What is the point of dividing my reps into sets?Instead of 3 sets of 15 reps, can I just do 45 reps straight if I could?Is there a scientific basis for this? Like the 60 second rest between sets necessary in some way?
>>76810655Nothing is strictly necessary, just don't rest for too long (5+ minutes) for some muscles so you don't let lactic acid build up. However, getting some rest between sets is the most optimal way to push for more reps or weight. If you can do 45 reps in a single set then you really need to increase weights basically.
I adhere to the theory of: just go to failure on one set. If you've given the signal of failure to your body that tells it it needs to adapt and grow, then going to failure again just doesn't make sense. Also, why take 2 or 3 or any number of sets to go to failure when you could just do it in 1. Obviously you need to warm up. I've yet to hear any logically convincing argument contrary to this theory.