Quote From kugashe:
YES My question is on "digital technologies and physical education teacher continuous professional development in physical education and sport
No, that is not your question, but your area of research interest. What you need to do is a quick review of the literature in this area, try to find gaps, and then frame your question/s based on that. You will then need to state why you think the question is both important and original (for example, wheels are important, but there is no point in trying to reinvent the damn things, unless you can show that a differently shaped wheel can be just as effective or even more efficient than a circular wheel), and how you will go about finding the answer.
No one expects a proposal to be up to finished PhD thesis standard, but what you will need to do is to demonstrate that your research can be a piece of work that has some original contribution to knowledge in the field, and that it can be done in the time frame of a PhD (3-4 years).