Muscle fibers can be found in skeletal, cardiac, and smooth muscles, and work to do different things in the body.

Understanding muscle fibers allows us to design workouts that target specific fiber types, train them at the correct intensity and for the proper duration, and ensure maximum adaptation.

Cardiac muscle tissue, or myocardium, is a type of muscle tissue that forms the heart. It contracts and releases involuntarily and keeps the heart pumping blood around the body.

Featured While skeletal muscle attaches to your bones and helps you move, cardiac muscle is the muscle fibers of your heart and responsible for its pumping action.

The cardiac muscle tissue of your right ventricle is replaced with fatty or fiber-rich tissue. This can lead to arrhythmia, which refers to an abnormal heart rate or rhythm.

For decades, scientists believed that muscle fiber typology was mostly set at birth—some people were built for speed, others ...

T he heart is the body's hardest-working muscle. Whether you're awake or asleep, or exercising or resting, your heart is always at work. It pumps blood through arteries to deliver oxygen to organs and ...

This complication is what has so far complicated efforts to 3D print complex tissues and entire organs, but recently researchers have demonstrated a way to 3D print heart muscle which can contract ...

While the cardiac muscle makes your heart beat and the smooth muscle lines your intestines, pushing food through your system, the skeletal muscle plays the biggest role in human locomotion.

Cardiac and neurologic examinations indicated cardiac and skeletal muscle disease. A skeletal-muscle biopsy for mitochondrial investigation was performed.

Sweat Science How Your Muscle Fibers Might Predict Overtraining A new study suggests that slow-twitch runners can handle higher mileage than fast-twitch runners before showing signs of overtraining ...