REV0lution Health Library

Evidence-informed articles on nutrition, metabolism, hormones, digestive health, fitness, recovery, lab testing, and functional medicine.

Gut Health
IBS, bloating, GERD, constipation, gut health
Hormones
PCOS, perimenopause, menopause, cortisol
Thyroid Health
Hashimoto's, hypothyroidism, thyroid labs
Metabolic Health
Insulin resistance, blood sugar, weight loss resistance
Autoimmune Disease
Autoimmunity, inflammation, immune regulation, root-cause support

Advanced Lab Analysis
Functional testing, blood chemistry, GI-MAP, DUTCH, OAT, and lab interpretation
Fitness & Recovery
Strength, movement, sleep, recovery, performance, and resilience
Functional Medicine
Root-cause care, systems thinking, symptom patterns, and whole-person health
Nutrition & Performance
Protein, fueling, body composition, exercise nutrition, and metabolic health

Understand your health. Backed by science.

How Does the Body Produce Energy During Exercise?

Kerri Rachelle

Published on: 28/07/2026

Learn how the ATP-PC, glycolytic and aerobic energy systems work, overlap and shift during exercise—and how fuel, rest and creatine affect them.

energy systems in exercisethree energy systemsATP-PC systemphosphagen systemglycolytic energy systemaerobic energy systemoxidative energy systemhow the body produces energy during exerciseATP during exerciseaerobic vs anaerobic exercisecreatine and ATPphosphocreatinelactate during exerciseexercise metabolismworkout energy systemscreatine monohydrate