I was told once by someone who had spent the last twenty odd years in the gym that your test peaks between the first 25-45mins of a high intensity work out.Beyond that point your wasting your time.
His advice was to train each muscle group separatley on separate days in 45mins or less, the exception being arms, which he suggested super setting bi's and tri's on that day.Attempting 40secs rest between sets of isolation moves, and 90 secs between compounds.
Five days on, two off.
Any thoughts?