Energy Systems Explained: The Science of Sports Performance
What is "fitness" actually? 🏃♂️💨 In this video, we break down the three energy systems that power every movement you make—from explosive sprints to marathon endurance.
Understanding how your body resynthesises ATP (your body’s energy currency) is the secret to moving from "just getting tired" to "training smarter." We explore the Phosphagen system, the Glycolytic system, and the Oxidative system, explaining how they work together as a continuum rather than in isolation.
What we cover:
• What is ATP and why do we only store 2 seconds of it?
• The truth about Lactate (it’s not the enemy!).
• How the Aerobic system fuels your recovery between high-intensity bursts.
• How to match your conditioning to the specific demands of your sport.
🕒 Timestamps:
0:00 Intro — Overview
0:37 What are Energy Systems?
1:00 What is ATP?
1:38 How Energy is Released (ATP ➡️ ADP + Pi + Energy)
2:14 Phosphagen / ATP-PC System (Power)
3:27 Anaerobic Glycolytic System (Speed/Sustained)
4:11 Lactate: Friend or Foe?
5:04 Oxidative / Aerobic System (Endurance & Recovery)
6:14 How the Systems Work Together (The Continuum)
6:42 Wrap-Up: Training Smarter, Not Harder
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