All about base excess â to BE or not to BE. In 1948, Singer and Hastings introduced the concept of buffer base (BB). The change in BB from normal was called deltaBB (Î´BB). This change in BB was an expression of the non-respiratory (metabolic) component of an acid-base disturbance.
Empirically from http://www.usaswimming.org/_Rain..., free style is the fastest stroke. This is also called the front crawl (see Front crawl). However as Swimming stroke notes, there are at least 6 variations of that technique.
The french swimmer FrÃ©dÃ©rick Bousquet set world record in the 50 m freestyle with a time of 20.94 seconds . Over the course of the race, he swam at an average speed of 5.342 mph (8.6 km/hr) and is the fastest recorded speed of a human swimming. To put into perspective the Sailfish can swim at 68mph (110km/hr) on distances much greater than 50 m. Written May 5, 2015 â¢ View Upvotes.