OptoJump, GymAware and PUSH

In ski racing, jump tests are used to assess performance-determining parameters. In order to obtain precise results, expensive measuring equipment in the laboratory has mainly been relied upon up to now. New, inexpensive, mobile and easy-to-use measuring systems offer the opportunity to determine jump heights in field tests instead of in the laboratory. However, their suitability for performance tests has not yet been sufficiently proven by studiesThis study therefore examined the validity and test-retest reliability of the PUSH and GymAware systems when measuring jump heights in comparison with the OptoJump reference system. In addition, all three systems were tested for their suitability for field tests in ski racing.