Beginner roller skating
Your Shoulder Blades Hold the Arabesque Up

Everything above the waist decides whether the shape stays over the skate. Draw the shoulder blades together, open the chest, keep the upper body switched on — a soft back folds forward and takes the whole position down with it. And place your arms from the very first attempt instead of adding them once the leg works: they are not decoration on top of the figure, they are where the balance actually sits. Quad technique, from Najete Kada.
You will spend your first arabesques thinking about your legs, which is reasonable and is also why the position keeps collapsing.
Everything above your waist decides whether the shape stays over the skate. Draw your shoulder blades together, open the chest, and keep the upper body switched on. A soft back folds forward and takes the whole position down with it, and no amount of leg work compensates for that.
The arms come with the same warning. Place them from the very first attempt rather than adding them once the leg works. They are not decoration applied to a finished figure; they are a large part of where the balance sits, and a position learned without them has to be relearned with them.
This is the least glamorous half of the move and the one that separates an arabesque you can hold from one you fall out of. Quad technique, from Najete Kada's Tuto roller series. She is a French champion in artistic roller skating and teaches quad; nothing on this page is a claim about inline skates.
Keep going: this is one section of the full Roller Skating for Beginners guide — sizing, gear, stopping, and where to skate, in one page.