One of the changes the internet has done to fitness programs is give people a greater focus on training their glutes. It started as, “Need to get faster? Train your glutes!” Then, “Knee pain? Work your glutes!” “Lower back pain? Squeeze those glutes!” There are certainly some merits here, but, now it seems to be at, “You have pain anywhere in your body? Glutes!” “Got cancer? GLUTES!” “Erectile Dysfunction? GLUUUUUUUTES!!!”
(Side note: Breathing seems to be the next iteration of this.)
My remote clients are usually well read. When it comes to the internet fitness world, they’ve been around the block. I always ask what people are currently doing exercise wise. Very often a ton of glute exercises are part of the response. Bridging, squatting, deadlifting, lunging, thrusting, you name it. The irony here is these people are enlisting my help because of some dysfunction they have, yet they’re training the ever loving shit out of their butt muscles. All the glute work isn’t getting the job done.
This post is going to cover why training your glutes often fails. And, by the end of this, you should be able to see why training your glutes, in a way, can actually be a bad thing.
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Anatomy isn’t that simple
Whether it’s a formal class or reading Wikipedia, pretty much anyone I run into, who knows anatomy, has learned: Muscle X starts here and ends there; Muscle X moves body here from there.
Our bodies aren’t quite that remedial.
Most anatomy learning resources are telling you what the body does when it starts from a neutral position. Our neutral position being the anatomical position. For our purposes we can be fancy and call this “Standing.”
So, while standing, “Muscle starts here and ends there; muscle moves body here from there.” Our bodies don’t do everything from a standing, neutral position though. What happens when we change our starting point? Or when we change our ending point? The muscles don’t always perform the same action.
The only muscle I remember going over this with in my earlier anatomy days was the pectoralis major. My first anatomy textbook stated:
- “Pectoralis Major: Flexes, adducts and medially rotates humerus, as in hugging or climbing.”
Looking at the muscle this seemed to make sense. The line of pull is pretty much up and in (flexion, adduction and medial rotation):
Eventually I came across a more thorough anatomy text. I remember having to read a few times, “Pec major extends the humerus…Pec major flexes the humerus.” I was like, “Wait, the muscle can do two, opposing actions?” Then I took a close, better look at the muscle:
It made sense. Based on where you’re starting, and which part of the muscle you’re referencing, the action of pec major changes. We can see the lines of pull of pec major don’t all point in the same direction, which is why a more thorough anatomy text will discern between a “Clavicular,” “Sternal” and “Costal” head.
If the arm is starting from flexion -your arm is elevated in front of you; pec major can pull the arm down (extension). If the arm is starting from neutral, or an extended position -your arm is at your side or behind you; pec major can flex the humerus.
At the time, this was revelatory for me. I distinctly remember thinking, “Man, I bet a whole lot of other muscles behave like this.” That was really the only one I came across, and it wouldn’t be something I’d delve into again for a while.
The other muscle which impacted my thoughts on this topic was the psoas. One day I read “The psoas is the only hip flexor active above 90 degrees.” Again, with some thought, this makes sense. If we look at the hip flexors we can see the psoas is the only one which starts above the hip. That is, above 90 degrees of hip flexion.
Therefore, the psoas is the only hip flexor which can pull the hip above 90 degrees.
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Be careful how you pick your exercises
You’re reading around, seeing over and over how you need to train your glutes, so you naturally think, “Ok, what’s the best glute exercise I can do?” You come across something like bridges / thrusting:
The reason you decide this is you’ve read this exercise has the highest glute activity of all glute exercises. Easy. Highest EMG activity = best exercise = you doing it. Except, as I went over a couple years ago in my post on Best exercises for the subscapularis, picking what exercise to do based on EMG activity of one muscle can be a poor, if not very poor, method of selection. You need to consider what other muscles are working, and how much they’re working, especially when we’re trying to iron out imbalances between those muscles.
