What's Your Weak Link?

Train these often-neglected muscle groups and watch your bench, squat, press and deadlift skyrocket.

The difference between the guy in the gym who benches 275 and the guy who benches 405 couldbe a few needles in the ass, quad, or delt (usually on an alternating rotation), but in many cases it comes down to addressing the performance of “problem muscles.”

Sure you can muscle up a squat with 1.5x your bodyweight, and kudos to you for doing it. But what is it that makes it that much harder to get to 2 or even 3 times your bodyweight? The plateaus from this point on seem endless. Well Biff, minor muscle groups sometimes need major attention when strength plateaus are the issue, so this nifty combo of info and remedies should fix you up right quick.

There are a few often-neglected muscle groups that can make or break an ass-kicking performance in your bench, squat, press or deadlift. Let’s go over them one at a time.

Problem 1: Sub-Par VMO’s

The VMO (Vastus Medialis Oblique) or “teardrop” quad muscle near the knee, assists in knee extension and keeps the knee tracking in the right direction, namely straight ahead.

So when you look like you’re doing your best Michael Jackson choreography in the bottom of a heavy squat, chances are this muscle isn’t doing enough to disallow your knees from coming in towards each other (or just plain wobbling) under the load. It’s vital to acknowledge the importance of the VMO in heavy leg exercises, so let’s zero in on strengthening them.

Here’s the bread and butter - most single leg or split-stance leg exercises will hit the VMO.

Unilateral movements call for greater stability because, well, you’re using one leg instead of two (shocker!). Moreover, the deeper your go in your leg exercises, the more the VMO will get stimulated. They are most involved in acute knee extension, meaning the smaller you make the angle at the knee, the harder they work to help extend it.

Long story short, you should make it your goal to squat below parallel. Way below parallel.

Note: A rounding of the low back while attempting deep, below-parallel squats may be an indicator that you need to do some flexibility work to the hamstrings, hip flexors, and adductors, along with stiffening of the lower back to maintain tension.

Good News about Bad Knees

Strengthening the VMO usually has a twofold benefit, as its weakness is usually a contributor to knee pain.

Patellar Femoral syndrome (PFS) occurs as a result of overuse to the patellar tendon, which articulates with the quadriceps muscles directly above the knee. When the VMO is inactive, load stress gets shifted to the remaining quadriceps muscles in loaded activity, causing more joint stress than normal.

This can lead to inflammation of the connective tissue and the chronic injury is born. Here are 2 simple isolation exercises you can add to your program to stimulate some VMO activity.

Peterson Step Ups:

  1. Stand with one foot on a step about 8 to 12 inches off the ground. (To start off with, the first step of most staircases works well).
  2. Keeping the free leg straight, slowly lower it to the ground, heel first. (Don’t be afraid to let the knee come forward over the toe on the step.) Pressure should be towards the ball of the foot in the negative or lowering phase, and “roll back” the pressure towards the heel at the top of the lift.
  3. Return to the starting position by straightening the working leg. (Make sure not to bounce off the free leg. In other words, the free leg should not provide any assistance).

Aim for sets of 12-15 reps per side, and look to increase the height of the step before adding resistance.

Terminal Knee Extensions (TKE):

Set up a cable pulley to knee level, and with a split stance, attach the strap around the back of the lead knee.

Let the cable pull the knee forward over the toe.

Keep the rest of the body stationary and simply extend the lead knee by pulling it backwards. Keep the full foot on the ground, and focus on squeezing the VMO especially. (TKE’s can also be done with a band, so the resistance increases as the rep progresses.)

Aim for very high reps. I’d recommend anywhere from 20-30.

In both exercises, lift slowly and hold at the end position. Remember that the goal is to fully activate a sleeping muscle, so explosiveness can take the backburner for now.

Coupling these two exercises with some good, aggressive foam rolling of the IT band and other quad muscles can help get your knees back on the right track (pun intended), and your squat should finally start making some leaps and bounds.

Problem 2: A Really Crappy Rotator Cuff

Instability under heavy loads in pressing exercises often indicates weakness of the external rotators. The result of such muscles being weak usually equals a grandma-esque bench press.

