When taking fitness tests, the toughest repetitions will usually be the last 20-30 seconds of maximum effort exercise. This is especially true if you're taking a two-minute test. If you are trying to ...

a) Assume the high plank position with your arms straight, bring one knee up to the level of your elbows. Higher... b) Draw your leg back down, then do a full push-up. And now the other knee ...