I have conducted a multiphase mixed-methods research, through which i developed, implemented and evaluated an injury surveillance system that was tailored for stakeholders as a practical injury monitoring tool and through which i could obtain injury epidemiological data. However, I am not sure whether the following overarching research aim should be phrased in this way:
"The overarching aim of this thesis is to develop, implement, and evaluate a context-specific injury surveillance system tailored to the needs of the U/21 Maltese national football team stakeholders through which a comprehensive year-round study of injury epidemiology within the U/21 National football team could be conducted."
I'd really appreciate your views about this.
Based on the information provided, it appears that the aim of your mixed-methods research is sound. The aim is clear and specific, indicating that the research is focused on developing, implementing, and evaluating an injury surveillance system tailored to the needs of a specific group (the U/21 Maltese national football team stakeholders) with the goal of conducting a comprehensive study of injury epidemiology within the team. This is a relevant and important aim for injury prevention and management in sports.
I did not see any clear specification of a qualitative method, since most epidemiology is quantitative. In addition, I would like to have a specification for the integration of the qualitative and quantitative results.