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A treadmill includes a base, a platform, a universal joint, two elevators and two telescopic elements. The universal joint is used to connect a rear portion of the base to a rear portion of the platform. Each of the elevators includes a post supported on a front portion of the base and a carriage mo

A treadmill includes a base, a platform, a universal joint, two elevators and two telescopic elements. The universal joint is used to connect a rear portion of the base to a rear portion of the platform. Each of the elevators includes a post supported on a front portion of the base and a carriage movably supported on the post. Each of the telescopic elements includes an end connected to a front portion of the platform and another end connected to the carriage of a corresponding one of the elevators.

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1. A treadmill including: a base;a platform with a looped belt wound around a plurality of rollers;a universal joint for connecting a rear portion of the base to a rear portion of the platform to enable the platform to tilt relative to the base about a longitudinal axis and a transverse axis;two ele

1. A treadmill including: a base;a platform with a looped belt wound around a plurality of rollers;a universal joint for connecting a rear portion of the base to a rear portion of the platform to enable the platform to tilt relative to the base about a longitudinal axis and a transverse axis;two elevators each including a post supported on a front portion of the base and a carriage movably supported on the post wherein the carriages are independently movable to cause the platform to tilt relative to the base about a longitudinal axis and a transverse axis; andtwo telescopic elements each including an end connected to a front portion of the platform and another end connected to the carriage of a corresponding one of the elevators. 2. The treadmill according to claim 1, wherein each of the elevators includes a motor for driving the carriage. 3. The treadmill according to claim 2, wherein each of the elevators includes: a nut connected to the carriage; anda threaded rod engaged with the nut and connected to the motor. 4. The treadmill according to claim 3, wherein the carriage is formed with a receptacle for receiving the nut. 5. The treadmill according to claim 1, including two auxiliary joints each for connecting the carriage of a corresponding one of the elevators to a corresponding one of the telescopic elements. 6. The treadmill according to claim 5, wherein the carriage of each of the elevators is formed with two lugs for sandwiching the corresponding auxiliary joint. 7. The treadmill according to claim 6, wherein each of the auxiliary joints includes: an external ring connected to the corresponding telescopic element;an internal ring rotationally placed in the external ring; anda screw for connecting the internal ring to the lugs. 8. The treadmill according to claim 7, wherein the external ring includes a concave internal face and the internal ring includes a convex external face in smooth contact with the concave internal face of the external ring. 9. The treadmill according to claim 8, wherein the concave internal face of the external ring and the convex external face of the internal ring are in the form of part of a spherical face. 10. The treadmill according to claim 7, wherein each of the auxiliary joints includes an insert formed on the external ring and connected to the corresponding telescopic element.