Don't Ignore These Five Often Neglected Muscles

Here's how to train them for results that will set you apart.

It’s often the little things that separate the best from the rest, and if you’re an undersized hardgainer, you can’t afford to neglect anything. In this article, we address five muscles you probably haven’t been working directly and explain why and how you should.


This muscle runs underneath the biceps and is visible on the outside of each upper arm. It works with the biceps as a flexor of the elbow joint, but, unlike the biceps, does not have a role in supinating the forearm — as occurs in the outward rotation during supinating dumbbell curls.

WHY BOTHER? The brachialis adds width to your arms, and when the bi’s are flexed, a well-developed brach bulges out as an impressive knot on the outside between the biceps and triceps, supplying greater density, depth and details. We probably don’t have to sell you on growing a crucial “gun part,” but since you’re already hitting brachialis when you work bi’s, do you need to do more? Yes, because in palms-up or supinating curls, the biceps are doing the brunt of the work. To maximize brachialis development, do one type of curl that focuses on this muscle in each biceps session.

TRAINING To target the brachialis, curl a weight with either a palms-down grip or a thumbs-up grip. For the former, do barbell reverse curls with a medium grip, either standing or on a preacher bench. For the latter, do hammer curls with two dumbbells, simultaneously or alternating. Three or four sets of 10 to 12 reps should sting the brach, and because both of these exercises work the forearms (especially the brachioradialis) more than palms-up curls, you may want to do them at the end of your biceps routine and just before wrist curls and reverse wrist curls. (You are doing reverse wrist curls, right? Keep reading.)


The serratus anterior lies atop the outer sides of the highest eight ribs and connects to the upper, inner area of the scapula. The fingerlike ridges are visible just below the outer edges of the pectorals. The main function of the serratus anterior is to pull the scapula forward, as at the top of a bench press, if you let your shoulders come off the bench to raise the barbell higher than is customary. This muscle also works to stabilize the scapula and assists in rotating it upward.

WHY BOTHER? Visually, the serratus anterior muscles set off the pecs and abs and tie the front to the back. At lean bodyweights, development of this part gives a physique that “finished” look. OK, that’s snazzy and all, but as with brachialis, you may assume you’re already stimulating the serratus anterior — in this case, via pullovers and pulldowns. In fact, those exercises don’t do much more for the serratus anterior than give the part a good stretch, because, contrary to accepted belief, the motion of pulling your arms from overhead toward your waist is not a direct function of the serratus anterior.

TRAINING  Hold your arms straight out in front of you. Now, reach even farther, feeling your scapulas rounding. This is the primary function of your serratus anterior muscles. To duplicate this, do some chest presses with the same exaggerated range of motion. Don’t do this on your maximum sets, but instead incorporate it into your warm-up sets and, as you grow stronger, the lighter sets of a pyramid. You can also do pushups with the same scapula-rounding contractions and barbell front raises while maintaining this posture.


These two muscles run from just below and behind the ears (connecting to the base of the skull) to the top of the breastbone and collarbone at the base of the throat. Along with smaller neck muscles, the sternocleidomastoids act to tilt the head to the sides and, along with smaller neck muscles, allow the head to rotate and tilt forward.

WHY BOTHER?  If you don’t require neck strength for wrestling or football, you may not need to train these muscles. Some bodybuilders find that their necks expand from isometric strain during exercises like deadlifts and shrugs (not to mention the girth added by trapezius growth). Others, such as pros Chris Cormier and Hide Yamagishi, have done heavy neck training to muscle-up this area. How big you want a specific bodypart to be is your choice, but remember that your neck is usually the most visible indicator of strength — and it’s on display even when you’re fully clothed. Don’t be a pencilneck. A lot of hardgainers reading this could benefit from the sort of “headstand” that can never be compared to a writing utensil.

TRAINING  Some well-equipped gyms have neck machines, but if you don’t have access to one, lie face-up on a bench with your head off the end, put a folded towel on your face and hold a weight plate to the towel. Then let your head drop down as far as possible and lift it back up as far as possible. Repeat this while lying on your right and left sides and while lying face-down; the latter works the muscles at the rear of your neck. Do two or three giant sets of this four-direction rotation, “necking” in each direction for 12 to 20 reps.

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