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.
â¦ The highest speed reached by a swimmer is 5.05 mph by David Holmes Edgar (US). Mark Spitz (US) in setting the 100 meter record of 51.22 secs. in 1972, required an average of 4.367 mph.. In finding the fastest human swimming speed, the actual speeds were rarely stated in any sources.