Abstract: A valve actuation system comprises a first arm having a first arm contact surface and operatively connected to a valve actuation motion. A second arm having a second arm contact surface is operatively connected to the at least one engine valve. A discrete lost motion device is provided that is controllable between a first, motion conveying state and a second, motion absorbing state. The discrete lost motion devices comprises a plunger contact surface and a housing contact surface. The housing contact surface is configured to engage one of the first or second arm contact surfaces, and the plunger contact surface is configured to engage another of the first and the second arm contact surfaces. The first and second arm contact surfaces, the housing contact surface and the first plunger contact surface are configured to support the discrete lost motion device between the first arm and the second arm.

Abstract: Interactive sports simulation system for providing an actual physical trial of the sports performance to be enacted. The system includes audiovisual means for simulating an actual competitive sports environment, sensors for measuring the sports performance and physiological performance of an athlete being tested, and computer means responsive to the performance data from the sensors for controlling the simulated sports environment created by the audiovisual means. The system facilitates psychological conditioning of the athlete through psychophysiological manipulation of the environment by the athlete.