By the age 15 she was a world top freestyle swimmer.
Retrieved from Wikipedia CC BY-SA 3.0
Freestyle swimmers typically develop impressive upper backs and shoulders to power them through the water.
Times, Sunday Times
Spinal problems caused by a back misalignment prevented her from using the optimal flip turn preferred by freestyle swimmers.
Retrieved from Wikipedia CC BY-SA 3.0
At competitive levels, essentially all freestyle swimmers use the front crawl.
Retrieved from Wikipedia CC BY-SA 3.0