http://www.seanhyson.com/blog/interview-with-arnold
Sean: What is your training like these days?
Arnold: I do circuit training now. Five or six exercises in a row, higher reps, no rest. I just want to keep my muscles stimulated and firm. I start with cardio. I’ll do 10 minutes on the exercise bike and then do the circuit. Then I’ll do another 10 minutes and do another circuit, and so on. I’ll do five rounds. The exercises change from one workout to the next to use the shocking method. I might do one or two exercises per body part. I might do a pulldown, then a calf exercise, then a chest exercise, then a bentover row. Sometimes I’ll do 10 reps or 30 or 40 reps per exercise.