Frik, M. (Mathijs) (2014) Determination of energy expenditure and physical load in soccer: a new energetic model compared with traditional match analysis. thesis, Human Movement Sciences.
Full text available on request.Abstract
Methods for analyzing the physical load of soccer matches are centered around estimating the total distance covered in specific speed categories, with a main focus on the high intensity activities. However, accelerations increase the energy cost imposed on the players even when running at lower speeds. A new model was introduced to determine the physical load during professional soccer matches, based on time motion analysis and on energy expenditure including accelerations. The results obtained with both methods were compared. The model is used to analyze positional data gathered during 11 home matches of AZ Alkmaar, playing in the Dutch “Eredivisie” (premier l eague) in the 2011 2012 season. Based on the speed and acceleration, the energy expenditure for every player at any given moment was calculated. Average energy expenditure was 957 ± 127 kJ for the first half and 918 ± 170 kJ for the second half. Consistency was shown between both analyzing methods when comparing the significant absolute values. However, percentage analysis showed that players covered 8% of total distance at high intensity, although they spent more than 15% of the total energy at high intensity. This indicates that analysis based on energy expenditure produced higher performance intensities and the traditional motion analysis underestimated the physical load for playing a soccer match. The approach used in this study made it possible to analyze soccer matches based on energy expenditure and showed that this method could lead to new insights in the physical load imposed on soccer players. Key Words: Acceleration, Energy cost, Activity pattern, Physical load, High intensity activities
| Item Type: | Thesis (UNSPECIFIED) |
|---|---|
| Supervisor name: | Lemmink, K.A.P.M. and Frencken, W.G.P. |
| Faculty: | Medical Sciences |
| Date Deposited: | 01 Apr 2022 11:37 |
| Last Modified: | 01 Apr 2022 11:37 |
| URI: | https://umcg.studenttheses.ub.rug.nl/id/eprint/3015 |
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