10th

Tabata Mash Up

Sit Ups
V-ups

A Tabata interval is 20 seconds "work" followed by 10 seconds "rest" for 8 intervals, a total of 4 minutes. For the mash up, we will do sit ups for 20 seconds, rest 10 seconds, then V-ups for 20 seconds, rest 10 seconds, and so on, alternating for 8 intervals of each exercise which will amount to about 8 minutes total.