NotesPractice
Why Your Shoulders Hurt in Chaturanga
One of the few genuinely risky shapes in a standard class. The mechanics, the common failure, and how to rebuild it from the floor.
Contents
One of the very few genuinely risky shapes in a standard class, and it is performed several hundred times a week by people in flowing traditions. The mechanics are worth understanding precisely.
What the pose is
Chaturanga Dandasana — four-limbed staff pose. A plank lowered until the upper arms are parallel to the floor and the elbows are bent to ninety degrees, held with the body in a straight line.
It is a strength hold, not a transition. In most classes it is treated as a transition, which is the root of the problem.
What goes wrong
The elbows flare outward.
When the elbows go wide, the upper arm rotates internally and the head of the humerus moves forward in the socket. In that position, the tendons of the rotator cuff — particularly supraspinatus — and the bursa above them are compressed between the head of the arm bone and the bony roof of the shoulder.
Once or twice, nothing happens. Two hundred times a week, for years, and the tissue does not keep up with the damage. This is the single most common mechanism of shoulder injury in modern yoga and it is entirely avoidable.
The shoulders drop below the elbows.
Going lower than ninety degrees at the elbow puts the shoulder into a position where the joint is least stable and the muscles have the least leverage. It looks lower and stronger; it is neither.
The middle sags.
If the abdominal wall is not holding, the pelvis drops and the lower back takes the load. The shape is no longer a straight line and the shoulders are supporting an asymmetric load.
The shoulders round forward and the chest collapses.
The shoulder blades slide forward and the chest sinks between the arms. From there the shoulder joint has no stable platform.
It is done too fast.
Falling through the position rather than lowering to it means arriving at the bottom with momentum, which the joint absorbs.
The correct version
From a plank:
- Shift forward so the shoulders come slightly ahead of the wrists before you lower. Without this shift, lowering puts the shoulders behind the elbows, which is a mechanically poor position.
- Lower with the elbows tracking straight back, hugging in against the ribs. The upper arms should stay close to the body — if someone were standing above you, they should see the arms roughly parallel, not chicken-winged.
- Stop when the upper arms are parallel to the floor. Elbows at ninety degrees. Shoulders level with or above the elbows. Not lower.
- Keep the shoulder blades wide, pressing the floor away, not squeezed together.
- Hold the middle. The body is one line. Abdominal wall engaged, pelvis neither dropped nor lifted.
- Look slightly forward, not straight down and not up.
The honest assessment
Most people cannot do this.
The strength required is substantial — considerably more than a push-up, because the range is controlled and the elbow position is narrow. Attempting it without that strength produces the flared, collapsed version, which is worse than not doing it.
Building it
Stage one: knees down. For months.
Knees on the floor, and everything else identical: elbows back along the ribs, shoulders no lower than elbows, shoulder blades wide, straight line from knees to head.
This is not a beginner's version to be embarrassed by. It is the same pose with less load, and it is the correct place to build the pattern. Most people should be here for the first year or two of practice.
Stage two: negatives.
From a full plank, lower as slowly as you can — five seconds — to the Chaturanga position, then drop the knees and reset. Five repetitions.
Eccentric loading builds strength faster than anything else here.
Stage three: holds.
Get into the position with the knees down, then lift the knees and hold for five seconds. Build to fifteen.
Stage four: the full version, occasionally.
Even then, take the knees down in most rounds of a long sequence. Fifty full Chaturangas in a class is not a strength programme; it is volume without quality.
The supporting work
Pulling. The most important item and the one nobody does. Yoga is almost entirely pushing, and a practice with a high volume of Chaturanga and no rows or pull-ups builds a real imbalance — strong front, weak back — which is itself part of why the shoulder sits badly.
Two sets of rows and some hanging, twice a week, changes this.
Serratus work. Plank with the shoulder blades actively wide, pressing the floor away. Wall slides. This muscle holds the shoulder blade against the ribcage, and when it is weak the blade wings and the shoulder loses its platform.
External rotation. Elbow at your side, rotate the forearm outward against a band. Fifteen a side. Dull, and it is what keeps the rotator cuff working.
Thoracic extension. A rounded mid-back changes the resting position of the shoulder blade. Rolled blanket along the spine, daily.
If it already hurts
Stop doing it. Not a reduced version — stop, for a few weeks.
Substitute: knees-down Chaturanga if that is pain-free, or skip the lowering entirely and go from plank to Downward Dog, or take the whole vinyasa out and rest in child's pose.
Get it looked at if there is pain at rest, at night, on lifting the arm to the side, or if it has lasted more than a few weeks. Shoulder impingement and rotator cuff problems respond well to proper rehabilitation and badly to being practised through.
Then rebuild from knees down, and add the pulling work permanently.