Abstract: A performance monitoring system and method for edging or near-edging sports includes a pair of measurement apparatus associated with each foot or of an athlete. Each measurement apparatus includes at least one sensor, adapted to cooperate with the corresponding foot or boot and the corresponding surface-engaging equipment to measure and provide at least force data exerted on said surface-engaging equipment. A data receiver cooperates with each sensor to receive said data and to communicate said data to a data processor. The data processor is adapted to determine from said data, for each sensor, at least the following derived characteristics: force over time, a peak force, delta time, and corresponding explosiveness. Feedback of the characteristics is provided to a user.

Abstract: A pocket sized plastic restraint, having a rigid edge (1a) and flexible center (1b). In the flexible center (1b) is a flexible gripping strip opening (2d) that gathered excess liner material is inserted through and held tight by. The gripping strip opening (2d) is a serrated opening that bites into the gathered liner like teeth, to hold the bag tight without cutting it. At the base of the garbage bag restraint (2c) is a tucking strip opening (2e) for tucking excess bag material. The garbage bag restraint (2c) holds bags tight around the rim of containers that are smaller than the bag.