A New Contact Mat Wireless System for Estimating Vertical Jump Height

Abstract Among the different devices available for the assessment of the vertical jump height based on the flight time measurement, the contact mats are surely one of the simplest and portable systems and, for this reason, they are more widely used. This paper deals with the comparative evaluation of the performances of a new contact mat system with respect to a force platform. Some tests have been performed and the relative comparative results will be presented. The study shows a significant concurrent validity of Wi-JumpLe system for the flight and ground contact time measurements. In conclusion, the new contact mat structure together with the electronic measurement system is legitimate to assess vertical jump height and leg extensors muscle power.

[1]  M. Cardinale,et al.  Reliability and Factorial Validity of Squat and Countermovement Jump Tests , 2004, Journal of strength and conditioning research.

[2]  Peter N. Frykman,et al.  Estimation of Human Power Output from Vertical Jump , 1991 .

[3]  J. Folland,et al.  Validity of vertical jump measurement devices , 2012, Journal of sports sciences.

[4]  N C Heglund,et al.  Storage and release of mechanical energy by active muscle: a non-elastic mechanism? , 1985, The Journal of experimental biology.

[5]  Laurent Bosquet,et al.  A Comparison of 2 Optical Timing Systems Designed to Measure Flight Time and Contact Time During Jumping and Hopping , 2009, Journal of strength and conditioning research.

[6]  David G. Behm,et al.  Effects of running, static stretching and practice jumps on explosive force production and jumping performance. , 2003, The Journal of sports medicine and physical fitness.

[7]  Franco M Impellizzeri,et al.  Validity and Reliability of Optojump Photoelectric Cells for Estimating Vertical Jump Height , 2011, Journal of strength and conditioning research.

[8]  Bernardo Innocenti,et al.  Analysis of biomechanical quantities during a squat jump: evaluation of a performance index. , 2006, Journal of strength and conditioning research.

[9]  Luis Fdo. Aragón.  Evaluation of Four Vertical Jump Tests: Methodology, Reliability, Validity, and Accuracy , 2000 .

[10]  Paavo V. Komi,et al.  A simple method for measurement of mechanical power in jumping , 2004, European Journal of Applied Physiology and Occupational Physiology.