Be careful who you take your advice from. Just because someone else tells you something is impossible doesn't make it so. What do you want to achieve? Find people who are doing it and learn from them. If you can't find anyone I guess you'll have to be the first person to do it.
65 Conditioning Exercises for Cheerleading - with Stan Tabor, National Cheerleaders Association's State Director for Arkansas, Louisiana, and Mississippi. Former University of Arkansas-Little Rock Cheer Coach