Comparison of cardio-respiratory physiological variables during exercise in medical students
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Objective. To evaluate the effect of a 3-week training program on cardiopulmonary variables in medicine students from Universidad de Boyaca. Methods. The design of the study was a randomized controlled experiment. One hundred sedentary medicine students from secondyear were randomized using a numerical table. Experimental group students (n= 44) did exercise (jogging) for half an hour daily during three weeks. Control group individuals (n= 56) kept on with their usual sedentary habits during the three weeks of the program. After this period, all the students taking part in this experiment performed the Course-Navette exercise test. Variables such as heart rate, respiratory rate, diastolic and systolic blood pressure, SpO2 and vital capacity were recorded both at rest and immediately after having done exercise. Maximum oxygen consumption and speed were also recorded during the test. Comparison of variables pre and post- exercise was made. Results. Statistically significant differences were found in variables such as diastolic blood pressure (p<0,045), heart rate (p<0,05), and maximum oxygen consumption (p<0,05) between groups 1 and 2, after doing exercise, being higher values for the non-exercising group. Conclusions: Jogging on a daily basis for three weeks attenuates changes in heart rate, diastolic blood pressure and oxygen consumption in a young healthy sedentary population.
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