[Behavior of cardiorespiratory parameters in ischemia induced in the lower limbs. II) Prolonged bilateral ischemia]

On the aim to evaluate the influence of ischemia in the modifications of some cardiorespiratory parameters during and after an isometric contraction of he quadriceps muscle subjected to a constant load, the authors have been studied the behaviour of VE, VO2, HR and intensity of pain on subject which has had ischemia on both lower limbs. The results have been used for a statistic survey. During the test any VO2 meaningful variations have not been observed, while a VE and HR linear increase has been noticed. Furthermore pain has not appeared. Absence of pain, HR decrease and fast VE and VO2 increase, has been observed after the test. They conclude that a large area of ischemia for a sufficiently long time produce a small variations in some of the cardiorespiratory parameters studied. It is so prove that muscular work and not the ischemia is the principal component in the production of metabolites that cause the pain and also the cardiorespiratory modifications.