One leg rests against the shoulder rest and the other against the edge of the carriage. Hold on to the short strap, reach overhead to create a long line, and repeat.
1Y.
Down or up.
Inhale to prepare, exhale to elongate the arm.
Develop strength of the core, internal and external obliques, and scapular stabilisers.
Progression: More springs.
Regression: Long strap.