If you don’t feel like reading that whole piece, here’s the short version: In the shoulder, the subscapularis, latissimus dorsi, and pec major all internally rotate the humerus. It’s very common for the lats and pec major to become dominant over the subscapularis. The pec major and lats will work way more than we want them to, and way more than the subscapularis. So, when training the subscap, we want to pick exercises which elicit a high subscap activity BUT a low pec major and lat activity. If we pick exercises where all the muscles are equally as active we’re not ironing out our imbalance. You have to get imbalanced to get balanced.
The glutes actually bring us back to my early anatomy days. Because with them it’s not just you need to be aware of what other muscles are doing (you always need to worry about that), with the glutes, much like pec major, you need to be aware of what other parts of the glutes are doing.
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The hip and knee pain
I’m going to quickly cover how the glutes impact knee pain. Basically, why people are always talking about them with knee issues. They certainly impact other joints, but we’ll only use the knee for the sake of brevity.
A common cause of knee issues, say, when squatting, is the knee(s) turn in:
Let’s go over what people typically learn when discussing glute anatomy:
- The glutes start at the back of the hip and connect at the femur.
- The glutes extend, abduct and laterally rotate the femur.
We’re only talking about gluteus maximus; we’ll come back to the others.
Because the knees cave / turn in during a squat, causing knee issues, and the glutes do the opposite motion -turn the knees out – the glutes can help alleviate the knee issue. Hence, “train your glutes.” Off to your bridging and deadlifting you go.
However, the glutes, much like pec major, can perform different actions based on where the body is and based on which part of the muscle we’re referencing.
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The glutes aren’t as straight forward as we like to think
If you know some anatomy -and if you’re reading this you probably do- your first thought here is likely, “Yeah, yeah, I know. We have different glute muscles. A glute medius, glute minimus, and glute maximus. BORING.” Fair enough. But that’s not the point of this.
Let’s first talk about glute medius.
I’ve written about this muscle before, here. I’ve talked about how when training the glute medius you need to discern between the anterior and posterior portions of the muscle.
Anterior gluteus medius:
- Abducts, internally rotates and flexes femur
Posterior gluteus medius:
- Abducts, externally rotates and extends femur
After abduction, these two sections of the muscle perform opposite movements. Even though we call it the “glute medius,” you really can think of this as two separate muscles. Keep in mind, our understanding of anatomy is simply where some dudes many years ago decided to say, “I think that’s a muscle. And that’s another one.” As Tom Myers has illustrated, we’ve learned our anatomy by where people have dissected. However, if you change how you dissect, you change your perception of our anatomy. With the glutes, if you go based on how the muscles function, you change your perception of where one glute starts and where one ends.
Why is this distinction important?
Let’s say you want to train your glute medius. Invariably, you start incorporating something like this:
You go with the “abduction” side of the equation. After all, this works the glute medius.
Moving back to our common cause of knee pain: The knee turns in too much. Part of this is the femur is adducting:
But part of this is the femur is turning inward:
That side lying leg lift is working the abduction, but what about the rotation? What if you’re doing your Jane Fonda’s with your knee like this:
Well, you’re actually giving in to your dysfunction. You’re making your body better at what’s causing you pain! (You’re working the anterior gluteus medius, amongst other things.) You need to iron out your form. Something more like this:
Moving on to the big boys
While the glute medius gets some love, we all know the glute maximus is where people are spending their time. Due to all the Glute Professionals (TM) popping up, it’s rare I don’t have people telling me how much they’re thrusting their ass up and down like a porn star.
The glute maximus:
- Abducts, extends and laterally rotates the femur
It’s similar to the posterior gluteus medius. Or so it seems. Enter the study: Variations of rotation moment arms with hip flexion.
This study made a model of the hip.
