The purpose of this study was to develop a test protocol and produce normative data for measuring abdominal muscular endurance in professional ice hockey players. The protocol was developed using elite speed skaters and professional ice hockey players. The test involves the measurement of total number of curl-ups that can be completed at a prescribed rate of 25 repetitions per minute. The test protocol maximizes the isolation of the abdominal muscle group and the control of the movement. Normative data is presented from tests on 11 7 professional hockey players. This protocol provides discriminatory power and has high face validity in its application.J Orthop Sports Phys Ther 1984;6(1):30-33.

No abstract

Critical high-pressure sealing joints on the space shuttle reusable solid rocket motor require pre- This will reduce torque related discrepancies that do not impact preload while continuing the excellent preload performance of AOT.

No abstract

No abstract