by Natalie Gingrich Mackenzie
Arthur BelebeauBLOCK 1: CARDIO
Pretty much any activity that gets your blood pumping is cardiovascular. When your heart rate rises, muscle cells break down sugar and fat for fuel, burning calories. Clearly there are a ton of ways to do this, but exercise physiologists lump cardio into three buckets--long, slow distance (LSD), medium hard (tempo) and high intensity interval training (HIIT). What's what:
LSD No surprise, these sessions are long (45 to 60 minutes) and slow--you're creeping at a pace that you can easily sustain. The whole point is to increase your endurance, so you can build a solid foundation to prep for shorter, tougher sessions, says Michele Olson, Ph.D., a professor of exercise physiology at Auburn University in Montgomery, Alabama.
Tempo In these more challenging 20- to 30-minute workouts, you'll close in on yourRead More »from The Three Building Blocks to a Hot Body