Using this model, the researchers were looking to understand how muscles which rotate the hip changed as the hip was flexed. For example, we know the psoas muscle flexes the hip. But can the psoas muscle play any role in rotating the hip? If so, does this role change as the hip moves? Does the psoas become a stronger rotator? Does it stop having any rotation ability? These were the types of questions looking to be answered.
The researchers intended on this being applicable to cerebral palsy patients. CP patients tend to walk with their hip excessively flexed and internally rotated.
(I’ve trained some with CP and I’ve seen this.)
The idea is then, which muscles contribute to this excessive internal rotation? And which muscles counteract it? Where you can then hopefully go about a course of treatment. It just so happens this excessive hip internal rotation, and to a lesser degree hip flexion, are also common factors in knee pain. The internal rotation is a common factor with hip pain too.
The muscles looked at were:
- Obturator internus
- Obturator externus
- Quadratus femoris
- Iliopsoas
- Gluteus minimus
- Gluteus medius
- Gluteus maximus
Regarding the glutes, the researchers didn’t measure “Gluteus maximus,” “Gluteus medius” and “Glute minimus.” They separated the GMAX into 6 compartments, GMED into 4 compartments, and GMIN into 3 compartments. As the hip went from 0 to 90 degrees of hip flexion, how did the potential action of these muscles, and their sections, change? I’ve mentioned how you can discern between some of them in terms of internal and external rotation while standing, but what about as the hip moves?
Since I’ve gone over it, let’s first look at the hip at 0 degrees of flexion. For example, when we’re standing upright:
If that chart is confusing, here’s what it’s saying: At zero degrees of hip flexion, a neutral hip positioning,
- For the gluteus medius:
- The anterior portion can internally rotate the hip
- The middle and posterior portions can externally rotate the hip
- For the gluteus minimus:
- The anterior portion can internally rotate the hip
- The middle and posterior portions can externally rotate the hip
- For the gluteus maximus:
- The entire muscle can externally rotate the hip
This is what I went over earlier. However, what happens as the hip goes through flexion? For example, when it’s at 90 degrees?
At 90 degrees of hip flexion (I’ve bolded what’s changed since 0 degrees of hip flexion),
- For the gluteus medius:
- The anterior portion can internally rotate the hip
- The middle and posterior portions can internally rotate the hip
- For the gluteus minimus:
- The anterior portion can internally rotate the hip
- The middle and posterior portions can internally rotate the hip
- For the gluteus maximus:
- The anterior and middle portions can internally rotate the hip
- Only the posterior portion can externally rotate the hip
Out of 13 compartments / sections of the glutes, only 2 could externally rotate the hip at 90 degrees of hip flexion. (Two posterior segments of the gluteus maximus.)
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Making sense of this
Using regular anatomy pictures of the glutes can make this confusing. I’m going to try and clarify things with my own drawings. Here is the hip at 0 and 90 degrees of hip flexion:
Let’s add some gluteal lines for the hip at 0 degrees. I’m only going to draw some upper glute max fibers:
This is consistent with our common understanding of glute max. The line of pull is back and a medial to the sacrum. That is, hip extension, abduction and lateral rotation:
When we flex the hip to 90 degrees we can see things change:
We can see the upper portion of the glute maximus now has, if anything, a hip flexion propensity -the study didn’t go over this, and I’ve only seen this mentioned in one other source, but it makes sense- and an internal rotation moment arm, which the study thoroughly went over.
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What’s all this mean? (Practical applications)
Back to our understanding of knee pain. During a faulty squat the hip flexes and internally rotates, often called excessive knee valgus. The same thing typically happens with stair ambulation:
To get rid of the knee pain we want to eliminate the internal rotation / we want to laterally rotate the femur. Again, based on our common understanding of the glutes -they laterally rotate the femur- we decide to squeeze dat booty all day son.
