A vertical jump system is described herein. The system includes a first member and a second member each having a member base that sits under a flooring, a flexible cord that extends between the first member and the second member at a desired height, fixtures coupled to the flexible cord along the first member and the second member. The flexible cord remains at the desired height when contacted. The fixtures are slidable along the first member and the second member and adjust the height of the flexible cord. This configuration allows a user to easily adjust the height of the vertical jump for training, athletics, and competition, without the cord or system components dislodging and causing injury to the user.

A vertical jump system is described herein. The system includes a first member and a second member each having a member base that sits under a flooring, a flexible cord that extends between the first member and the second member at a desired height, fixtures coupled to the flexible cord along the first member and the second member. The flexible cord remains at the desired height when contacted. The fixtures are slidable along the first member and the second member and adjust the height of the flexible cord. This configuration allows a user to easily adjust the height of the vertical jump for training, athletics, and competition, without the cord or system components dislodging and causing injury to the user.

A sensor mat for accurate timing of athletic jumps, including top and bottom plates which are separated by a cavity. The plates come into contact under the weight of the athlete and activate timing circuitry. Airflow in the cavity is enhanced by passages or vents in the bottom plate to improve response time of the mat.

A sensor mat for accurate timing of athletic jumps, including top and bottom plates which are separated by a cavity. The plates come into contact under the weight of the athlete and activate timing circuitry. Airflow in the cavity is enhanced by passages or vents in the bottom plate to improve response time of the mat.

An airbag system having a base air mattress, a top air mattress, and a plurality of tubular posts positioned between the base air mattress and the top air mattress in a generally vertical orientation so that the top air mattress is supported upon the base air mattress. A plurality of breather holes are provided in either the top air mattress or the base air mattress, wherein each of the tubular posts is sealably mounted around at least one of the plurality of breather holes. The tubular posts all have a common diameter, and the tubular posts are separated from each other by a distance that is greater than the common diameter of the tubular posts.

An airbag system having a base air mattress, a top air mattress, and a plurality of tubular posts positioned between the base air mattress and the top air mattress in a generally vertical orientation so that the top air mattress is supported upon the base air mattress. A plurality of breather holes are provided in either the top air mattress or the base air mattress, wherein each of the tubular posts is sealably mounted around at least one of the plurality of breather holes. The tubular posts all have a common diameter, and the tubular posts are separated from each other by a distance that is greater than the common diameter of the tubular posts.

A cover assembly may include a housing and an elongated cover. The housing defines a chamber therein. The chamber is disposable in the ground adjacent to a side of the sand area of the jump pit. The elongated cover has a first end, a second end, and spaced-apart sides extending from the first end to the second end. The elongated cover is storable in a compacted configuration in the chamber of the housing below the surface of the ground, and the elongated cover is removable from the chamber and extendable in an uncompacted configuration over the sand area of the jump pit to conceal the sand area.

An apparatus and method for agitating and rearranging a grouping of individual cushioning articles in an enclosed container are disclosed. The method and device may protect and individual from an injury resulting from landing in the enclosed container when the individual cushioning articles are overly compressed and lack appropriate spacing in order to absorb the kinetic energy of an individual landing in the enclosed container. The apparatus may include an air actuated inflatable bladder with inflatable extensions that may be utilized to lift and/or separate the cushioning articles, thus allowing the cushioning articles to be repositioned in a random, non-uniform, fashion. Such an arrangement may facilitate training for exercises wherein a skill cushion and/or semi-solid surface is used to practice landings. Training routines may utilize a skirt attachment or landing mat to simulate landing on ground.

An apparatus and method for agitating and rearranging a grouping of individual cushioning articles in an enclosed container are disclosed. The method and device may protect and individual from an injury resulting from landing in the enclosed container when the individual cushioning articles are overly compressed and lack appropriate spacing in order to absorb the kinetic energy of an individual landing in the enclosed container. The apparatus may include an air actuated inflatable bladder with inflatable extensions that may be utilized to lift and/or separate the cushioning articles, thus allowing the cushioning articles to be repositioned in a random, non-uniform, fashion. Such an arrangement may facilitate training for exercises wherein a skill cushion and/or semi-solid surface is used to practice landings. Training routines may utilize a skirt attachment or landing mat to simulate landing on ground.

Videography of surfaces and improved positional control of unmanned aerial vehicles (UAV) are disclosed. Embodiments include a panning piloting scenario. The panning can include control parameters relative to a normal vector to a point P of a plane representing a surface, or relative to a direction of gravity and attributes of the surface. For example, the UAV can be programmed, or controlled, to pan about the point on the plane maintaining a certain distance therefrom while rotating about angles to the normal vector. Methods of estimating a surface include determining a plane including three non-collinear points of the surface. The plane determined can be relative to the direction of gravity, such as vertically parallel to gravity. A piloting routine can include piloting a UAV to various angles relative to the vector normal to the plane and distances to the location on the surface and/or point on the plane.