The valsalva maneuver involves expiring against a closed glottis and, when combined with contracting muscles of the abdomen and ribcage, creates rigidity in the entire torso.
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Muscle glycogen is the primary fuel used during endurance exercise. The heart, arteries, and veins are part of the circulatory system. ... The Valsalva Maneuver involves expiring against a closed glottis and when combined with contracting muscles of the abdomen and ribcage creates rigidity in the entire torso.
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