Wiggers, T. (Thijs) (2019) Towards determination of biomechanical load in soccer: the use of a multiple inertial measurement unit set-up. thesis, Sport Sciences.
Full text available on request.Abstract
Introduction: Training load in soccer is often subdivided into external and internal load, but could also be subdivided into biomechanical and physiological load constructs. Recent technological developments of micro sensor technology in sports could possibly improve the determination of biomechanical load, not only on the whole body, but also on the lower extremity. Therefore, the aim of the study was to determine biomechanical load on the lower extremity using a multiple Inertial Measurement Unit (IMU) set-up during soccer-specific movements and to compare the results with commonly used load parameters. Stronger relationships were expected between parameters within the same load construct, while weaker relationships were expected between parameters within different load constructs. Methods: 11 participants executed a 30-m sprint and the agility t-test, while wearing IMUs on lower back, thighs and shanks as well as a Local Position Measurement (LPM) vest around their chest. Data from IMUs was used to calculate external and internal biomechanical load parameters, while LPM and Rating of Perceived Exertion (RPE) were used to determine commonly used load parameters. First, relationship between IMU parameters and commonly used parameters was assessed with Pearson correlation. Furthermore, Principal Component Analysis (PCA) was executed to assess if distinction between different training load constructs could be made out of IMU parameters and commonly used parameters. Results: Although seven large to very large relationships (r = between .62 and .78, p < .05) were found between IMU parameters and commonly used parameters, most parameters were not related to each other during both tests. Assessing PCA to distinct the different load constructs out of the IMU parameters and commonly used parameters explained between 62.78% and 81.97% variance. While most parameters loaded on the expected component, maximal elongation (velocity) of the semimembranosus and acceleration parameters of LPM loaded on another component than expected, or no component at all. Conclusion: The use of a multiple IMU set-up could give additional information on training load compared to commonly used load parameters, during soccer specific movements. Parameters could be classified in different types of load, not only external and internal but also biomechanical and physiological. However, it is likely that parameters reflect more than one load construct and that load constructs are to some extent related to each other. This multiple IMU set-up may have the potential to determine biomechanical load on the lower extremity in soccer. Keywords: training load, biomechanical phenomena, mechanical stress, accelerometry, kinematics, kinetics, sports
| Item Type: | Thesis (UNSPECIFIED) |
|---|---|
| Supervisor name: | Brink, dr. M.S. and Vegter, dr. R.J.K. and Bastiaansen, B.J.C. and Goedhart, drs. E. |
| Faculty: | Medical Sciences |
| Date Deposited: | 20 May 2022 11:47 |
| Last Modified: | 20 May 2022 11:47 |
| URI: | https://umcg.studenttheses.ub.rug.nl/id/eprint/3390 |
Actions (login required)
 |
View Item |