Study Reveals Water Flow Dictates Muscle Contraction Speed

University of Michigan and Harvard researchers find fluid dynamics within muscle fibers set limits on contraction rates.

Muscles are composed of approximately 70% water, influencing their performance.
Researchers developed a model showing fluid movement through fibers controls contraction speed.
A new type of elasticity, termed 'odd elasticity,' allows muscles to generate power through 3D deformations.
The findings could impact the design of artificial muscles and shape-morphing materials.
The study suggests a need to revise our understanding of muscle physiology and its role in animal movement.