TY - JOUR
T1 - Application of the principal component waveform analysis to identify improvements in vertical jump performance
AU - Floría, Pablo
AU - Sánchez-Sixto, Alberto
AU - Harrison, Andrew J.
N1 - Publisher Copyright:
© 2018, © 2018 Informa UK Limited, trading as Taylor & Francis Group.
PY - 2019/2/16
Y1 - 2019/2/16
N2 - The purpose of this study was to determine the effects of training on the force-, velocity-, and displacement-time curves using principal component analysis (PCA) to examine the pre to post intervention changes. Thirty-four trained women basketball players were randomly divided into training and control groups. The training intervention consisted of full squats combined with repeated jumps. The effects of the intervention were analysed before and after the training period of 6 weeks by comparing the principal component scores. The magnitude of differences within-/between-group were calculated and expressed as standardised differences. After the intervention period, clear changes in principal components were observed in the training group compared to the control group. These were related to the execution of a vertical jump with a faster and deeper countermovement that was stopped with greater force. This resulted in greater force from the start of the upward movement phase which was maintained for a longer time. This increase in force throughout a greater range of motion increased the take-off velocity and consequently jumping height.
AB - The purpose of this study was to determine the effects of training on the force-, velocity-, and displacement-time curves using principal component analysis (PCA) to examine the pre to post intervention changes. Thirty-four trained women basketball players were randomly divided into training and control groups. The training intervention consisted of full squats combined with repeated jumps. The effects of the intervention were analysed before and after the training period of 6 weeks by comparing the principal component scores. The magnitude of differences within-/between-group were calculated and expressed as standardised differences. After the intervention period, clear changes in principal components were observed in the training group compared to the control group. These were related to the execution of a vertical jump with a faster and deeper countermovement that was stopped with greater force. This resulted in greater force from the start of the upward movement phase which was maintained for a longer time. This increase in force throughout a greater range of motion increased the take-off velocity and consequently jumping height.
KW - evaluation
KW - Ground reaction forces
KW - training
UR - http://www.scopus.com/inward/record.url?scp=85050946860&partnerID=8YFLogxK
U2 - 10.1080/02640414.2018.1504602
DO - 10.1080/02640414.2018.1504602
M3 - Article
C2 - 30058950
AN - SCOPUS:85050946860
SN - 0264-0414
VL - 37
SP - 370
EP - 377
JO - Journal of Sports Sciences
JF - Journal of Sports Sciences
IS - 4
ER -