A roller skate including a frame provided to receive a plurality of wheels; a sole adapted to support the user's shod foot; a heel stiffener; a foot retaining arrangement, capable of being in an open state, which enables insertion of the user's foot and, in a closed state, enables adjustment of the foot retaining arrangement around the user's foot, the foot retaining arrangement including: a forefoot anchoring, an instep anchoring, the forefoot and instep anchorings each having a pivot zone about which the foot retaining arrangement pivots when it is moved between the open and closed states; a forefoot fastening device, an instep fastening device adapted to keep the retaining arrangement in the closed state; and an adjustment mechanism enabling adjustment of the retaining arrangement to the morphology of the user's foot.

 
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> Robust consumer lifting device-power unit

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