Sweat poured off my body as I strained to finish my last 30 second rep of plank jacks.  My muscles were burning from all the previous strength exercises:  walking push-ups, static lunges, arm curls, to name a few.  I had one minute of abs to complete and my twenty minutes of progress and pain would be over.  A two-minute cool-down and a much-needed shower would complete my workout routine…  Continue reading →