shinfinTM fins are used as Parkinson’s Disease fins because they teach a horizontal body position and good streamlined kick. The trick is to relax and let the fins flow naturally.
Even if you can’t kick and just use your arms for power, the fins will help to lift your legs to a horizontal streamlined swimming position with your knees fairly straight. This minimises drag from leg drop and makes swimming more enjoyable. They work like this for swimming on your front using freestyle, breaststroke or butterfly arm strokes. They also work like this for swimming on your back using backstroke arm strokes and breaststroke style arm strokes.