themusclephd

🔹Lactic Acid is a large component of the metabolic stress that makes us gain muscle. Lactic acid is produced mainly when we use our muscle carb stores (glycogen) at very high levels and when our oxygen energy systems cant keep pace.This occurs with 30-90 seconds of all out work.
-
💥You can accomplish this by sprinting or lifting for sets that last 30-90 seconds (time under tension). Therefore you can time your sets or sprints accordingly to maximize the metabolic components to muscle growth.