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.
Freestyle, also known as Front Crawl, is the fastest swimming stroke in which you swim from side to side with your head ideally down as you set up a high catch with your â¦ arms reaching out front alternatively and as you create propulsions with your up and down or flutter kick movements. + 1 other found this useful.