The best part? You can apply it to any exercise.
"I love being big and strong. I mean really, who doesn't? So when it comes to working out, I always like to do mass gain workouts," says trainer Bobby Maximus, author of Maximus Body, a book dedicated to helping you become the fittest guy in your gym.
One of Maximus' favorite mass gain workouts of all time is one where you do four sets of 15 reps with 90 seconds of rest between each set.
The amount of weight used will vary from person to person since Maximus prescribes lifting 60 percent of your one-rep max.
Calculating this number isn't hard if you do know your one-rep max, but if you don't, Maximus recommends lifting 135 pounds if you're a beginner, 185 pounds if you're intermediate, and 225 pounds if you're advanced.
The great thing about this workout is that you can apply it to any exercise: your bench presses, back squats, front squats, the works.
It's a great way to keep track of your gains, too, since it truly is a numbers game.
Incorporate Maximus' mass gains workout to build muscle, boost your metabolism, improve your everyday mobility, reduce your overall risk of injury, and ultimately live longer.