Day 28 and we are going to to do a super tabata of planks. To make our tabata extra strong today, we will make the work portion 40 seconds instead of 20 seconds but keep the rest still 10 seconds. So if you have a tabata timer change the work portion to 40 seconds. So do a 40 second plank, then rest for 10 seconds. Do that for 8 rounds for a total of 6 mins and 40 seconds, just under 7 minutes. If you want to make the workout more challenging do the different plank variations. Plank variations include front of the elbow or top of the push up planks, planks with one arm or one leg up, and planks with the opposite leg and arm up, or side planks. You bikini buff bonus is 50 deep squats straight through without stopping.