I tested a 30-minute Grow with Jo workout wearing a Polar chest-strap heart rate monitor. Then I compared the numbers to a HupSix workout. Here's what happened. Is Grow with...
I tested Leslie Sansone's Walk at Home workout wearing a Polar chest-strap heart rate monitor. Then I compared the numbers to a HupSix workout. Here's what happened. The Numbers...
Insanity Max 30 Results: Real Heart Rate Data Insanity Max 30 results depend on how much time you actually spend at a high heart rate. I tested a full 30-minute...