The invention relates to a turning plate for measuring the pushing-off forces of swimmers in a swimming pool when turning and includes force sensors for determining the pushing-off forces and a stiff plate, which can be secured in a stable position parallel to the pool wall. The turning plate has a stiff rectangular frame on which the stiff plate is secured with pre-tensioning by a clamping screw at four locations, in each case over a force sensor. Moreover, next to each of these force sensors, an adjusting pin is arranged on the frame and can be driven out from the frame in order to support the frame on the pool wall. The frame has at least one, preferably two stiff securing brackets for mounting it on the pool edge, preferably on a starting block.

Disclosed is a swimming assistance apparatus, which is worn on a user's both feet to provide the user with buoyancy, such that the user can float on water and swim in a good swimming style while repeatedly moving the waist from side to side like a fish, thereby reinforcing the user's waist muscles. Persons who have knee joint arthralgia or backache or persons who have disability in the lower body can use the swimming assistance apparatus for medical purposes, such as pain relief or treatment.

[Problem] To provide a foldable frame structure, unfoldable into a 2N-sided polygonal shape (N being an integer equal to or larger than 2), achieving a securely and rigidly supported unfolded state and a compact folded state. [Solving means] 2N upper rods (210), with an equal length, are coupled to each other to define a planer 2N-sided polygonal shape. First coupling means (220) coupling two adjacent upper rod (210) at a corresponding one of apices of the 2N-sided polygonal shape, and holding the two upper rod (210) in such a manner that the upper rod (210) are rotatable about an orthogonal axis orthogonal to axes of both of the two rods and rotation means (240) that enable each of the upper rods (210) to rotate about the axis (AX1) are provided. Folding to be a columnar shape as a whole can be achieved with the upper rods (210) pivoted about the orthogonal axis (AX2) to minimize an angle between two adjacent upper rods (210) while the upper rods (210) are rotated about the axis (AX1).

A method for monitoring a swimming state by using a wearable device and a wearable device are provided. The method includes: providing a swimming mode in the wearable device, and storing standard swimming stroke data that have been collected in advance as corresponding template data, when a monitoring process starts, activating the swimming mode according to an instruction given by a user who will immediately enter water, and after the swimming mode has been activated, controlling a sensor to collect swimming stroke data of the user; obtaining test data for identifying a swimming state of the user from the swimming stroke data; and matching the test data with each template data, and when the test data that are successfully matched the template data exist, identifying the swimming state of the user to be the swimming state that corresponds to the template data associated with the test data that are successfully matched.

The apparatus includes a light emitting pace rope positioned under water that shows where the swimmer should be to move at a selected pace. The LED rope includes a ribbon cable with ground, power and control wires. Equally space LEDs are attached to the ground and power wires along the cable. The cable and LEDs are received in a transparent plastic tube couplers are attached to the cable ends. The plastic tube is encased in transparent silicone. Ends of the LED rope are attached opposite pool end walls. A power supply is connected to a coupler. A micro-controller provided signals to the control wire which provides additional power to illuminate the LEDs one at a time at the selected pace. Additional LEDs are provided to continue the pace in the opposite direction.

A water floating device that offers support for the head or neck of a user when swimming or practicing water exercises. The floating support device includes a unitary piece body made of a floating and waterproof material. The unitary piece body has a U-shape including a curved central section having a first leg on a first end and a second leg on a second end. The first leg and the second leg project from the curved central section. The first leg and the second leg angle inwardly to one another.

An aqua-resistance exercise device includes an elongate member, a strap, fasteners, and one or more fins. The elongate member includes an engagement portion, a shaft extending from the engagement portion, and a handle to be gripped by a user. The fasteners are provided to the engagement portion of the elongate member and an inner side of the strap to releasably attach the strap to the engagement portion of the elongate member. The one or more fins are adapted to be received on the strap, and the fasteners releasably secure the strap to the engagement portion of the elongate member to thereby releasably secure the fins to the elongate member.

A frame apparatus for use in a body of water, comprising a deformable frame, a substantially solid buoyancy member arranged to substantially float in water, and a tether connected to the buoyancy member, the tether having an adjustable length, the tether arranged to be removably connected to the deformable frame. A game apparatus for use underwater comprising the frame apparatus and further comprising at least one secondary deformable frame arranged to be removably attached to the deformable frame, a pair of containers each having a tether with an adjustable length, where the tethers are arranged to be removably connected to at least one of the aforementioned deformable frames. A corresponding method of playing an underwater game using the game apparatus is also disclosed.

A disclosed facility includes a wave generator, a support including an edge zone, a culminating zone, a progression zone sloping upwardly between the edge and culminating zones, a crest between the culminating zone and a depressed zone depressed relative to the crest, water situated over the edge and progression zones, forming part of an aquatic environment including horizontally contiguous upper and deep regions which are respectively higher than and lower than the edge zone, and an inner zone over the edge and progression zones and which is vertically contiguous with the upper region; the facility being configured such that the water at end of travel of the waves gets past the crest and falls into a reception volume delimited by the depressed zone when the generator is in use; and a fluidic communication below the support linking the deep region to an opening that is open to the reception volume.

A swimming flipper (1) comprising a foot portion (2) and substantially flat blade portion (3) extending there from, said blade portion (3) having provided on each longitudinal side thereof at least two opposed rails (4/5) extending inwardly and at an angle equal to or less than 90 degrees to the plane of said blade portion (3), and said blade portion (3) having provided at least two ridges (7/8) preferably underneath the blade portion (3) extending longitudinally from the foot portion (2), said foot portion (2) having provided a one-piece strap (6), and said foot portion (2) having provided at least two fixed couplings (11/12) to engage and disengage with the corresponding and opposing couplings of another said flipper portion (1) to interlock and hold two flippers attached to each other.