Scapulohumeral Rhythm
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- เผยแพร่เมื่อ 9 ก.พ. 2025
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This is not medical advice. The content is intended as educational content for health care professionals and students. If you are a patient, seek care of a health care professional. The scapulohumeral rhythm defines the joined movements of the scapula and humeral head. It can be evaluated during active abduction. The scapula and humerus will follow a sequence of movements, which Kai explains with the help of visual cues.
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A vert complex subject, made very simple, thank you , keep up the good work.
Thanks, appreciate it!
Pro tip : watch movies on flixzone. Me and my gf have been using them for watching a lot of movies these days.
@Ray Zayd Definitely, I've been watching on Flixzone for since december myself :D
Thank you @Physiotutors !!
You’re welcome
excelent resource. Will recommend to anyone
Thanks a lot Dinis, appreciate it!
greatly explained 😊 got my concept clear
Amazing 🎉well done 👍
Perfect!!!!!!!!!!!!
Very useful and easy to understand..Thank you
Could you give me a journal about your explanation?
Thank you guys
Your videos are great way for learning
You're welcome, glad to hear! Thanks for subscribing Golrokh!
Excellent!!
The video shows that in Phase 1 humerus abducts 30 degrees , Phase 2 another 40 degrees, and Phase 3 another 60 degrees. If that is true, how come the total degrees of humeral abduction come up to 120 degrees at the end? Phase 1+2+3 = 30 + 40 + 60 = 130 degrees. What am I missing? Are these numbers just approximations for each phase? It will be great if you can clarify.
There is lateral rotation/upward rotation of scapula which is adding to the humeral movement.
Sir please upload thumb and musculature of biomechanical function
Hi i am doing a university project on the scapulohumeral rhythm. I have done some filming of participants performing Abduction of the arm and I am just wondering how you best measure the angle of movement of the scapula when analysing the video. I am using the program of dartfish which has an angle tool. Cheers.
excellent boys
Ur welcome pasha!
Does the scapulas descending motion in this video have normal movement? And why or why not?
Hi Guys! Sorry just confused there slightly with the clavicle rotation. In phase three you mention 30-50 posteriorly and 15 elevation. However you then mention it is only 5-8degrees? Also the total clavicle elevation from all phases equals to 35 degrees- but then mention 20 degrees at the ac joint and 40 deg at the sc joint - which equals 60 deg.
Sorry for this painful question LOL, thanks
Hi Brittany. The 5-8° is the relative rotation to the acromion because of scapular rotation. 30-50° is the total amount of rotation measured along the long axis of the clavicle
Hi! Thanks a lot for this really helpful video.I just wanted to ask d involvement of the scapular muscles in scapulothoracic rhythm especially the upper traps.How their coordinated movement brings about effective rhythm.A video on that would be great! Thanks!!
Hey Fatema. On Friday, we are publishing a video on scapular alignment and discussing the role of the different muscles around the scapula in scapular movement. I think this might be for you
+Physiotutors Thanks!! Looking forward to it.
Do you agree that at a 120-degree abduction of the humerus, the latter is pushing against the acromium and therefore stretching the coracoacromial ligament? Do you think that the passive hang, if performed daily, can help increase the subacromial space with time? I have had bicipital tendinosis due to shoulder impingement for 4 months now. After I attempt to do a passive hang, I feel pain and stiffness when I lower both arms slowly in front of me. The same pain occurs in shoulder flexion. Can you tell why the pain is occuring after a passive hang and which structures are involved? In the passive hang position, as far as I know, no structure should get impinged since the cuff muscles all lie behind the humerus in that position.
The idea of shoulder impingement is highly flawed.
There is research showing that people with shoulder pain actually have more inferior glide than people without: www.ncbi.nlm.nih.gov/pubmed/25103132
On top of that, most rotator cuff tears are seen on the underpart of the tendon and not on the upper part where it is said to impinge between the roof of the acromion and the humeral head.
'Impingement' is therefore nowadays called subacromial shoulder pain or just shoulder pain as it is pain coming from the rotator cuff and/or the bursa. What tendons need to recover is load that is appropriate to the tendons reactivity.
So you should train your rotator cuff under the guidance of a physio.
please come up with full shoulder examination in Physio point of view with useful special test and diagnosis.
