To know what muscles I have been working on I have kept a log in the past on what exercises I do along with what the weight is set at and how many repetitions I do at that time. No record today as I did not take some index cards with me or a pencil. I lost my old records from over a year ago since I was there last.

I will get some index cards and start a record again.

Just from today's memory I done these today. bat swing while sitting down  25 lbs twenty repetitions each side, Abdominal crunch 100 lbs 50 reps, arm curl 40 lbs 20 reps, pec fly 100 lbs forward and reverse 20 reps each, pull down 80 lbs about thirty reps,  Leg equipment sitting down 40 lbs 50 reps in 50 reps out. Leg extension 40 lbs twenty reps up twenty reps down. That is all I can remember right now.

For reference on what muscles I am working on when I do different exercises here is a muscle anatomy chart.

http://www.shapesense.com/fitness-exercise/muscle-anatomy/