Global Analysis of COP Excursion for Stabilometry Assessment of Impulse Phase on Standard Maximum Vertical Jump

• Type: Article in International Conference Proceedings Book
• Date: 2023

Authors

Rodrigues, C (Author) Other; Correia, M. V. (Author) FEUP; Abrantes, J (Author) Other; Rodrigues, M (Author) Other; Nadal, J (Author) Other

Conference proceedings International

Title: Lecture Notes in Bioengineering

Pages: 433-444

10th Congress of the Portuguese Society of Biomechanics, CNB 2023

Figueira da Foz, 5 May 2023 through 6 May 2023

Indexing

Scopus - 0 Citations

Other information

Authenticus ID: P-010-1SN

DOI: 10.1007/978-3-031-47790-4_42

Abstract (EN): This study presents and applies global metrics for the analysis of the center of pressure (COP) excursion during impulse phases at different standard maximum vertical jump (MVJ) with long, short and no countermovement (CM) at countermovement jump (CMJ), drop jump (DJ) and squat jump (SJ) expanding COP analysis from static to dynamic condition of CM in association with lower limb muscle stretch¿shortening cycle (SSC) and complementing previous studies on time structural analysis of COP excursion during impulse phase at standard MVJ. Whereas literature is abundant on COP excursion at gait, run and orthostatic standing position, there is a lack of studies on COP analysis at standard MVJ with an open issue on its contribution to long, short and no CM performance. Fifty-four trial tests were assessed with the selection of the best CMJ, DJ and SJ for each subject based on vertical flight height hflight. During trial tests ground reaction forces (GRF) and force moments were acquired and the COP coordinates were computed during the impulse phases. COP stabilograms and statokinesigrams were plotted and global metrics were computed namely the COPxA antero-posterior and COPyA mediolateral amplitudes of COP excursion, mean radial distance R, the length L of the path and the average velocity v during COP excursion. Statistical significative differences were detected at 5% significance, with higher mean COPxA than COPyA and higher mean COP global metrics at CMJ than SJ both higher than DJ, with DJ higher velocity of COP excursion than CMJ both higher than SJ. Global correlational analysis presented a positive linear association of COP metrics with hflight whereas at segmented MVJ this association wasn¿t detected, thus rejecting the negative impact of larger COP excursion on MVJ performance. © The Author(s), under exclusive license to Springer Nature Switzerland AG 2023.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 11