Quit Playing Games with My Heart
Have you seen this chart, or have you heard about the topic it describes? (Scroll to the very bottom of the post for TL;DR if you like!) From "On Combat", as rendered by Amazon.com. Not for commercial use. In brief, as I have heard it taught and as this chart explains, the higher your heart rate, the worse your physical performance. This idea has implications for anyone in a physical confrontation, where an increased heart rate seems to mean an inability to perform self defense actions. When I first encountered this concept, it did not make sense to me. In my teens I was a high school cross country and track runner, and I frequently elevated my heart rate over 200 bpm. I did not encounter these symptoms. In my twenties and thirties I played men's league ice hockey and managed to perform complex motor skills such as skating, puck handling, and shooting, all while my heart was racing. Now, encountering this chart and its ideas as a martial artist, I'm learning that I s...