Jessica Bento, Physical Therapist (Creator DVRT Restoration Certification, Knees Over Toes Course, DVRT Rx Shoulder, Knees, Pelvic Control, & Gait Courses)
When it came to helping people that I would see in the clinic all the time, it usually revolved around the “big three injuries”. That was shoulders, knees, and low backs. While the actual issues would vary, inevitably it seemed like we came back to the concepts of flexibility, mobility, and stability. I may not always know what caused the injury in the first place, but often I was left with patients that now had to address all three issues at once.
Flexibility, mobility, and stability, these are really hot topics right now in the fitness industry and It seems like all these terms tend to get lumped together and their meaning becomes lost. They are all not the same, in fact, they have quite different meanings but have strong overlap to one another, as that is where I think people get confused. If we don’t understand the real intent of what we are doing then we are truly guessing how we are trying to solve issues for people.
Let’s start with flexibility, when we tend to think of people that are flexible my mind goes to gymnasts who are capable of contorting their bodies in many different ways. That’s what I picture when I hear the word flexible. What does it mean to be flexible? Flexibility is the absolute range of motion in a joint or system of joints, and the length of the muscle that crosses the joint involved. So back to the gymnast, their ability to perform something such as the splits is due to flexibility of the lower quarter. It does correlate to mobility which we will discuss in a second but has nothing to do with strength, balance and or coordination. That is because flexibility doesn’t necessarily reflect what is happening with the nervous system.
So what is mobility? Isn’t it the same as being flexible? Mobility is looking at the joint and the degree to which the area where the two bones of that joint meet is allowed to move before being restricted by surrounding tissue such as muscle, tendons and ligaments. Mobility is the motion around a joint. Think of young kids that W sit, their hip mobility tends to be greater than when we are adults. Mobility tends to be more neurologically driven and sensitive to movement than just flexibility.
Lastly we have the hot topic nowadays of stability. Stability is the ability to maintain control of a joint movement or position. It is achieved by the coordination of actions of surrounding tissues and the neuromuscular system. Josh uses a much simpler quote from Dr. Brandon Marcello, “allowing wanted movement while resisting unwanted movement.” This can refer to a specific joint or whole body. What you will find is that the answer to improving stability of a joint WILL have a lot to do with what the whole body is doing as well.
So why all this talk? Well, I want to talk about shoulders, and one of the features of a normal shoulder is that the glenohumeral joint (the ball and socket joint between the upper arm bone and the shoulder blade), is very stable despite the vast range of motion available to the joint. Yet this joint tends to be the one joint I see so many issues with. People saying they can’t go overhead with weights, pain with movements, limited range of motion and so forth. So why if it has all these capabilities do people have so many issues?
I would like to believe its stability is the issue, the lack of mobility you see is really an issue with stability. Though it might appear outwardly as if range of motion is lost. It’s that the individual has lost the ability to control the joint. When we are talking about shoulders there is so much that can be affecting the joint such as the cervical spine, thoracic spine, posture and prolong positions through the day.
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Research has pointed to as much. This quote from a study on shoulder rehabilitation mentions the following, “…The prescription of therapeutic exercises that address both shoulder weakness and core dysfunction simultaneously, may serve as a transitional program between the initial shoulder rehabilitation program and the terminal sport specific functional exercises. Several studies have found an association between a decreased stability and a higher risk of sustaining a low back or knee injury.”
So how do we teach stability of the shoulder joint, in a way that can retrain and re activate our ability to control the movement better? Stretch? Stretch? Stretch? No…remember I said that it is my belief that most shoulder issues are stability issues vs flexibility and mobility issues. Stretching may make you feel good, but it is rarely solving the issue by itself.
The shoulder is very connected to the core, hips and feet. So the below examples can help quite a bit in instability, improving not only the shoulders but the hips too!
Half kneeling press outs with specific intent can go a long way in creating success!
This may seem odd as most think going overhead when you have upper body limitations would be impossible. However, when we create stability from the ground up we use tension, we often see that people can get into new ranges of motion pain free. Another study looking at the force and shoulder health of throwing athletes found, “Limitations in throwing velocity, pitch control, and bat swing speed may be secondary to decreased mobility and strength within the proximal kinetic chain, which must harness power from the lower extremities and core.” You can see trying to make the shoulder the focus is missing the larger picture of how our body actually performs. How can we use these ideas in practical ways though?
The difference of creating specific tension changes everything we do or don’t get from our exercises.
How do we even get overhead though? Don’t we have “bad” shoulders. I was a bit skeptical too as Josh would break down these drills and concepts. They made sense, but why would they be so profound? Then I actually tried them and I was amazed how when we brought science alive how it created such instant and powerful effects to movement. Creating that tension in the way I just described can instantly change one’s mobility and just as importantly how their shoulders feel during movement.
This is why I love DVRT and hope we continue to bring you real solutions to common issues so that you can really bring your strength to life! Check out these 3 examples so you can see how practical better mobility can be and how you can instantly improve your strength and movement!
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