Quote[/b] ]4.1 Introduction to Metabolic Stress
Increasing metabolic work is pretty easy. If you do a short bout of HIIT cardio with a full-body exerciser, you'll induce enough metabolic stress in your legs and back. If you do 15s after your normal set, you'll induce enough metabolic stress. You also know that increasing metabolic work, partially by further activating the erk1/2 pathway, increases the muscle's metabolism, which increases mobilization of nutrients, increases glycogen and speeds protein uptake at a faster pace, improves recovery, etc. It stimulates “sarcoplasmic” hypertrophy and indirectly sarcomere hypertrophy.