Proper hydration during any sort of physical activity is an absolute necessity - there are few more self - evident statements in the entire field of sports nutrition. (completehumanperformance.com)
However, to answer this question in more detail, we need to turn to the relatively young field of sports science. (8fit.com)
Work experience is essential in the competitive field of sport coaching and volunteering positions often lead to more permanent employment. (prospects.ac.uk)