The study of lung functionalism is a matter which, without good reason, has been long forgotten. As for other organs rapidly charged functional study, characters of real importance for the lung, however, it just outlined. And this is how you could say with Roger, the physiology of the lung was in the same state as it was the physiology of the liver before work Claudio Bernard, no one would give importance to what, indeed, has law.

El pulso ha sido uno de los elementos que fué primeramente observado en los viajes a las grandes alturas. Se ha pretendido establecer una relación entre la altura y la frecuencia del pulso mientras este fué estudiado durante el viaje. En la actualidad - en los casos de ascensiones sin esfuerzo o aeroplano - está demostrado que tal hecho no ocurre, sino en determinadas condiciones de rarefacción del aire. Podemos afirmar, como resultado de nuestras observaciones, que esta frecuencia es relativamente moderada y que únicamente cuando se presentan signos de Soroche se rompe el ritmo normal para aparecer una taquicardia más o menos intensa.

In the previous communication we had necessarily refer to the performance of the heart against the effort to determine the frequency characteristics, shape, stability, etc., constituting man's pulse rate of the Andes. Indeed, we have noted the frequency of bradycardic and ortocárdicas reactions which are undoubtedly the best example of the physiological assessment of the Andean heart. So we said that the law of the Andean heart versus moderate or large effort, it is not a straight line as they occur at sea level - equal acceleration effort - but at the expense of the creek ortobradicárdicas reactions slowed to acceleration.