Freestyle swimming, also known as the front crawl stroke, involves movements that work muscles throughout your midsection, upper and lower body. Strengthening individual muscle groups can help improve your form and efficiency of the freestyle swimming stoke. . Different muscle groups contribute to particular elements of the freestyle stroke, and...

Freestyle swimming, also known as the front crawl stroke, involves movements that work muscles throughout your midsection, upper and lower body. Strengthening individual muscle groups can help improve your form and efficiency of the freestyle swimming stoke. . Different muscle groups contribute to particular elements of the freestyle stroke, and...

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