Ryszard Grucza

Influence of the menstrual cycle and oral contraceptives on thermoregulatory responses to exercise in young women

SummaryThermoregulatory responses to exercise in relation to the phase of the menstrual cycle were studied in ten women taking oral contraceptives (P) and in ten women not taking oral contraceptives (NP). Each subject was tested for maximal aerobic capacity (

Cardiovascular and sympatho-adrenal responses to static handgrip performed with one and two hands

\dot VO_{2max}

Dynamics of sweating in men and women during passive heating.

) and for 50%

Effect of voluntary dehydration on thermoregulatory responses to heat in men and women

\dot VO_{2max}

Cardiovascular response to static handgrip in trained and untrained men

exercise in the follicular (F) and luteal (L) phases of the menstrual cycle. Since the oral contraceptives would have prevented ovulation a quasi-follicular phase (q-F) and a quasi-luteal phase (q-L) of the menstrual cycle were assumed for P subjects. Exercise was performed on a cycle ergometer at an ambient temperature of 24° C and relative air humidity of 50%. Rectal (Tre), mean skin (