Authors’ Reply to Carling et al: Comment on: “The Use of Microtechnology to Quantify the Peak Match Demands of the Football Codes: A Systematic Review”
We thank Carling et al.  for their constructive comments on our recent systematic review  and welcome the opportunity to address the points they raise. We agree that further debate and research is required in this area. We addressed a range of limitations of current research and suggested a range of future directions in our review , and we are glad this has prompted further discussion in the area.
First, Carling et al.  expressed their concern that restriction of the review  to microtechnology-derived data omitted several studies in soccer (e.g., Bradley et al. , Di Mascio and Bradley , Fransson et al. , Mohr et al. [6, 7]). These studies were not included in our systematic review because they used optical tracking techniques as opposed to microtechnology devices. Thus, they did not meet the eligibility criteria and were removed at the screening stage (see Fig. 1 in Whitehead et al. ). We would first like to emphasis the title of our review:...
Compliance with Ethical Standards
No sources of funding were used to assist in the preparation of this letter.
Conflict of interest
Sarah Whitehead, Kevin Till, Dan Weaving and Ben Jones have no conflicts of interest relevant to the content of this letter.
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