Which stroke in swimming will improve my fitness best?
Australian Craw will definitely improve your stamina and your “swimming shape” Australian crawl is also know as freestyle but this is a misnomer in naming because the Crawl is the fastest stroke, it is commonly used in the Freestyle event thus the name carried over A little tip to get max efficiency and max results is to get a coach to oversee your technique for an hour or so when you start out so you know if your doing it right or not 40 minutes is a long time to swim continuously its more beneficial to break that up and swim different strokes and put in some drills also check out this book Total immersion by tom laughing good luck