On pulsus paradoxus.
An abnormal amount of pulsus paradoxus may be produced in normal volunteers, for teaching purposes, by having them inspire and expire against resistance.
D000403:Airway Resistance; D001794:Blood Pressure; D001795:Blood Pressure Determination; D004504:Education, Medical, Undergraduate; D006801:Humans; D011674:Pulse; D012119:Respiration; D013599:Systole