Tailbone
The desired action is a targeted tailbone tuck rather than a broad lower-back lift or arch. In the analogy, the hand represents the tailbone. The intended movement is to lift only the tailbone-like hand portion rather than the whole arm un…
1 sources - 3 claims
The desired action is a targeted tailbone tuck rather than a broad lower-back lift or arch. In the analogy, the hand represents the tailbone. The intended movement is to lift only the tailbone-like hand portion rather than the whole arm unit.