Changes of spiroergometric parameters in males under 30 years of age with a hypertensive reaction of arterial pressure to graduated exercise

UNLABELLED: AIM. To study changes in blood pressure (BP) and spiroergometric parameters in 18-30-year-old males with normal BP at rest having different reactions of BP to graduated exercise. MATERIAL AND METHODS: Forty two male examinees performed treadmill-test according to R. Bruce protocol with measurements of BP, ECG parameters and gas composition of exhaled air. RESULTS: The treadmill test has shown that 20 (47.6%) males had a normotensive reaction of BP to exercise, 22 (52.4%)--a hypertensive reaction. The latter had higher systolic and/or diastolic BP levels than those normal for performance of treadmill test. Significantly higher were also parameters of pulmonary ventilation, oxygen pulse in combination with large consumption of O2 and expiration of CO2. CONCLUSION: The presence of significant differences by spiroergometric indices in males with normotensive and hypertensive reactions of BP to exercise but normal BP at rest reflects metabolic shifts at early stages of hypertension in the latter.