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It's one of the toughest muscle groups to build. We ask 10 experts for their single best tip for building quads. Check out their answers.

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Tip: Do the Fat Man Pull-Up

Don't worry, you don't have to be a fat man, or even a man, to benefit from this exercise. Here are two ways to ramp it up.

10 Best Unilateral Exercises

How to get stronger and balance out your monotonous diet of squats and deadlifts with single-leg movements.

Inside the Muscles: Best Chest and Triceps Exercises

Twenty different chest and triceps are put to the EMG test. Here’s which ones came on on top.

Tip: Big-Butt Women Live Longer

Science suggests that big-bootied women will outlive us all. Check this out.

5 Form Mistakes You Don't Know You're Making

Pulldowns, overhead presses, bench presses, pull-ups, rows. Your form sucks on all of them. Really. Here's where you're messing up.

Inside the Muscles: Best Back and Biceps Exercises

After testing 45 different back and biceps exercises with EMG, here are the ones that came out on top.

The Best Strength Training Method of All Time

Cluster training is unbeatable for strength gains. But which type should you use? Here's what you need to know.

17 Nutrition Tips That Change Your Life

Useable, practical, little-known hacks you can start doing right away to change the way you look, live, and even love.

No Weights, Big Wheels

Drop your regular leg-day workout and try this for 8 weeks. If you can take the pain, your quads, hams, and glutes will explode. In a good way.

The Athletic Aesthetic Program

Lift like a beast, move like an athlete, look like a Greek god. Here's your plan.

The Ultimate Minimalist Training Plan

Don't have time to train 6 days a week for over an hour? Don't worry, you don't have to. Get in, get out, make gains. Here's how.

The Gironda System

Vince Gironda was a legendary bodybuilding coach, and you can still learn a lot from him today. Check this out.

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Tip: Ball False-Grip Drill

Master the false grip to master the muscle-up and other moves. This is also a great way to strengthen your forearms.

The Complete Guide to Bulking and Cutting

Here's how to adjust your nutrition to match your training goal. It covers mass phases, fat loss phases, and maintenance phases.

Russian Strength-Skill: The Workouts

How to get big, strong, and lean using training methods inspired by manual labor and the Russian concept of strength-skill.

Hard Body Training for Women

Lean. Hard. Strong. These workouts combine explosive training, metcon, and a unique concept where you train the same muscles two days in a row.

5 Ways to Boost Testosterone

Optimize your T levels with these training and diet tips.

Tip: Turn Off the Hip Flexors to Build Abs

If you can easily knock out dozens of reps of an ab exercise, it's probably because your abs aren't doing much work. Fix that. Here's how.

W-i-d-e-r, Real-Man Shoulders

A look back at bodybuilding history plus a great workout for your delts. Check it out.

The 6-Week Sprinting Solution

An interval training program that will radically alter your conditioning, increase endurance and power, and help you drop body fat. Get it here.

Inside the Muscles: Best Leg, Glute, and Calf Exercises

After hooking himself up to a bunch of electrodes, the author discovers the best exercises for building monster legs.

American Sniper Workout

For his title role in American Sniper, Bradley Cooper gained 37 pounds of lean mass. Here's the exact workout and supplement plan he used to do it.

5 Things You Can Train Everyday

Think you've gotta wait a few days before training some muscles again? Nope. Make gains faster. Here's what thrives with frequency.

Keep Estrogen Under Control

If your estrogen levels are out of whack, it can ruin your body comp, your health, maybe even your life. Here's what you need to know.