A board paddling training apparatus for assisting in improving a user's paddling technique and strength. In particular, the board paddling training apparatus includes a buoyant board, such as a board adapted for surfing, bodyboarding, paddleboarding, or other board-related sport that entails paddling, and includes a resistance mechanism that creates drag or resistance against a user's paddle stroke. Some implementations of the resistance mechanism can be adjustable in order to create a variety of resistance against the user's paddle stroke and board movement.

An apparatus for receiving one or more activity attachments including a deck having one or more openings along a long axis of the deck and between the top surface and the bottom surface of the deck. Each of the one or more openings having a circular aperture for receiving an accessory of a set of accessories. Each accessory of the set of accessories providing an activity for a user of the activity. Each accessory having an attachment platform configured to attach the accessory to the board. The attachment platform having a locking mechanism to engaging with a complementary locking mechanism of the board.

An exercise device includes a relatively rigid platform supported by a compressible base. The base has a central flat and then slopes outward and upward from the central flat in a spherical section. The base permits instability in height, angle, and shear strain movement. The user performs postures and/or exercises using the exercise device under each appendage being used for support. The instability triggers the Golgi tendon receptor and the muscle spindle receptor and thereby achieves physiological benefits. The muscular training devices come in different sizes and configurations to make up a muscular training system.

Versatile exercise apparatus is portable and provides adjustable volume to weight ratio for multi-purpose weight, cardio, sport-specific, and martial arts training. Versatile exercise apparatus provides a user with the ability to adjust volume to weight ratio using a waterproof fillable cavity. The different markings on the transparent viewing window of the apparatus allow a user to vary the difficulty level of workouts by changing the corresponding weight of either water or sand added to the apparatus. Versatility is provided by the apparatus either being used as a backpack or a hand-held free weight, or a punching bag.

An athletic training belt including: a first part comprising a radially internal and radially constrictable waist belt; a second part connected to the first part, the second part being a radially external and circumferentially rigid annular frame, wherein the annular frame includes an annular track, a mechanical connector that slidably moves about the track, and an aperture for connecting with athletic training equipment; wherein the annular frame comprises frame portions that move relative to each other, wherein the training belt is reversibly closable to form an annular loop; and a third part fixedly connected to a radially internal surface of the annular frame, wherein the third part flexibly connects the waist belt to the annular frame.

A device for performing blood flow restriction training during the day, integrated with a garment, and controllable to apply a desired compression level to a range of muscles with the intent on improving the health and fitness of a user doing normal daily activities.

An apparatus for receiving one or more activity attachments including a deck having one or more openings along a long axis of the deck and between the top surface and the bottom surface of the deck. Each of the one or more openings having a circular aperture for receiving an accessory of a set of accessories. Each accessory of the set of accessories providing an activity for a user of the activity. Each accessory having an attachment platform configured to attach the accessory to the board. The attachment platform having a locking mechanism to engaging with a complementary locking mechanism of the board.

A floatation device is provided. In some embodiments, a floatation device is provided, comprising an inflatable ring composed of a transparent material, wherein the inflatable ring includes: an outer air chamber having a first valve for inflating the outer air chamber; an inner air chamber having a second valve for inflating the inner air chamber, wherein the outer air chamber and the inner air chamber are not in communication; a cut through the outer air chamber and the inner air chamber of the inflatable ring that forms opposing ends of the inflatable ring; and a plurality of fasteners placed on a top surface and a bottom surface of the outer or inner air chamber for detachably connecting the opposing ends of the inflatable ring.

A convertible tiered game system comprising a plurality of tiered platforms, each tiered platform having at least one of a width and a length that is greater than any higher tiered platform, a plurality of tiered overlays configured to be seated upon each tiered platform among the plurality of tiered platforms, at least three of the tiered overlays comprising a center opening and having at least one of a width and a length that is greater than any higher tiered overlay, and a plurality of beverage container placement markers located on at least one of a tiered platform and a tiered overlay. The system may further comprise a lowest tiered overlay configured to rest on a same surface as the lowest tiered platform. The tiered overlays may comprise a lip extending downward along a vertical side wall of a tiered platform on which the tiered overlay is seated.

The present application discloses a swimming stroke adjusting device, a swimming stroke information processing system and a swimming stroke information processing method. The swimming stroke adjusting device includes an acquiring device configured to acquire swimming stroke information of limb positions to be detected of a user; and a prompt information. determination processor configured to determine, according to the swimming stroke information, prompt information for prompting the user to adjust swimming strokes.