Naomi Nazario

Five exercises, 55 reps of each

You'll build muscle and supercharge your metabolism

The goal is to finish as fast as you can

Challenge your upper-body next time you hit the gym

It can make or break your attitude, so choose wisely

These core exercises will give you far better results than crunches

And it won't take more than 20 minutes to complete

Our fitness editor shows you how to maximize your upper-body gains and strengthen your core all at once

Get back to the basics with all-time classic moves that will bulk up your arms and back

Combine them into a circuit or add them separately to your upper-body workout to get strong

Dumbbell and kettlebell carries are two of the best exercises to improve your strength

Our fitness editor shows you everything from dumbbell presses to inverted rows