Stop assuming that your age 50-plus workouts are only meant to maintain or stave off the sands of time. Yes, you do need to pay extra attention to your fitness level after you turn 50; the principle of "use it or lose it" applies here. But you can also keep making gains, too.

The new Max Muscle at 50 program is designed to help you train smart, even if you've hit your sixth decade on Earth. Longtime trainer and coach Bryan Krahn, C.S.C.S. designed the workouts specifically for guys of a certain age—and if it's not enough to know that he's got decades of experience working with all types of guys, he also used the same principles that informed the program in his own workouts.