How does in vitro fertilization work?

During IVF, an egg is removed from a woman’s ovaries. This egg is fertilised with sperm in a laboratory. Then, the fertilised egg is put back in the woman's uterus to grow as if the fertilisation had occurred naturally. Often more than one fertilised egg is put back, to offer the best chance of success.

Well if you pick a machine to work on and that's gonna be your exercise if you don't stick to that machine your muscle strength your muscle mass rather will change because you haven't been doing it you change something in your exercise routine which changes your body's form of dealing with things for example you might become weaker or stronger depending on what kind of exercises you do in whether or not the machine you picked actually your muscles grow.