Educational content only; this is not medical advice.
The blue-line plank position
Nelly uses the blue line to describe the overall shape of the plank. The spine keeps its natural curve rather than being deliberately flattened or exaggerated. The ribcage is treated as part of the axial skeleton, so its position contributes to the line of the trunk. This reference helps the participant organise the whole body, not just the shoulders.
The scapulae sit in a middle range between protraction and retraction. They are not pulled excessively towards one another, and they are not pushed as far apart as possible. Nelly’s position also calls for full depression without elevation. The aim is a balanced, supported shoulder girdle that can respond as the arms and trunk work.
The shoulder and scapula work together
The shoulder joint and scapula are not separate systems during a plank. The blade sits against the ribcage and moves with the arm as the hand presses into the support. Nelly’s approach is to coordinate the shoulder and scapula rather than pinning the shoulder blades in place or treating their position as an isolated correction.
Her blue-line setup includes soft elbows and a slight external rotation of the shoulders. These details help define the arm position without locking the elbows or forcing a squeeze between the shoulder blades. The participant maintains support through the arms while keeping the scapulae in the intended middle range and fully depressed.
Avoid excessive retraction and elevation
Pulling the scapulae hard towards one another takes the shoulder away from the middle range Nelly describes. It can also change the shape of the plank and make it harder to coordinate the arms with the ribcage. The cue is not to hold the shoulder blades rigidly; they remain part of a working shoulder system.
Elevation is a separate issue. When the shoulders stay lifted towards the ears over time, the scapular depressors are held in a lengthened position. Nelly’s cue is full depression, not a shrug or a strained downward pull. The coach can observe whether the participant can maintain that relationship while still breathing and supporting the body.
Keep the ribcage organised through the movement
The ribcage is part of the axial skeleton in Nelly’s explanation of the blue-line plank. Its organisation matters when the body changes shape, including during a plank-to-pike. The trunk needs to keep its relationship to the pelvis as the hips move; looking only at the shoulder blades misses how the full line is being supported.
As the participant moves between plank and pike, the coach can watch whether the natural spinal curve and ribcage position remain clear. This is not a demand to freeze the spine. The movement comes from the hips while the trunk remains organised enough to support the shoulders and control the transition.
Build stability before progressing to wheelbarrow
Nelly builds scapular stability before progressing a participant to more demanding exercises such as the wheelbarrow. The earlier plank work gives the coach a chance to see whether the person can hold the arm-and-scapula relationship, maintain the ribcage and manage the body’s line before adding more movement or instability.
Progression is based on what the participant can organise, not on completing a fixed list of variations. A coach can keep the support stable, reduce the range or return to a simpler plank while the participant develops control. Once the position is consistent, the next exercise can add a new demand without losing the foundation.
Coach the shape, not a fixed shoulder-blade pose
Nelly’s blue-line ideal is a coordinated position: natural spinal curve, organised ribcage, scapulae in mid-range and fully depressed, soft elbows and slight shoulder external rotation. The shoulder and scapula continue to work together. That combination gives the coach a practical reference for a plank and its progressions.
For participants, the goal is not to squeeze the shoulder blades together or shrug through the effort. For instructors, the useful question is whether the person can keep the intended relationship while moving. Build the stability first, observe the response and adjust the exercise before progressing to a wheelbarrow or another more complex variation.
Frequently asked questions
What is Nelly’s blue-line plank?
It is a plank with the spine in its natural curve, the ribcage organised, the scapulae in mid-range and full depression, soft elbows and slight shoulder external rotation.
Should the scapulae be fully retracted in a plank?
No. Nelly’s position is mid-range between protraction and retraction, avoiding excessive retraction while keeping the scapulae fully depressed.
When does Nelly progress someone to wheelbarrow?
After building scapular stability and observing that the participant can organise the shoulder, ribcage and body position in a simpler exercise.