aerobic vs anaerobic

[ktreloar]

hey guys just had a thought the other day, when you do a typical FRC dive at what stage is your body in aerobic and what stage is it in anaerobic? Im also curious how to determine whether your working aerobic or anaerobic?

Cheers guys

Kyle Treloar

 

[efattah]

There is no clear distinction between aerobic and anaerobic. During aerobic activity, every combustion reaction produces lactic acid and the lactic acid is immediately removed by an oxygen reaction. If O2 availability is insufficient, some lactic acid is not removed by oxygen. During 'pure' anaerobic activity, none of the lactic acid is removed by oxygen.

During a typical dive, some fraction of lactic acid is being removed by oxygen. So you are in a partly aerobic/partly anaerobic mode. If you have strong vasoconstriction, you will be 'more' in anaerobic mode than aerobic mode (more lactate accumulation, less lactate removal). If you have weak vasoconstriction and if you swim slowly, you could be almost completely in aerobic mode.