The flow of water within a muscle fiber may dictate how quickly muscle can contract, according to a new study. The flow of water within a muscle fiber may dictate how quickly muscle can contract, ...

Building muscles: Muscle stem cells (their nuclei marked in blue) gradually alter their structure and function, becoming adult muscle cells (whose nuclei turn red). Those cells will eventually fuse ...

Building a powerful, consistent workout routine at home requires the right equipment—machines that are safe, versatile, and ...

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Most machines you find at the gym are engineered to train specific muscles—usually a primary muscle and one or more secondary muscles. The chest press machine works your pectorals and shoulders, while ...

The flow of water within a muscle fiber may dictate how quickly muscle can contract, according to a University of Michigan study. Nearly all animals use muscle to move, and it's been known for a long ...