Cells use lipid molecules for energy storage as well as insulation and structuring. These molecules are mostly known in the vernacular as fats although they do encompass m â¦ ore than just traditional fat molecules.
In swimming, your aerobic swim pace will be a result of your average 50 yard or meter freestyle pace or your 100 yard or meter freestyle pace over a given distance. And the given distance will be determined by the particular triathlon for which you will be training.
Speed is all relative to you. If you want to know if 45 min for 1000m would make you competitive against other competitive swimmers, I would have to say no. Most college level swimmers would swim 1000m in around 15 - 20 min (or faster) in a training environment.