Now this will depend on type of work you apply for. As fitness consultant you need to have qualifications in order to be able to get a job, must be able to talk to people, be able to assist others, by knowing your target of interest, Sports specific you should be able to consider different Individuals with different needs by understanding and knowing your client needs now that is where the anatomical, Physiology, Psychology. Kinetic, Nutrition, Sports specificity plays a role, because you have to recommend expertees of good quality exercise program that suits individual need and eating plan that would motivate the activity. Be able to spot a certain level of intensity to a minimum level needed by that particular person.
Not much I can say because they asked me more from my CV.