Too busy to shower after your workout? Why not take a bath while you're on the treadmill? Okay, okay ... I jest. But the Hydro Physio does bear a striking resemblance to a treadmill at the bottom of a bathtub.

Though it may look odd, the concept is a good one. Water creates a natural resistance, which can improve the quality of your workout. In addition, when you work out in water, your buoyancy makes the movement less stressful on joints.

The Hydro Physio is currently used primarily for rehabilitation and athletes. But if you want to get the benefit of a water workout, consider water aerobics. You can also just ramp up your traditional treadmill workout.

[via Ruby Room]