Resistance training

Stationary bike trainers provide a good workout for the lower body, but they don't do much for the upper body. That's where the S-Rower comes in, as it's a low-cost partial rowing machine that connects to your bike trainer for a full-body workout.

A new study has found that taking five grams of a creatine supplement daily, which is the upper limit of the recommended daily dose, while lifting weights doesn’t lead to more muscle gains. It's possible the supplement's effects have been overstated.