I was using my new toy today (Polar HRM) during my normal run and noticed as expected that the faster I ran, the higher my HR. However, if I stood still and moved my arms back and forth, around in circles, and up and down, no matter how fast, my HR would barely rise. This was even true when I held my breath and did it. So, there seems to be a connection between the legs and the heart. (Please excuse my apparent ignorance
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In a diving context, should we as divers rely more on arm propulsion than leg for depth as well as dynamics? Has anyone researched this?
