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Mechanical Player Load™ using trunk-mounted accelerometry in football: Is it a reliable, task- and player-specific observation?

Barreira, P and Robinson, MA and Drust, B and Nedergaard, NJ and Raja Azidin, RM and Vanrenterghem, J (2016) Mechanical Player Load™ using trunk-mounted accelerometry in football: Is it a reliable, task- and player-specific observation? Journal of Sports Sciences. ISSN 1466-447X

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Abstract

The aim of the present study was to examine reliability and construct convergent validity of Player Load™ (PL) from trunk-mounted accelerometry, expressed as a cumulative measure and an intensity measure (PL · min(-)(1)). Fifteen male participants twice performed an overground football match simulation that included four different multidirectional football actions (jog, side cut, stride and sprint) whilst wearing a trunk-mounted accelerometer inbuilt in a global positioning system unit. Results showed a moderate-to-high reliability as indicated by the intra-class correlation coefficient (0.806-0.949) and limits of agreement. Convergent validity analysis showed considerable between-participant variation (coefficient of variation range 14.5-24.5%), which was not explained from participant demographics despite a negative association with body height for the stride task. Between-task variations generally showed a moderate correlation between ranking of participants for PL (0.593-0.764) and PL · min(-)(1) (0.282-0.736). It was concluded that monitoring PL(®) in football multidirectional actions presents moderate-to-high reliability, that between-participant variability most likely relies on the individual's locomotive skills and not their anthropometrics, and that the intensity of a task expressed by PL · min(-)(1) is largely related to the running velocity of the task.

Item Type: Article
Additional Information: This is an Accepted Manuscript of an article published by Taylor & Francis in Journal of Sports Sciences on 06/09/16, available online: http://www.tandfonline.com/10.1080/02640414.2016.1229015
Uncontrolled Keywords: 1106 Human Movement And Sports Science, 1302 Curriculum And Pedagogy
Subjects: G Geography. Anthropology. Recreation > GV Recreation Leisure > GV561 Sports
Divisions: Sport & Exercise Sciences
Publisher: Taylor & Francis
Related URLs:
Date Deposited: 05 Oct 2016 08:32
Last Modified: 07 Sep 2017 13:08
DOI or Identification number: 10.1080/02640414.2016.1229015
URI: http://researchonline.ljmu.ac.uk/id/eprint/4246

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