(01.06 hc)luis is using a treadmill at the gym that monitors his heart rate electronically. his target heart rate zone is 128 to 170 beats per minute, but his heart rate is currently measuring at 185 beats per minute. what should he do to get the best possible workout?

Rather than stopping completely, Luis should lower the speed of the treadmill, making the aerobic lower, and let his heart rate gradually enter his target range. Stopping completely will interrupt the workout and could negatively impact his muscles and joints, and slowing down the treadmill will allow his body to gradually settle into a new aerobic intensity that's closer to his target. 

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.