EFFECT OF AGE ON HIGH JUMP TAKEOFF BIOMECHANICS

  • Javier Bermejo
  • José Manuel Palao
  • José L. L. Elvira
Keywords: athletics, kinematics, photogrammetry, sports technique

Abstract

The aim of the study was to analyse the differences in critical features of high jump take-off in different ages. 3D photogrammetry was used to analyse the best jump of the participants of 3 Spanish Indoor Championships (2009) (13-15 y, 17-18 y, and 18-34 y). The variables measured were horizontal velocity of the centre of mass (CM) at touchdown (VH0), knee angle at touchdown (K0), leg angle at touchdown (L0); height of the CM at touchdown (H0); and take-off angle (TOA). The three groups were compared with ANOVA and each variable was correlated with the maximum CM height. Statistical differences were found in VH0 and H0, but not in the variables directly related to the take-off technique. It is concluded that younger athletes use similar techniques than older ones. This might be a wrong strategy, as they should adapt it to their maturity limitations.
Section
Coaching and Sports Activities