What type of swimming provides the best form of exercise?

Answer best swimming stroke for workoutthe best type of swimming for exercise is "freestyle" or Australian Crawl will give the best overall fitness workout. Mostly because there is no lull in the stroke, so while in motion there is no rest, and it causes the least amount of stress on sensitive muscle groups. my short answer to your question would be this: whichever stroke you can maintain for the longest amount of time. the long answer could go on for a while.....ie, breast stroke is good for glut's, butterfly is great for shoulders and hamstrings and chest, while back stoke is an awesome leg workout, as well as traps and lats.