When ski jumpers were programmed in the workout at my gym, I had no idea what the heck they were. After my coach demonstrated them, I couldn't wait to hop on a bench and give them a try. Also called ...

When you think of working out in the park, you probably picture a nice jog, some light stretching, or maybe a few half-hearted jumping jacks while pretending to enjoy the outdoors. But what if we told ...