【Supple】 , 【limber】 , 【lithe】 , 【lithesome】 , 【lissome】 can all apply to bodily movements and mean showing freedom and ease in bending and twisting.
【Supple】 implies great flexibility of muscles and joints, perfect muscular coordination, and rapidity yet smoothness in change of posture or movement.
【Limber】 also implies great flexibility of muscles and joints and the power to move quickly or easily, but it carries no clear suggestion of grace or of muscular coordination.
【Lithe】 is applied chiefly to persons or animals that are slender, 【supple】 , nimble, and usually graceful in movements.
【Lithesome】 may suggest an agility and vigor that makes for sure graceful movement.
【Lissome】 tends to suggest a light easy 【supple】 grace in bearing or in movement.