What is VO2, Lactate, Pros and Cons of training off Heart Rate, the Benefits of High Intensity Interval Training and Tabata Workouts with special guest, Dr. Matt Silvers, Assistant Professor at Whitworth University in the Department of Health Sciences.  Email Dave Erickson and Roger Thompson at EnduranceHour@gmail.com. Find us on Facebook and Twitter, key word “EnduranceHour†and subscribe via iTunes and/or Stitcher Smart Radio. Call anytime at 720-295-9890 (voice mail).