|This article is a stub. You can help Athlepedia by .
Isometric contraction is a muscular action that does not result in a change in the length of the muscle. Specifically, the resistance force is equal to the force output of the involved muscles. Examples include wall sits, planks, and holding the pushup position. 
- ↑ Donche, Dan (2008). FF Trainer Certification Guide. USA: Fatal Fitness.