Tsukuba, Japan—The underwater dolphin kick is a swimming technique in which propulsion is generated solely through the undulatory motion of the lower limbs, increasing swimmers' speed by moving the ...

By definition, freestyle events permit athletes to use any style of swimming they choose. However, one technique, the front ...

Fingers separate or together? Deep catch or scull stroke? Swim physics debates rage Subscribe to read this story ad-free Get unlimited access to ad-free articles and ...