A trampoline assembly (10) includes a bed (12), a base frame (14), a plurality of first resilient members (16) that connect the bed (12) to the base frame (14), and a support assembly (22). The support assembly (22) includes (i) a plurality of support arches (26) connected to the base frame (14) and cantilevering upward away from the base frame (14); (ii) a first support segment (28) that is connected to the base frame (14) and one of the support arches (26); (iii) a second support segment (30) that is connected to the base frame (14) and one of the support arches (26); (iv) a support bar (32); and (v) a plurality of support resilient members (34) that connect the support bar (32) to at least one of the plurality of support arches (26). In some embodiments, the plurality of support arches (26) extend around only a portion of the base frame (14). Further, each support arch (26) can be connected to at least one of the other support arches (26). Additionally, in some embodiments, the support bar (32) has a first end (48) and a spaced apart second end (50). For example, in some embodiments the support bar (32) is substantially C-shaped.

A system for measuring the distance and trajectories travelled by bodies in flight during sports events such as athletics, said bodies executing trajectories having a common predetermined take-off area (13), and a landing point (29) variable within a landing surface (2A, 3A, 4A, 5A), said system comprising fixed means (11, 11A, 11B, 11C) for acquiring the image of the landing surface (2A, 3A, 4A, 5A) and positioned at a predetermined distance from the take-off area (13), means (16, 16A, 16B, 16C) for recording this image at least from the moment of initiation of the flight to its completion, means (39) for identifying the landing point (29A) of the body within the landing surface (2A, 3A, 4A, 5A), and means (24) for evaluating the distance of said landing point from the take-off area (13), which measure the distance travelled by the body in flight immediately after flight completion and display the result of said measurement on display means.

Gegenstand der Erfindung ist eine auf einen Untergrund auflegbare oder montierbare Sportunterlage (1), z. B. ein Sprungtisch oder ein Sportboden, wobei die Sportunterlage (1) mindestens eine Platte (30) umfasst, wobei die mindestens eine Platte (30) federnd nachgiebig auf einem Träger (5) gelagert ist, wobei die mindestens eine Platte (30) einen plattenförmigen Obergurt (30a) und einen beabstandet dazu darunter befindlichen Untergurt (30b) aufweist, wobei Ober- und Untergurt (30a, 30b) durch mindestens einen Abstandshalter (7) verbunden sind.

An athletic appliance (1) and a cover for an athletic appliance (1), the athletic appliance (1) including a core of a shock-absorbing material surrounded by the cover. The cover includes a top (2), a bottom (3) and one or more side sections (4a-4d), and means (8) for fastening the cover around the core. At least one of the parts (2, 3, 4a-4d) of the cover is removable as the top (2), the bottom (3) and/or one or more of the side sections (4a-4d) is/are provided with fastening means (8) along its circumference for releasable fastening to corresponding fastening means (8) on the remaining part of the cover.

Hereby it is avoided to replace the entire cover, e.g. due to wear or damage, as one, several or all sides of the cover can readily be replaced without using tools.

The present invention concerns a gymnastic accessory including a twisting ring with an external ring and an internal ring, wherein the two rings are concentrically connected and rotatable in relation to each other about a common axis, wherein the external ring typically includes two connecting devices that are arranged symmetrically at the outer periphery and adapted for joining with an unyielding or elastic rope. The second ring include connecting means at the periphery, the connecting means adapted for mounting of connecting elements for a twisting belt. The invention further concerns a method for reconfiguring such a gymnastic accessory. The new feature of the gymnastic accessory according to the invention is that the twisting ring further include a number of the connecting elements in the form of straps, wherein one or more and preferably all the straps are arranged with joining means for joining with complementary joining means either on the strap itself, on the second ring or on a twisting belt, wherein the straps and/or the joining means further include adjusting means for adjusting the length of the straps and thereby of the spacing between the twisting belt and the second ring of the twisting ring.

A measuring device comprises cameras for imaging a person performing a movement from at least two different directions so as to provide image data. An image-processing unit measures the image data for values of predetermined parameters representing motion so as to provide measurement data. The image-processing unit presents the performance in relation to other performances.