A system (1) for handling robotic joints arranged to assist the movement of a user, said system (1) comprising a predetermined number p of robotic joints R K (R 1 — R p ), with k = 1,2,...,p. The system (1) comprises then a predetermined number n of actuation units G i (G1 — Gn), with i= 1,2,...,n, each actuation unit G i comprising an inlet l i (l 1 - l n ) arranged to provide an inlet power Q i , a predetermined number m i of outlets O ij (O11 - Onmn), with j= 1,2,...,m i , each outlet O ij arranged to express an outlet power T ij , a number m i of motion transmission chains M ij (M11 - Mnmn) arranged to transfer said outlet power T ij to at least one of said robotic joints R k . Furthermore, each actuation unit G i is adapted to be disposed between a number m i of configurations C ih , in each configuration C ih said inlet l i being connected to a number h of outlets O ij , with 1 ≤ h ≤ m i .