Sally is training for the 1000 meter running race at her school her goal is to place third or better how did sally determine if she is making progress toward her goal

The better her time for running it everyday gets

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.