COUNTERMOVEMENT JUMP VARIABLES AND ESTIMATED PEAK POWER IN FEMALE CHILDREN WITH DYNAMIC KNEE VALGUS

Authors

Mahdis Dadfar, University of Allameh Tabataba'iFollow
Mehrshad Alipour, Amirkabir University of Technology, Tehran, IranFollow
Rahman Sheikhhoseini, Allameh Tabataba’I University, Tehran, IranFollow

Category

Modelling / Simulation

Document Type

Paper

Abstract

The purpose of the current study was to evaluate countermovement jump biomechanical variables and to estimate peak power using different approaches in female children with dynamic knee valgus. Twenty-six female children, aged 10-14, with dynamic knee valgus were recruited. A Kistler force plate was used to record the kinetic data during three CMJ trials. Less peak power (estimated using allometric method) and greater landing force during countermovement jump were significantly correlated with valgus angle in female children (P= 0.033, R= -0.419, and P= 0.0.43, R= 0.413, respectively). Estimated peak power results using Sayers and Harman methods were significantly different from actual peak power outcomes (P=0.042, P=0.027 respectively). Greater landing force and decreased peak power during CMJ showed to be correlated with increased valgus angle in female children. Additionally, the allometric method seemed to be more accurate for estimating peak power compared to other methods.

Recommended Citation

Dadfar, Mahdis; Alipour, Mehrshad; and Sheikhhoseini, Rahman (2021) "COUNTERMOVEMENT JUMP VARIABLES AND ESTIMATED PEAK POWER IN FEMALE CHILDREN WITH DYNAMIC KNEE VALGUS," ISBS Proceedings Archive: Vol. 39: Iss. 1, Article 71.
Available at: https://commons.nmu.edu/isbs/vol39/iss1/71