"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." The 25-7-2 Stairmaster workout is the next 12-3-30 workout. You heard it here first. In the same way that ...

If you’re pushed for time and like to achieve as much as possible in your workout, strengthening as many muscles as you can while also burning fat and boosting your cardio fitness, a kettlebell HIIT ...

Serious about packing on quality muscle size with this killer 15-minute body part workout? Get ready. This is a workout designed for individuals seeking maximal muscular development and leanness by ...

When people talk about muscle growth, you may think of protein-rich foods or supplements and strength training. These are key ingredients needed to build muscle, but you also have to follow the right ...