If the title goes to the muscle that can exert the most force, the victor would be the soleus, or the calf muscle, according to Gray's Anatomy, the anatomy textbook.
What Is The Strongest Muscle In The Human Body Relative To Its Size?
The way to test which one is stronger is to attach each muscle to a force transducer which tells how hard the muscle pulls and stimulate the muscle electrically to cause contraction.
