CEDAR RAPIDS -- She calls it her "tuck jump," the happy dance that Jordan Smith performs after each Solon point. It's a knees-to-the-chin display; the bigger the point, the more frequent the jump.

Ah, the tuck jump – a finisher exercise loved and hated in equal measure. Brilliant for improving your cardio fitness, shooting your heart rate up and working your lower body and core, the benefits of ...