Three 15-Minute Muscle Building Workouts

A growing fitness sensation, CrossFit—the system that takes functional training to the extreme—isn't for the weak. Follow along as an M&F staffer plunges into the fray                          

If you’re looking for a quick muscle building workout, we have you covered. With your busy lifestyle in mind, Muscle & Fitness presents 3 fast workouts for when you are big on building muscle but short on time.                          

Exercise equipment might fall under three broad categories                          

Sandbells - neoprene bags designed to be filled with sand or steel shot - are making their way into top strength and conditioning programs                          

Science behind eccentric training explained                          

Get in shape for the upcoming Summer                          

Don't underestimate the power of your Mind to grow your muscles. This five-step visualization process will show you how.                          

Slow down your pace to speed up your muscle gains                          

Try any or all of these Caveman Training programs to build muscle, boost your athleticism and burn bodyfat.                          

Forget the treadmill. Our bodybuilder-driven cardio program uses power-packed exercises and familiar equipment to help you burn more bodyfat faster                          

Choose one weight and go for the burn with these strength-building, fat-scorching routines                          

Use this two-day split to gain 10 pounds of quality muscle over the holiday season                          

Think the power clean is just for athletes? Think again. Build this exercise into your routine to start building pounds of new muscle and the strength to go with it                          

You don't need tons of equipment to get ripped at home. Use these four intensity boosters to milk every workout for all it's worth                          

Everyone wants to be stronger. Keep these four training ideas in mind and you'll be pushing plenty more iron                          

If getting mass and strength are your goals, then try observing these 7 commandments                          

Take your body to new heights by implementing these gym-proven commandments from the father of bodybuilding                          

Looking for a big-weight workout that also burns bodyfat? Try this full-body blitz from the CrossFit community                          

Vikings head strength and conditioning coach Tom Kanavy provides us a deeper look into what keeps his players strong, powerful and healthy                          

Summon (or resurrect) your inner athlete with these five tips from one of the nation's premier sports-training specialists                          

Time to finish strong. The final month of the Rock Hard Challenge features workouts that are more intense and cardio sessions that are tougher (and more frequent)                          

Packing on muscle fast is the aim of every player at the Combine. Using several full-body moves and high-intensity techniques worked for Limas Sweed                          

Millions of dollars are on the line — not to mention childhood dreams — as the nation's top college football players prepare for the annual NFL Scouting Combine. Ensuring success means training on the cutting edge                          

These five programs, designed for guys who train alone (or have lousy spotters), are loaded with intensity techniques to maximize muscle growth                          

Build brute strength (minus the Atlas stones and semitrucks) with these nine gym-friendly strongman lifts courtesy of American strongman Mark Philippi                          

New exercises and a variety of rep ranges await you in Month 2. Just starting up? Get the first month here!                          

The last thing you need this summer is an injury keeping you inside (or worse, in a cast). Here are 10 training pitfalls you need to avoid when hitting the iron                          

If you're looking for a more challenging spin on the push-pull scheme, try this blast from the training log of the M&F Fitness Director                          

Corralling 300-pound monsters at the line of scrimmage takes an insane amount of strength and endurance. Here's how Jake Long built more of both into his bench                          

Stretching is a vital part of any fitness program and can make your break your progress in the long run                          

If you're going to cheat, you need to do it right. Use this checklist to figure out when a little body english is beneficial in the gym                          

It doesn't take fancy cardio equipment to burn bodyfat                          

Rock Hard Challenge - Month 1
Need a refresher on the basics? We've got all of your exercise descriptions for this month's program                          

Five powerful principles—one power-building program                          

To get wicked strong, you need to have a variety of lifts in your repertoire—so long as you start with these four                          

Muscle & Fitness presents the complete guide to teen training. Workouts, nutrition, supplements—your road to a stronger, more athletic build starts here                          

Our six-part series helps you build freaky power fast                          

Our six-part series helps you build freaky power fast                          

Our six-part series helps you build freaky power fast.                          

Build slabs of dense, defined mass by mixing normal, fast and slow reps.                          

Our six-part series helps you build freaky power fast                          

Our six-part series helps you build freaky power fast                          

Everyday in a CrossFit gym is a test of your personal mettle.                          

Serious about getting lean sooner rather than later? This supercharged program combines lifting and cardio to melt away pounds of bodyfat in just four weeks.                          

Back before there was such a thing as a bench press, men proved their mettle lifting stones, breaking chains and holding back horses                          

Moving around loads of iron takes every ounce of strength you can muster. Use these five tips to help you lift more today                          

No need to thumb through volumes of fat-burning research to get the physique you want. Inject these six tips into your current routine to get lean in a hurry                          

Trouble building muscle? Use these five tips to get growing                          

Train like the truck-pulling, barrel-chested strength athletes . . . and get conditioned and ripped while you're at it                          

Maybe you love cardio machines — or maybe you can think of no worse way to spend a half-hour than by sweating profusely while not actually going anywhere. Either way, if you're gonna do it, you might as well make the most of it.                          

What happens when ... You have sex before working out? And other common training and nutrition questions