That's really interesting Mike - thanks for posting. I was wondering though, if the weight remains the same for, say bicep curls, but the number of reps per set declines due to fatigue over a series of set (from say 25 plus, down to set of 10 to 12) is that having an equivalent effect? Ummm... I'm guessing probably not as the muscles will be in a different state of 'potential' once the exercise period has begun, compared to when they were fresh at the start of the period. Not sure I'm making sense - must be cognitve fatigue as well![]()