This 67 y/o guy with a damaged heart and an implanted cardiac defibrillator had to slow way down after 4 rotations when my Heart rate climbed to 140 (above which my defibrillator is scheduled to kick my heart back into a "normal rhythm"
Later today I'll see how it affected my arthritic knee, my cracked (but healed)) vertebrae and collapsed and partially collapsed discs.
Excellent 10 minute cardio video. Worked up a good sweat in a short amount of time. I used to think I had to have an hour to work out. So sometimes I didn't work out. I've been changing my mindset so that even 10 minutes can burn calories and be a great workout.
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