Today I swapped out my upper body and lower body workout routines to exercises using resistance bands. My core exercises remain the same as they are still challenging to me. I also changed my fitness plan to work out full body MWF. This way I can get in 3 workouts per week instead of the two I had planned last month, in which I alternated between core, upper body and lower body MON - SAT. I love my new resistance bands. They challenge me and there's lots of room for increased strength. I also decided to add a half mile (or 10) minutes to my 2 mile cardio routine so that I can warm up and cool down and walk 40 minutes at my target heart rate. I'm making progress.