What's a stack you ask? Please, let me explain. Today we begin each workout with a nice and easy low rep count...maybe a little to easy you're thinking. Well don't speak too soon. After you complete each round you will add on an additional amount of reps to your next round as indicated below in each workout. Your goal is to get as high as possible in each 7 minute workout. Complete 2 sets of each workout for today and you're done. Post your results and let us know how high you got in each workout. 

Stack set 2

Round 1: 2 reps
Add 2 reps to each exercise every time you complete a round.

Burpees

Push up knee tap

Sumo squat

Sit up

Stack set 1

Round 1: 10 reps
Add 10 reps to each exercise every time you complete a round.

Mountain climbers

Star jumps

Bicycle kicks

High knees

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