Liquid buoyance muscle training device

A liquid buoyancy muscle training device, comprising:

• a liquid receiving tank;
• a buoyantly submergible member, which is provided therein with a regulation chamber, which selectively receives and holds liquid and gas to allow the buoyantly submergible member to selectively float in liquid contained in the liquid receiving tank;
• at least one bottom pulley, which is mounted inside the liquid receiving tank such that the buoyantly submergible member is floating above the bottom pulley;
• a rope, which has a first end, a second end, and an intermediate section connected between the first end and the second end, the first end being connected to a bottom of the buoyantly submergible member, the intermediate section being wrapped around the bottom pulley, the second end being arranged to extend upward to project outside the liquid receiving tank;
• a liquid regulation tank, which is connected through a liquid supply tube to the regulation chamber of the buoyantly submergible member such that liquid is allowed to flow between the liquid regulation tank and the regulation chamber through the liquid supply tube;
• and
• a gas supplier, which is connected through a gas supply tube to the regulation chamber of the buoyantly submergible member, the gas supply tube comprising a gas valve mounted thereto, the gas supplier being operable to supply gas through the gas supply tube into the regulation chamber, the gas valve being operable to selectively open and close in order to selectively discharge the gas from the regulation chamber through the gas supply tube to adjust a ratio between the liquid and gas contained in the regulation chamber.