+Tapsil Sheth have you checked out our shoulder assessment playlist ?
Hlllo ..phySio tuitor .some clinician say during humeral abduction the sc end the clavicle slides inferiourly ..... kindly clear ...becoz in treatment they give inferior glide to clavicle in sternal end to improve elevation
There is movement to be observed at those joints during Abduction of the shoulder. Haven't heard of the described SC mobilisation. Also wouldn't look at the SC joint as the main limiting factor in reduced Abduction
What about spine?
What about the lateral flexion in the contralateral side of the spine during the last phase?
very educative video thank you, but i see that his scapula is sticking out so is this scapular winging or some other compensation movement
Have a look at our videos on scapular dykinesis Antonio. Wouldn't rate Andreas' shoulder as dykinetic though.
Super filmpje! Welke bron hebben jullie hiervoor gebruikt?
Really nice video! What is is the source of the information? Thanks you.
't is al een tijdje geleden maar volgens mij was dat gebaseerd op Magee. Echter wordt de verhouding van 2:1 beïnvloedt door heel veel dingen zoals geslacht, gewicht, sporter/niet- sporter en nog veel meer. In onze online cursus hebben we het uitgebreid erover.
Kijk eens onze video over Scapular Dyskinesis Myth busting. Daar zit in de video beschrijving ook een bron van Kirby die 2:1 ooit beschreven heeft.
@@Physiotutors Bedankt voor je antwoord! Fijn dat jullie zulke goede content maken!!!
How can a reduced internal rotation in one shoulder affects the scapulohomeral rythm?
Maybe this video can help you further: th-cam.com/video/n2HN3AAepwE/w-d-xo.html
In scapulohumeral flexion rhythm is similar? I don't find out rhythm in flexion anywhere.
Yes, it's almost identical
Hello! During descending phase of arm overhead motion. My right scapula jumps way quicklier than the left. Why is that and what can i do about it?
Strengthen your serratus anterior and stretch your rhomboids. You can do protraction exercises for the former and stretches there are plenty you can google them. 👍🏻
What about upward rotation of the scapula ? or what do you mean exactly by lateral rotation of the scapula ?
+norhan abbas upward and lateral rotation are the same.
Sir!I have subacromial sub deltoid bursa diffusion shown in sonogram. Since 3months I do pt.my hand can't move back properly,having radiant pain in upper arm.By turning back my hand ,tremendous pain on top of humerus like hinges.which exercise will helo me.pl.guide.I am 62.having cervical &herniated disc...c456.
Hi Gayatri, we can never give a recommendation on a case that we cannot judge personally through a thorough patient-history and assessment. Therefore, our advice is to contact a local physiotherapist (which you did) and work together with him or her on your problem. Sorry and get better soon!
what happens to the scapula during shoulder flexion? Can you do a video on this?
Hey cliff, the rhythm is pretty much identical in Flexion as it is in ABDuction. So it's not necessary to do another video on it
Cheers
I would say the only difference is that you have a earlier posterior tilt of the scapula right?
I experience shoulder pain in my left shoulder when depressing my shoulders whilst hanging from a bar. A lot of people call this an active hang.
Is it because I'm messing up the Scapulohumeral Rythm?
Impossible to say. We'd advise you to contact a local physio or our partner yourphysio.online
Thanku for vedio...
If their is winging of scapula will it limit the RANGE OF ABDUction... or their will be free abduction ??????
Ur welcome. Good question! Usually the body finds a way to achieve their movement goal, in this case abduction, by recruitment of a different muscle pattern than what would be described as 'ideal' by the literature.
So what you see in for example patients with should pain is more recruitment of the upper trapezius in order to compensate a weak/injured rotator cuff.
In case of winging, a possibly weak serratus and lower trap might be compensated by more activity by the upper trapezius
Is it normal to have a scapulohumeral rhythm of 1:1? When I move my arm, my scapula always moves with it. It’s really hard to move my arm up above my head, what’s wrong with me?
Really advise you to get your situation evaluated individually.
We can recommend you to get in touch with our partner www.yourphysio.online.
No way this guy says "AB duction" 💀💀
For better clarity yes.
All the professionals do.. lol
Literally every medical professional says “a-b-duction” and “a-d-duction” because they sound so similar
i want squeeze that pimple on the back of the right scapula :D
😂😂😂🎯