EXERCISE STRESS TESTING, CONSIDERING AGE, GENDER AND PHYSICAL ACTIVITIES
Introduction: Exercise stress testing is a widely used non-invasive method not only for coronary artery disease (CAD) diagnosis, treatment, monitoring and forecasting, but also for exercise capacity assessment.
Methods: Prospective study. Were used questionnaire and stress testing data. The study included patients with a diagnosis of CAD and CAD risk patients, which is indicated for the stress testing.
Data were collected and statistically processed by Microsoft Excel 2003 and SPSS 20.0.
Results: Men reached load Vats (W) = 125 (IQR = 50) was higher than women - 75W (IQR = 25) (p <0.001). MET for men is 6.5 (IQR = 2.3) for women - 4.1 (IQR = 2.7) (p = 0.003). There is a strong and statistically significant negative correlation W r = 0.59 (p <0.001), MET r = 0.49 (p <0.001) between age and exercise capacity. Patients <60 years, recovery heart rate was 49.5 bpm (IQR = 20) ,> 60 y.r. - 36 (IQR=18) (p = 0.003). There is a strong correlation between the W, the MET and the maximal heart rate, chronotropic index and Robinson index (p <0,001). For the patients with regular physical activity MET is 7.1 (IQR = 2.25), with little - MET-5.8 (IQR = 2.75), with no activities - 4.8 MET (IQR = 2.3), (p = 0.003). There was not detected any difference in exercise capacity of patients by obesity (p = 0.46) and patients with CAD or CAD risk (p = 0.135).
Conclusion: Exercise capacity of men is higher than of women. Younger patients tolerated load capacity is higher. Exercise capacity does’t affect CAD diagnosis or CAD risk group.
However, the exercise capacity is higher for the patients with regular physical activity, in comparison with intermittent activity, and the lower results are for patients without physical activity.