| | Conditions & Treatments | Muscle Strains What is dynamic static muscles contraction? There is no such thing as dynamic static muscle contraction. Muscle contractions are either dynamic (concentric or eccentric) or static (isometric). Muscle Strains - Related Articles What causes increased contractility of cardiac muscles? Infrared Sauna Pros & Cons What is that thin membrane surrounding a muscle fiber called? Why do men have stretch marks? Causes of Weakness in Legs Exercises for Strained Hamstrings How to Overcome Leg Cramps