Hydrotherapy treadmill

A hydrotherapy treadmill, the treadmill comprising:

• a treadmill main body including a treadmill belt, submerged in a water body, mounted on a support rack having a first and a second longitudinal side rails;
• a base frame configured to mount the support rack and the treadmill belt;
• a plurality of watertight cavities in the treadmill belt and the base frame configured to increase the buoyancy of the treadmill main body:
• a first roller and a second roller rotatably mounted on the support rack and positioned between and substantially perpendicular to said first and second longitudinal side rails, wherein the treadmill belt is an endless belt mounted around and extending between the first roller and the second roller for rotation therewith;
• a transmission system comprising:
• i) an electrically powered hydraulic pump, wherein the electrically powered hydraulic pump rotates a hydraulic motor of the treadmill belt via a hydraulic input hose and a hydraulic output hose connected to the treadmill main body;
• and
• ii) wherein the hydraulic pump is powered by plugging, into a 120-volt power supply, a cord of a portable power unit mounted on a rolling cart.