After your last pushup and run, lower all the way down to the floor and point your toes. Extend your arms overhead, thumbs pointing up. Extend your spine and lift your chest (this is your ‘Y’), keeping your toes on the floor. Open your arms out to the sides (‘T’), and then reach your arms all the way back towards your feet (‘I’), extending higher through your spine if you can. Lower back to the starting position. That’s one rep. Do 10 reps in a row.