Occupied machines Sometimes you go to the gym and have a cardio workout in mind, but quickly you discover that all the treadmills, stair climbers or any other machines are taken. So often people ask themselves a question – What now? Do not wait around for a machine to become available, just do an alternative workout that will be as good. Here are our propositions for a good workout. AIR JUMP ROPE Arms down by your sides, elbows bent at 90 degrees. Bounce on your toes and begin jumping up and down while moving your arms in circular motions just like you would actually hold a jump rope. Of course...