Thanks for visiting my gym log, Brenda and Debbie! Yes Deb, UrbanZero suggested doing 8 reps with the weight being heavy enought that I CANT do a 9th rep. I used to do weight training every workout, but then when I got real heavy, I started doing just cardio. I just got back into weight training....I think about a month ago? So my weight amounts ARE really wimpy right now, but they are heavy enough I can barely get in 8, believe it or not! I didn't see these posts until I got back from working out this afternoon, but I'll do arms last next time I work out. And thanks for shedding light on what muscles the exercises work out. I was going by the pictures on the machines, so I thought I had 3 for back and 3 for triceps, but I guess I didn't.
This all shows that a person can be working out for many years and still not have a very good idea about what they are doing!