How Muscles work

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How Muscles work

How Muscles work

How Muscles work

Some muscles, like the muscles in your heart and digestive system, are involuntary. They work by themselves without you consciously telling them to do anything. Other muscles are voluntary, meaning you order them to move. Both types of muscles are commanded by the brain. The brain sends an electric signal down a series of nerve cells ordering muscles to contract. This is done automatically by your brain with involuntary muscles and manually by your brain with voluntary muscles.

The only thing an individual muscle can do is contract in a single direction. In a joint, there are opposing muscles that contract in opposing directions so you can move in a range of motion. For example, your biceps bend your arm at the elbow and your triceps straighten your arm. One group of muscles contracts while the opposing muscle group relaxes.

A human being has hundreds of muscles in every region of the body. All of these muscles must coordinate with each other to move a person effectively.

This is why muscle coordination is important. Strength training ensures that there is no muscle imbalance.
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