training , including patients suffering from hypertension or ischemic heart disease without having any control of your heart rate. Outlined in the study found that the risk of sudden death from myocardial infarction was increased in those with a resting heart rate over 75 beats per minute, in subjects with an increase in heart rate during exercise less than 89 beats per minute, and in subjects with a decrease in heart rate less than 25 beats per minute after completing the exercise .

It is very common to see people doing physical exercises in gyms , particularly in treadmills , bicycles and other equipment for cardiovascular training , including patients suffering from hypertension or ischemic heart disease without having any control of your heart rate. Many times these people believe that the more strenuous and the greater fatigue and respiratory distress generate them , the better the exercise. Worse, when monitored by coaches without knowledge of the physical conditions of the person / patient , impose training guidelines that do not take into account , even heart rate.
Changes in heart rate during exercise and recovery after it, are mediated by the balance between sympathetic and vagal activity .
Given that alterations in the neural control of cardiac function contribute to the risk of sudden death, Xavier Jouven and collaborators in the Department of Cardiology , Faculty René Descartes University of Paris , Georges Pompidou Hospital , tested the hypothesis that among apparently healthy people , sudden death is more likely to occur in the presence of abnormal heart rate profiles during exercise and recovery.
A total of 5713 asymptomatic working men ( between the ages of 42 and 53 years) , none of whom had clinically detectable cardiovascular disease , underwent a standardized exercise test between 1967 and 1972 . Data were examined resting heart rates , the increase in frequency from rest to maximum exercise level and decreased in frequency from the peak exercise level to level 1 minute after completion of the exercise.
Results : Over a 23-year follow-up , 81 subjects died suddenly . The risk of sudden death from myocardial infarction was increased nearly 4-fold in those with a resting heart rate over 75 beats per minute ( relative risk : 3.92 , CI 1.91 to 8.00 ), 6-fold in subjects with increased heart rate during exercise less than 89 beats per minute ( relative risk : 6.18 , CI 2.37 to 16.11) and 2-fold in subjects with a decrease in heart rate less than 25 beats per minute after completing the exercise ( relative risk 2.20 , CI 1.02 to 4.74 ) .
After adjusting for potential confounders , these three factors remained strongly associated with an increased risk of sudden death, with a modest but significantly increased risk of death from any cause, but not sudden death from myocardial infarction .
As a conclusion of the study : The heart rate profile during exercise and recovery is a predictor of sudden death.
So that it is best to not exercise like crazy ; Get checked before starting an exercise program , particularly if it is intensive and keep track of your heart rate before, during and after the completion of their training . The best thing to do is to wear a heart monitor watch , which can be programmed according to user characteristics and continuously tells not only the heart that you have at all times during your workout , but if it is below or above the limit for age and sex , allowing you to make a more reasonable cardio .