4 Hour Body Kettlebell Swing Results

In the 4 hour body i profiled tracy r a mother of two who lost more than 100 pounds. Tim ferriss noted in his book the 4 hour body that he ...

4 Hour Body Kettlebell Swing

First a kettlebell swing takes about 1 second to complete one half a full swing or 14 revolution this equates to 15 rpm. I measured from th...