SHRED Positive Air DVD In SHRED Positive Air , Dr. Ian Smith is back with another video in his SHRED video series! Join Dr. Ian Smith and his friend Pastor Charles Jenkins as they join fellow SHREDDERS for all new HIIT workouts. 35 minutes is all you’ll need. You’ll learn the secret to getting a toned core, lose weight and increase muscle tone while incorporating easy-to-follow, no excuses exercises you can do at home, in your hotel room, basement, anywhere you have a small amount of floor space. This is made for all fitness levels. Challenge yourself and burn a super amount of calories while having fun! Remember, SHRED hard!! This is another H.I.I.T. workout that will give you a tremendous calorie burn up to 24 hours after your workout. You only need 30 minutes to get in a workout that will have your fat cells SCREAMING!