kickboxing!
Today I replaced the battery in my HRM polar watch, and for the first time in over a year I wore my HRM to workout. I started kickboxing about 4 weeks ago, and I love it!! Even better... I burned 766 kcal in 43 minutes!!! This 43 minutes included 5 minute warm-up (jumping jacks, high knees, stretching), 5 minute…
