Question

Respiration in muscles during heavy exercise.​

Answer 1

Answer:

During heavy exercise, expiratory flow limitation and prolonged expiratory time result in higher average positive intrathoracic pressures that reduce ventricular transmural pressure and act like a Valsalva manoeuver, decreasing the rate of ventricular filling during diastole and reducing stroke volume, venous return ...

Answer 2

The respiratory muscles encompass a variety of functions and roles, their action during exercise facilitates arterial blood-gas and pH regulation. Exercise hyperpnea is the first line of defense to meet increased metabolic demand.

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