Muscles like the supraspinatus, infraspinatus, and teres work well to stabilize the shoulder capsule when coupled with a strong set of rear delts. A few things can cause the rotator cuff to become weakened or inactive, i.e. tightness through the pec muscles, but first let’s focus on the strength and tightness of the upper back musculature.

All of the rotator cuff muscles originate on the scapulae, as you know, so it’s important to get the shoulder retractors as strong as possible.

Basic (but properly executed) exercises like regular and wide grip rows, bentover rows, along with reverse flies and their variations will assist with this.

It’s also important to release the pec major and minor through flexibility work and specific movements, so the isometric strength of the external rotators improves. This will not only improve posture and mobility of the shoulder, but will keep the shoulders set and locked through your entire set of presses.

Luckily there are a few exercises to help make all the above come true.

Band Pull Aparts

  1. Hold a band or tubing at arms length with a wide, palms-down grip.
  2. Keep the band at eye level to start, and pull outwards and downwards to pull the band towards the neck area. Focus on hitting your rear delts and lower traps.

Lying Internal Rotations

This exercise will allow the pec minor to be pre-stretched before each rep and allow the subscapularis (the 4th rotator cuff muscle) to activate from zero momentum.

  1. Lie on the ground face up, and place one arm out to 90 degrees, as though at the bottom of a bench press.
  2. With a dumbbell (a light one!), lower the weight to the ground by allowing gravity to slowly externally rotate the arm. Don’t let your elbow slide!

Scapular Wall Slides

  1. Stand straight with your back against a wall and with no weights and assume a shoulder press start position. Every joint should be in contact with the wall (heels, butt, upper back, shoulders, elbows, wrists, fingers!).
  2. Perform the shoulder press movement pattern, maintaining contact on the wall the whole way through. Make sure the wrists stay on the wall. If you’re tight, don’t plan on this being comfortable.

(If you just can’t do this movement correctly, you can begin with your feet 6 inches away from the wall, but that’s all I’ll allow. This will improve the strength endurance of the external rotators through a full ROM.)

Try those 3 exercises as a tri-set for 4 sets of 15-20 reps each as a supplement to your current program. There’s just no way you won’t benefit.

Problem 3: You Lack Pelvic Balance

As I mentioned earlier, your squat performance will definitely be sensitive to the tissue quality of the muscles that attach to the pelvic girdle. The hip flexors, hamstrings, and glute med/max all need to have relative strength balances and flexibility to maintain proper hip girdle health and to promote a nice, large ROM for all your leg exercises.

Think of it this way: If you were to tie two bands together, one being a bigger, stronger one, and the other one being a weak, skinny one, and started pulling those bands apart at the same rate with the same force, obviously the fat band would pull the skinny one into more of a stretch.

Still with me?

The same thing would happen with a pair of tight hamstrings or hip flexors vs. a weak lower back. An imposed load (like a barbell squat, for example) would cause the tight muscle to pull on the entire pelvis and thus increasingly deform the low back the further down you go.

Foam rolling and stretching to hips and hamstrings won’t harm you, but think about exercises that will help perpetuate the flexibility gains that you’re striving for:

  • Rear Leg Elevated Split Squat with added range of motion
  • Reverse Hyperextensions
  • Barbell Step Ups
  • Reverse Lunges From Deficit

The above are all great exercises to target the posterior chain, disperse lower back overload, and keep hip flexors open, and they all go well as supplementary exercises to a squat workout.

As I mentioned in my last article, it’s important not to separate muscle tightness from weakness in every case, and the psoas is an important muscle to worry about activating.

Doing so will create added stability to the pelvic girdle as you go through your movements. Adding the right balance of flexibility and tightness to the surrounding muscle groups can mean an instant improvement in performance.

Now who wouldn’t want that?


Lifting big weights, and getting big muscles is what most people who read this magazine are after (to some degree, anyway). Sometimes it goes beyond simply taking a look at your stance or setup for your lifts to work out a few kinks.

When you work out the weak links so that your foundation is stronger, the outcome will surpass anything you dreamed of.