HAMODYNAMIK UND ERGOMETRISCHE LEISTUNG UNTER EINFLUSS EINES NIEDRIGDOSIERTEN ORALEN KONTRAZEPTIVUMS

In this pilot study hemodynamic parameters under base-line and performance conditions during a cycle without (N) and with low-dosed oral contraceptives (OC) were of interest. A group of 6 women (age 23,2 ± 2,1 years) underwent 8 bicycle ergometry sessions each in both a normal cycle and in a cycle on OC. Testing was done in 3 phases of each cycle. Data were obtained on the maximum watt performance, the pulse work capacity at a heart rate of 170 beats per minute (PWC ₁₇₀), as well as on blood pressure and heart rate at rest and at various levels of exercise. No significant differences were found between the N and CO cycles during the follicular phase or in mid-cycle. During the luteal phase, however, faster heart rates and higher blood pressure levels were found for N cycles than in the corresponding phase under CO (p < 0.05).