- 1). Perform a physical activity, such as running.
- 2). Evaluate the way you are breathing while you are running. The way you are breathing is called aerobic respiration. This metabolic process converts one glucose molecule to 38 ATP (energy) molecules. This is why you can continue running for long periods of time at a steady pace.
- 3). Increase your pace from running to sprinting. You should only be able to sprint for a short distance.
- 4). Evaluate the way you are breathing. They way you are breathing is called anaerobic respiration. This process is called lactate fermentation. Two molecules of ATP (energy) are produced for every one molecule of glucose used. Since you are producing less energy, your body begins to get tired.
- 5). Evaluate how your body feels. Once you started sprinting, your body started taking in less oxygen. When you don't take in enough oxygen, the oxygen cannot break down completely. When this occurs, lactic acid forms (lactate fermentation) and the muscles in your body begin to feel pain.
- 6). Steady your breathing to catch your breath. Once your oxygen levels increase, the lactic acid is no longer being formed and the oxygen is converted into more energy again.
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