From everything I just went through, we now understand the upper gluteus maximus fibers can have an increasing influence on the internal rotation aspect. Can you see why “train your glutes” is an incomplete method? Squatting, hip thrusting, deadlifting, pullthroughs, whatever it is, all work the glutes. Yet, part of the glutes, such as the upper glute max fibers, may very well be overactive, which can be what’s causing the knee pain! Actually, 11 of the 13 glute compartments can be causing the knee valgus.
Say we’re doing a ton of hip thrusting as suggested by our Butt Squeezing Experts (patent pending). The upper glute max fibers will be firing as we expect them to. That is, the entire gluteus maximus is being significantly worked by loading it through hip extension. The idea being we’re hypertrophying the entire glute max.
In relation to the hip internally rotating too much, we’d want to lessen the contribution of the hip internal rotators and increase the contribution of the hip external rotators. More specifically, when flexing the hip, like in a squat, we want to really turn on the hip external rotators to prevent the hip from internally rotating / knee going into valgus. That thrusting isn’t working on this. It’s hypertrophying the entire glute. Some of which turns the knee in, some of which turns the knee out. Unless you’re also working on the rotational aspect of all this, you’re not getting anywhere.
The point here is all that glute work isn’t ironing out a potential imbalance within the glutes. And, the glutes don’t appear to function as commonly said. This is why people are spinning their wheels with all this shit. Yes, you are making your ass bigger. Yes, you are strengthening your glutes. Yes, you now act like an elitist moron because you squat and deadlift and other people don’t. But at the same time you’re not improving how your knee or hip moves. All you end up with is doing the same aberrant movement with a possibly bigger ass.
To stop having knee pain while going up a flight of stairs you don’t have to do 300 pound glute bridges. You need to move your knee from this:
To this:
In many cases, that’s all you have to do!
Stop worrying so much about specific muscles. It’s incredibly hard to memorize every single muscle and their action. Think how hard it is to memorize every single muscle, every single section of the muscle, and every action of the section of each muscle. (Many of which we haven’t researched.) It’s not going to happen. Memorizing every movement? In comparison, that’s pretty easy.
In fact, let me make this even more clear and confusing at the same time. I’ve seen plenty of people who will have great squat form. Their knees are out, there’s no valgus, etc. However, they stand and walk like this (left knee more pronounced than right):
Regarding how they move, they may squat great the 20 or so times they do it during a workout, but if they still stand and walk, which they may do for hours a day, with their knee caving in, well, no wonder their knee still gives them issues.
Regarding their anatomy, while squatting things work well; while standing things don’t. In fact, say this person has read so many times on the internet to “Push your knees out!” when squatting. To the point their knees really go out. If anything, they go out and laterally rotate too far. Then, while standing, their glutes -all of which turn the knee out- aren’t working enough. And, in squatting, their glutes -most of which turn the knee in– may very well also not be working enough! The obsession with squatting and getting their knees out at best, isn’t getting them anywhere, and at worst, is increasing their imbalance. Squatting with their knees out isn’t the solution for getting their knees out while they stand. Changing how they stand is the solution for changing how they stand.
In the discussion the authors of the study I reference go over how their hip model may be wrong due to their inability to exactly attach their model in the same way as human attachments. They also go over how people with certain body structures could change their study’s values.
In some sense, who cares? Move properly and everything turns on when it should, everything that gets strengthened gets strengthened, everything that needs to be stretched gets stretched, however you want to look at it, proper movement takes care of whatever indirect strategy you’re trying to employ.
A less complicated way of saying all this: If you want to relieve your knee pain during a certain activity, change how you do that activity. No, this isn’t always enough. But this should be your starting point, rather than thrusting and squeezing your ass all day. After all, porn is never a long term strategy.
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I want to mention this study is from 1999. 14 years ago. I’ve been involved in this type of stuff since then, as well as before then, and I can think of 3 people who have referenced this research. Keep this in mind the next time you see someone state they’re a self-proclaimed expert. For example, for as bad a rap as the psoas gets, the psoas is another muscle which helps externally rotate the knee, something the study also goes over. (It’s not much, but it can.) Meaning the psoas can help with knee and hip issues. Hard to fathom how this muscle has been demonized for well over a decade.
