Patent ID: 8066623

Claim:
An in-water training and rehabilitation device for training or rehabilitating an objective muscle or muscles of mainly forearms by moving the same in water, the device comprising: a frame, the frame including a plurality of fixing holes; a substantially planar resistance part having at least one resistance plate that is attached to the frame, wherein a number of the at least one resistance plate is selectively variable, and wherein a position and an arrangement of the at least one resistance plate is changeable relative to the frame resulting in a plurality of configurations of the resistance part and resulting in the resistance part having a variable area; and a plurality of handles of different kinds, the handles being attachable to and detachable from the frame via the fixing holes, the handles being designed for use with a human hand, and at least one of the handles being selectively fixed to the frame, wherein in at least one configuration, the frame and the resistance part are configured to allow water to pass through a portion of the resistance part where the at least one resistance plate is not attached to the frame and not allow water to pass through a portion of the resistance part where the at least one resistance plate is attached to the frame, an arrangement of the at least one resistance plate is arbitrarily set by a user, an arrangement of one of the plurality of handles is arbitrarily set by the user, and when selectively fixed to the frame, the plurality of handles of different kinds extend outward from the frame along a plane parallel to a plane in which the resistance part extends.