TESTING THE RELIABILITY AND VALIDITY OF THE XOS MOTION CAPTURE SYSTEM AT MEASURING COUNTER MOVEMENT VERTICAL JUMP

  • Suzanne Konz
  • David Cottrill
Keywords: CMVJ, MEASUREMENT, INSTRUMENTATION, RELIABILITY

Abstract

The purpose of this study is to conduct simultaneous measurement of CMVJH using the XOS motion capture system and the Vertec system. Ten participants (body height: 170.17 cm ± 13.4, body weight: 79.76 kg ± 17.72) from the Marshall University student body comprised the testing group. Participants were instructed on proper CMVJ technique. Five practice jumps at 50% effort were conducted. Participants donned a compression suit with reflective markers. The paired t-tests indicated that a difference existed in CMVJ height measured between the Vertec and the XOS VJ was (p= .000), SEM of 1.4 with a .823 correlation and the Vertec and the XOS COG was also (p= .000), SEM of 1.42 with a correlation of .788. A marked difference exists between the XOS SportMotion capture system’s methods of measuring CMVJ height when compared to Vertec measurement.
Published
2014-10-03
Section
Equipment / Instrumentation