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Here’s the full table from the study if interested:
Wholistic Running
November 20, 2013
Great post! I agree, it isn’t just about doing certain exercises or not. It’s about teaching the body how to move more efficiently, aligned and is very individual.
jpdanna
November 20, 2013
Wait a minute Brian buddy…Unless I’ve gotten more dyslexic then usual, is this correct? Isn’t it only 2 compartments of the posterior G-max can do external rotation? Thanks I’m loving you…my new discovery! Joe
For the gluteus maximus:Out of 13 compartments / sections of the glutes, only 2 could internally rotate the hip at 90 degrees of hip flexion. (Two posterior segments of the gluteus maximus.) Date: Wed, 20 Nov 2013 19:12:26 +0000 To: merrimack27@msn.com
reddyb
November 20, 2013
Only 2 compartments could perform external rotation at 90 degrees of hip flexion. Where the hip is, is key. When the hip is in neutral things change quite a bit.
It appears, when laterally rotating the hip during something like a squat, what’s most important is not the glutes, but the deep hip lateral rotators.
Diane
November 29, 2013
http://dralisongrimaldi.com/index.php/the-association-between-degenerative-hip-joint-pathology-and-size-of-the-gluteus-maximus-and-tensor-fascia-lata-muscles
In case you were interested in some more studies.
reddyb
December 1, 2013
Wow, that was an interesting read.
Great find. Thank you for sending it my way.
Martin
December 11, 2013
Hello from Sweden! Glad I found your site, think you can help me.
I’m a soccerplayer and I have had major problems with my right hamstring that I have injuried a couple of times. Now its been over a year since the last time but still afraid something will happen. I even have trouble with my left rectus femoris that becomes stiff after practice. Feels like the musle is overworking. Any thoughts whats going on?
Feels like i’ve tryed everything, every exercise and every stretch there is but the problem is never solved. “Train your glutes”, “activate your glutes” is all in my head after reading threw the internet…..
I cant see any signs of anterior pelvic tilt on myself but some overextended knees.
Martin
reddyb
December 14, 2013
Hey Martin,
I’d have to see more from you in order to get a feel for what may be going on. It is true many hamstring issues are accompanied by glutes that aren’t working properly though.
I’d check out the “Hip Pain” category: http://b-reddy.org/category/pain-2/hip-pain/
There’s quite a bit on this stuff in there.
AnnaTheApple
January 22, 2014
Very interesting…but this leaves me in complete confusion about what I should be doing. It’s all well and good saying “well just move properly”…how do you do that then???
reddyb
January 22, 2014
I mean, that’s why physical therapy, personal training, etc. are professions. Amongst other things, they’re intended to show people how to move properly. That’s what this website is for: To, amongst other things, show people how to change how they move.
The point of this post wasn’t to show you how to move properly -although I give an example at the knee- it was to illustrate the necessity of changing the paradigm from “I just need to strengthen my glutes” to “I just need to change how I move (and MAYBE some emphasis on strengthening my glutes will help).”
The shift being people need to stop going, “I’m doing a ton of exercises to strengthen my glutes” to “I’m doing a ton of exercises to help my knee stop caving inward,” or whatever the movement dysfunction is.
Sean
August 30, 2014
Absolutely fascinating, Brian. I hope this way of looking at things becomes more predominant in the fitness/physical therapy world.
reddyb
September 1, 2014
Thanks Sean. Glad you liked it.
