February 23, 2014
Much dispute exists regarding breathing patterns during exercise. It is held by some that inhaling on the descent and exhaling on the ascent is a respectable way to lower the peak blood pressure during the repetition and thus reduce the possibility of cerebrovascular accidents occurring during exercise. Such counsel exposes a misunderstanding of the mechanisms involved, overestimates the prospect of an exercise-related cerebrovascular injury (an astoundingly scarce event), and undervalues the probability of an orthopaedic injury, a much more common event. The Valsalva manoeuvre is the accurate term for holding the breath against a shut glottis while pressure is...