I heard some people say it few times - "He hit the wall and couldn't finish the race...". What does it mean? what happens to the body in this situation? How can this be avoided?
In endurance sports such as cycling and running, hitting the wall or the bonk describes a condition caused by the depletion of glycogen stores in the liver and muscles, which manifests itself by sudden fatigue and loss of energy.
Hitting the wall means sudden fatigue and loss of energy which is caused by the depletion of glycogen stores in the liver and muscles.
To avoid this you need to
- ensure the glycogen levels are high when the running begins
- maintain glucose levels during running by eating or drinking carbohydrate-rich substances, or by reducing running intensity.