Sean
September 1, 2014
Brian, quick question: Would the principles here apply to a situation where the upper traps are weak/long and the levator scapulae are tight/compensating for that. You’d then want to minimize levator activation and maximize trap recruitment. A person might assume they should just do shrugs, but you’d end up potentially maintaining that imbalance and exacerbating the levator issue. Would shrugging while performing shoulder flexion help to avoid that because the scapulae would be in upward rotation thereby giving the levator some “slack”?
reddyb
September 3, 2014
Hey Sean,
I go over some of this in the following post, as well as in the comment section: http://b-reddy.org/2011/09/12/3-common-weak-muscles/
The technique of the shrug is crucial. One thing I didn’t go over in there is the levator is not necessarily always “tight.” It can be too active, but long. This gets a bit technical. Probably would necessitate its own post.
Long story short: When you shrug with the arms overhead, what happens at the scapula and neck is crucial. There are all kinds of ways to have a crappy shrug. So, just because the shoulders are in flexion doesn’t mean you’re in the clear. You’re usually on a better path though.
Sean
September 3, 2014
Thanks for taking the time to go over that, Brian. The article you linked to was great as well. The comments section on that has me thinking I’m probably a bit too focused on the actions of all the individual muscles. I’ve known for a while now how important movement is, but your blog is helping me to understand why that’s the case.
Chin
September 29, 2014
Thank you for the article, it was quite enlightening. As someone who suffers from knee pain the same way as the picture above, where the femur internally rotates and the tibia externally rotates, I have been trying to correct this with limited success. Although I have been doing my best to walk straight making sure to use proper gait with the weight loading on the sides of my foot and big toe- moving in a proper biomechanical pattern, so to speak, I still suffer from knee pain. What would be some exercises you could recommend to train the glute muscles in external rotation, so I would have a better knee position at rest? Regards.
reddyb
September 29, 2014
Hey Chin,
This manual should be right up your alley: http://b-reddy.org/2013/08/20/6-exercises-to-loosen-the-it-band/
sangeeta
October 27, 2014
Hi Brian,Do we have some effective stretches for the obturator internus,gluteus maximus and the psoas muscles that go extremely tight?I have issues with coccyx and these muscles have something to do with coccyx too?
reddyb
October 31, 2014
These are some exercises into hip flexion I like:
Backward Rocking (make sure lower back doesn’t round much, if at all): https://www.youtube.com/watch?v=f20DY_Bebew
Standing hip flexion: https://www.youtube.com/watch?v=l_E3CbS3g_0
Seated Kicks: https://www.youtube.com/watch?v=MQgzP3YaG0M
I never really directly stretch the psoas. It can get a decent stretch from the supine hip extension, but with the leg being bent, most will be really stretching out the TFL / Rectus Femoris: https://www.youtube.com/watch?v=R0Gz1Y6327A
I’m more often looking to wake the psoas up, work it, and strengthen it.
sangeeta
November 2, 2014
Thanks Brian,I started with the IT band and the hip flexion>90 however seated kicks is something I want to try too,however I wouldn’t be able to because of my coccyx pain 🙁
reddyb
November 3, 2014
Why would the seated kicks be a problem?
nicole
January 27, 2017
For the gluteus maximus:
The anterior and middle portions can internally rotate the hip
Only the posterior portion can externally rotate the hip
Out of 13 compartments / sections of the glutes, only 2 could internally rotate the hip at 90 degrees of hip flexion. (Two posterior segments of the gluteus maximus.)
^ Thank you for the article- very beneficial! However, could you please clarify the above portion? I am confused because I see it states ” the anterior and middle portions of glue max can internally rotate the hip in 90 flexion and only the posterior portion of glute max can externally rotate hip during 90 flexion.
Below that you state only 2 posterior segments of glute max can internally rotate at 90 flexion. Doesnt this contradict the above statement in that it first says the anterior and middle portions can internally rotate, followed with “only two posterior segments could internally rotate.”
reddyb
January 31, 2017
You’re correct. That should say “Out of 13 compartments / sections of the glutes, only 2 could externally rotate the hip at 90 degrees of hip flexion. (Two posterior segments of the gluteus maximus.)”
I updated the post. Thank you.