An aquatic exercise apparatus for applying a resistive force to an exercising swimmer, the apparatus includes a bracket mounted to a vertically oriented surface located above a pool of water, a container, an operational assembly comprising at least one upper pulley attached to the bracket and at least one lower pulley attached to the container, a cord passing through the at least one upper pulley and the at least one lower pulley, and a fastener configured to attach to an animal, where the fastener is attached to a free end of the cord, and where pulling the free end of the cord moves the container upward against gravity.

A diving pool includes a first tiered section extending to a first depth of the diving pool, a second tiered section extending to a second depth of the diving pool that is deeper than the first depth, and a cover. The cover can be releasably positioned within the diving pool at a depth of the diving pool to isolate a shallower portion of the diving pool above the cover at the depth from a deeper portion of the diving pool below the cover at the depth.

A diving pool includes a first tiered section extending to a first depth of the diving pool, a second tiered section extending to a second depth of the diving pool that is deeper than the first depth, and a cover. The cover can be releasably positioned within the diving pool at a depth of the diving pool to isolate a shallower portion of the diving pool above the cover at the depth from a deeper portion of the diving pool below the cover at the depth.

The present device is designed for training of highly-qualified athletes in cyclic sports. The technical result is the more reliable transfer of power from a drive to a working mechanism with the possibility of smoothing out ultrashort fluctuations (0.3-0.7 seconds) in force. The athlete training device comprises two bases, each having a pulley attached thereto for rotation in a single plane. An annular cable track is fastened between the pulleys. With the aid of a motor, a rotation rate is transmitted to one of the pulleys via a shaft. The shaft, which consists of a driving part and a driven part, has mounted thereon an adjustable transmission for controlling torque. The adjustable transmission is in the form of an electromagnetic powder clutch, consisting of a driving part, connected to the driving part of the shaft, and a driven part, connected to the driven part of the shaft. The driven part of the clutch is mounted with clearance in a coaxial cavity in the driving part, the clearance gap between the driving part and the driven part of the clutch containing a ferromagnetic powder having viscosity adjusted by a clutch controller.

The present device is designed for training of highly-qualified athletes in cyclic sports. The technical result is the more reliable transfer of power from a drive to a working mechanism with the possibility of smoothing out ultrashort fluctuations (0.3-0.7 seconds) in force. The athlete training device comprises two bases, each having a pulley attached thereto for rotation in a single plane. An annular cable track is fastened between the pulleys. With the aid of a motor, a rotation rate is transmitted to one of the pulleys via a shaft. The shaft, which consists of a driving part and a driven part, has mounted thereon an adjustable transmission for controlling torque. The adjustable transmission is in the form of an electromagnetic powder clutch, consisting of a driving part, connected to the driving part of the shaft, and a driven part, connected to the driven part of the shaft. The driven part of the clutch is mounted with clearance in a coaxial cavity in the driving part, the clearance gap between the driving part and the driven part of the clutch containing a ferromagnetic powder having viscosity adjusted by a clutch controller.

Disclosed is a water flow control device for swimming training that includes a swimming training device and a main water inlet pipe and a main water outlet pipe. The swimming training device includes at least a swimming pump. The main water inlet pipe and the main water outlet pipe are connected with the swimming pump. The water inlet of the main water inlet pipe is communicated with a swimming pool and a water outlet of the main water outlet pipe is connected with a jet nozzle. A filter device includes at least a filter pump, a filter sterilization device. A filter water inlet pipe and a filter water outlet pipe are connected with the filter pump. The filter water inlet pipe is communicated with the swimming pool through the filter sterilization device and the filter water outlet pipe communicated with the main water inlet pipe.

An electronic apparatus includes a processor that outputs information regarding a difference between left and right strokes in swimming on the basis of data which is output from a sensor mounted on the body of a user during swimming.

An electronic apparatus includes a processor that outputs information regarding a difference between left and right strokes in swimming on the basis of data which is output from a sensor mounted on the body of a user during swimming.

The present invention relates to an immersible, adjustable, surface compliant device and methods of using it an environment with variable, induced current flows for purposes of exercise, rehabilitation, or pure fun. The adjustable, immersible, surface compliant device can be used in pools, water tanks, or any body of water having a location where the device could be attached. The adjustable, immersible, surface compliant device and methods of using it are ideal for rehabilitating an injury, assisting aging bodies in performing exercises, and allowing the permanently injured to achieve movement and some degrees of physical autonomy despite being injured. In some embodiments, I disclose a trampoline-like device, having adjustable surface compliance, to be used in a pool or water tank having a current flow, wherein the angle of the trampoline is horizontally adjustable.

A wave making apparatus for use with a wave pool having water is disclosed. The apparatus includes a wave making chamber having an interior and a plurality of chamber walls. The chamber also has a passageway connecting the interior to the wave pool and constructed to allow water to flow there-between. A water vane is disposed of in or adjacent to the passageway. The wave vane includes at least one smooth and curved water vane wall, which, in combination with the plurality of chamber walls, creates at least two conduit paths for the water flowing between the interior and the wave pool. The conduit paths have two ends, and the water enters one end in a first direction and exits the second end in a second direction.