Blood Type Workout - O - Cardo Strength and Tabata by Kendra Kemerly is a Beginner to Intermediate level. This workout features Kendra who is one of the top instructors in the world. The movements are high-impact and follow the Theory of Blood Type workouts which is based on one's lineage from where the blood type originates. Kendra's form and strength on this workout is well-documented and something each participant will strive for. It's a workout you can do every day.