Give a talk on either an exercise or a sport approach and the speaker is free to lecture on any topic they choose within those areas. 
Your Audience: Exercise leaders, health club owners, and health promotion people (Committee on Health Promotion) and REDUCING EXERCISE/PHYSICAL ACTIVITY DROP OUT.

You should write a paper on any topic that you think suitable for segments or all of your audience.  For example, “Changing your behavior to make you a better coach” or “Body image and physical activity participation” or Exercise effects on psychological function.  Decide what appeals to you and might be appealing to the audience and choose a topic that falls under the heading of sport OR exercise psychology.