A tank (1, 100) configured to carry out physical activity in a counter-current regime comprises a swimming section (2, 102), at least one propulsion section (3, 103, 103′) along which a fluid is forced, at least a first section connecting section (4, 104) and at least a second connecting section (5, 105) for the connection of respective ends of the swimming section (2, 102) and of the propulsion section (3, 103, 103′) at least one long fluid propulsion loop path, wherein the at least one first connecting section (4, 104) comprises a plurality of first curved channels and the at least one second connecting section (5, 105) comprises a plurality of second curved channels and wherein the platform (8, 108) is movable.

The invention relates to renewable clean energy field, discloses a fitness exercise energy acquiring method and system, the method includes steps: (1) user signs up and sign in the system; (2) the system acquires fitness exercise energy and its users related information; (3) the system alters acquired energy into usable energy form; (4) the acquired energy is used; (5) user benefit from the system settlement; the system comprises components: (1) fitness exercise energy information acquiring subsystem; (2) fitness exercise energy information server and communication network system; (3) fitness exercise energy acquiring device; (4) fitness exercise energy usable electrical current alteration subsystem; (5) fitness exercise energy output control subsystem. The present invention realize change of energy released during daily fitness exercise into usable energy, both do fitness exercise and generate clean energy, fitness exercises of human and animals will generate more than one hundred millions kWh per day, with reference to present fitness equipment, obtain energy conservation and environmental protection timeliness of fitness exercises.

A walking training system includes a treadmill, a center-of-gravity position detection unit that detects a center-of-gravity position of a trainee from a load received from a sole of the trainee on a belt of the treadmill, a posture detection unit that detects a posture of the trainee, a center-of-gravity position estimation unit that estimates the center-of-gravity position of the trainee from the detected posture of the trainee, a determination unit that determines whether a difference between the detected center-of-gravity position and the estimated center-of-gravity position exceeds a predetermined value, and a notification unit that sends, when the determination unit determines that the difference exceeds the predetermined value, a notification notifying that whether the difference exceeds the predetermined value.

A walking training system includes a treadmill, a center-of-gravity position detection unit that detects a center-of-gravity position of a trainee from a load received from a sole of the trainee on a belt of the treadmill, a posture detection unit that detects a posture of the trainee, a center-of-gravity position estimation unit that estimates the center-of-gravity position of the trainee from the detected posture of the trainee, a determination unit that determines whether a difference between the detected center-of-gravity position and the estimated center-of-gravity position exceeds a predetermined value, and a notification unit that sends, when the determination unit determines that the difference exceeds the predetermined value, a notification notifying that whether the difference exceeds the predetermined value.

An exercise assembly includes a treadmill that has a belt which can be walked upon. The belt has a braking mechanism and the braking mechanism inhibits the belt from being moved thereby presenting resistance to a user attempting to walk on the belt. A set of pull bars is coupled to and extends upwardly from the treadmill for simulating pulling a heavy object. A set of push bars is coupled to and extends upwardly from the treadmill to simulate pushing a heavy object. A spool is rotatably integrated into the treadmill and the spool is in mechanical communication with the braking mechanism such that the spool resists being rotated. A rope is wrapped around the spool and the rope resists being pulled on by the user when the user walks on the treadmill for simulating pulling a heavy object with the rope.

An exercise assembly includes a treadmill that has a belt which can be walked upon. The belt has a braking mechanism and the braking mechanism inhibits the belt from being moved thereby presenting resistance to a user attempting to walk on the belt. A set of pull bars is coupled to and extends upwardly from the treadmill for simulating pulling a heavy object. A set of push bars is coupled to and extends upwardly from the treadmill to simulate pushing a heavy object. A spool is rotatably integrated into the treadmill and the spool is in mechanical communication with the braking mechanism such that the spool resists being rotated. A rope is wrapped around the spool and the rope resists being pulled on by the user when the user walks on the treadmill for simulating pulling a heavy object with the rope.

A treadmill having novel rapid assembly and safe storage features is provided. The treadmill includes a support base, a platform, a pair of upright arms, and a top assembly including a bridge connected to an upper and a lower handrail, the lower handrail includes a bottom portion having pivot flanges, each pivot flange has a first aperture therethrough and a bracket has a second aperture therethrough. A second pivot fastener is installed to connect and attachment tang on the upright arms with the pivot flange of the top assembly. The upright arms and the top assembly can each be rotated a predetermined angle for fixed installation of the upright arms and top assembly with respect to the long axis and platform.

A treadmill having novel rapid assembly and safe storage features is provided. The treadmill includes a support base, a platform, a pair of upright arms, and a top assembly including a bridge connected to an upper and a lower handrail, the lower handrail includes a bottom portion having pivot flanges, each pivot flange has a first aperture therethrough and a bracket has a second aperture therethrough. A second pivot fastener is installed to connect and attachment tang on the upright arms with the pivot flange of the top assembly. The upright arms and the top assembly can each be rotated a predetermined angle for fixed installation of the upright arms and top assembly with respect to the long axis and platform.

An exercise system includes a workout server. An active workout session is created for a user on the workout server. An exercise information is collected for a user at a first exercise device and a second exercise device. The exercise information is tracked to the active workout session and maintained on the workout server. This allows a user to maintain a workout session across multiple devices.

An electric treadmill includes a motor and a motor driving circuit. The motor driving circuit is operable to control electric current flow from a positive electrode through the motor to a negative electrode to drive the motor. The motor driving circuit has a switch path connected between the positive electrode and the negative electrode. The switch path has a resistance element and a switch element connected in series. When the motor driving circuit receives power, the switch element will be switched to a disconnected state, so that the resistance element is inactive. When the motor driving circuit does not receive power, the switch element will be switched to a connected state, so that the resistance element becomes a load between the positive electrode and the negative electrode for consuming power generated by the motor when the endless belt is driven to rotate by an external force.