A system includes a minimally intrusive display system (MIDS) configured to be disposed on an eyewear. The MIDS includes a display system and a sensor system configured to provide for a sensor data. The MIDS further includes a processor configured to process the sensor data to derive an activity metric. The processor is further configured to display, via the display system, the activity metric, wherein the display system is disposed in the eyewear so that the activity metric is only viewed when a user of the eyewear turns the user's pupil towards the display system at angle α from a forward direction.

The facility includes an artificial wave generator having a water driving member movable along a predetermined path, including a body delimiting a water flow chamber open by an inlet opening located at the front and facing forward and by an outlet opening located rearward of the inlet opening and facing the wave progression zone, the body including peripheral walls which entirely close the chamber from the inlet opening to the outlet opening except optionally at the side that faces upward.

A face device for monitoring biomedical parameters of a user provides a support and housing structure shaped so as to be applied to the head of the user, an oximetry sensor fitted to the support and housing structure so as to adhere, in an operating position, to the face of the user at the facial artery, a sound source fitted to the support and housing structure so as to adhere, in an operating position, to a cranial bone of the user, an independently powered electronic board for processing data, received in the support and housing structure and connected to the oximetry sensor and to the sound source so as to detect and process signals coming from the oximetry sensor and to provide information on biomedical parameters to the user acoustically through the sound source. This face device does not engage or distract the user.

The invention relates to an aquatic game device comprising a structure having two ends which are each fitted with a base module, said structure being sufficiently deformable so as to allow the relative movement of said modules, the density of the modules being designed to allow the immersion of said device in water with the modules arranged such that they stand on a subaquatic surface, and the density of the structure being designed so as to be able to suspend said structure in the water according to at least one game configuration.

An aqua resistance dumbbell comprises a tubular wall that provides a bore for receiving a user's hand from each end of the bell. A rod is located within the bore and extending laterally across the bore to be gripped by a user with one or both hands from one or both ends of the bore. The dumbbell has a plurality of longitudinal fins extend along the tubular wall on an outer side of the tubular wall, and at least one lateral fin that extends laterally at least part way around the tubular wall. An aqua resistance fin assembly comprises two fin components and at least one fastening member for fitting the fin components to a user's limb in a side-by-side configuration around the limb. Each fin component comprises a base adapted to fit against a user's limb and adapted to be secured to the user's limb by the fastening member, and at least two longitudinal fins and at least one lateral fin on an outer side of the base.

An underwater propulsion device is disclosed comprising two sleeves for fitting around each of a user's lower legs, with each sleeve mounting a propulsion unit, and the sleeves being connectable by a bar between them during underwater operation of the device by the user.

The present invention relates to wobbly balls and exercise coil springs. A wobbly ball may include a non-spherical rigid, hollow ball body formed of two halves, each half comprising an upper ladle or a lower ladle which are welded together along a central seam therebetween, and defining a hollow cavity therein. A spherical inner ball is captured within the hollow cavity of the hollow ball body of the wobbly ball, so that upon movement of the wobbly ball, the inner ball rolls within the cavity, producing a wobbly, eccentric motion. The exercise coil spring may be formed of a single coiled wire, the coiled spring including a central portion where the coiled wire is coiled to a first diameter that is constant. Opposed flared ends are provided ends of the central portion where the coiled wire is progressively coiled from the first diameter to a second diameter, which is greater.

A trampoline anchor comprising a trampoline frame, a trampoline bed attached to the trampoline frame, trampoline springs connecting the trampoline frame to the trampoline bed, a fluid chamber formed as a toroidial enclosure, and an outside skirt attached to the fluid chamber, wherein the outside skirt connects between the fluid chamber and the trampoline frame at a fluid chamber skirt connection. The trampoline anchor can also have fluid chamber pods attached to the legs of the trampoline.

Aspects of the present disclosure involve hydraulic systems and methods for altering a flow of a body of water, such as a river, channel, and/or other flowing or uncontained bodies of water. In one aspect, a hydraulic system provides a velocity barrier for the impedance of aquatic organism migration. More particularly, the velocity barrier may be adapted based on the swimming capabilities of one or more aquatic organisms to impede migration. The aquatic organism may be one or more species of fish, such as species sea lamprey (Petromyzon marinus). The example implementations shown and described herein reference the restriction of the sea lamprey. However, it will be appreciated that other aquatic organisms could be restricted by the presently disclosed technology, for example, with different hydraulic targets depending on swimming capabilities.

An exercise apparatus may include a rectangular platform, first and second attachment points, first and second rails and friction reducing runners on the rails. The platform may have an upper face, a lower face, two long edges and two short edges. The first attachment point may be disposed along one of the long edges. The second attachment point may be disposed along the other of the long edges. The first rail may be attached to the lower face of the platform proximal to one of the short edges of the platform. The second rail may be attached to the lower face of the platform proximal to the other of the short edges of the platform. The first and second rails may be spaced apart to define a passageway beneath the apparatus, wherein the passageway is configured to allow the apparatus to pass over a standard sprinter's starting block without contacting any part of the starting block.