Rotation vs twist

Twist defined

Feet planted, shoulders turn while holding weight—high shear on spine for some adults.

Rotation defined

Step toward target, then set load down—hips and feet turn as a unit.

Car trunk example

1. Place bag at bumper edge
2. Step toward trunk with feet
3. Lower with hinge—don't twist from driveway

Garden rake

Switch lead foot every few strokes; move feet instead of long twisted pulls.