A Jungle Gym XT suspension trainer is a smart investment and worth packing for any road trip. Hook one up on the door of your hotel room to do the tuck-up (shown above) along with a variety of hardcore exercises.
Perform the moves as a circuit, completing one set of each in sequence. Do as many reps as you can in 60 seconds (that's one set), then rest 30 seconds. Repeat for up to three circuits. If exercises 2, 4, and 5 are too tough for you to do with a suspension trainer, just start from a push-up position with your feet on the ground. Otherwise, every move begins from the push- up position with your feet in the cradles.
Attach a suspension apparatus to a door and lower the foot cradles to knee height. Get into push-up position facing away from the door and secure your feet in the cradles. Keeping your back flat, twist your hips and bring your knees toward your right elbow. Repeat on the left.
2) Cross Cutter
Draw one knee at a time up to the opposite elbow. It's almost the same move as the tuck-up, but with alternating legs.
Tuck your knees as described above, and twist your hips 90 degrees so they face one side. Then twist the other way.
4) Tick Tock Swing
Bend your right knee so it's directly under your hip and then raise it 90 degrees to the side. Continue lowering and raising your leg for 60 seconds, then repeat on the other leg for 60.
5) Round About
Bend your right knee so it's under your hip and make big circles with it. Work counterclockwise for 60 seconds and then reverse for 60. Repeat with the left knee.