A lot of people do fitness and strength training without knowing what they are doing, how the muscles work and how to maximize their potential. You have probably wondered how your muscles work. What makes them bigger, is it lifting weights? Well, you are about to find out.
We have about 650 skeletal muscles in our body. We won’t be going into specific details here. Some common ones are biceps, triceps, deltoid, pectoralis or pecs, quadriceps or quads and so on.
They help us to move our body. Some other kinds of muscle like the cardiac muscle in the heart help pump blood to different parts of the body.
WHAT MAKES UP A MUSCLE
Our muscles are beautifully designed. Fibres make up a muscle. Myofibrils make up a fibre. Each individual myofibril is divided into small units called sarcomeres.
Sarcomeres consist of thin and thick filaments known as the actin and myosin filaments respectively.
Motor neurons stimulate the release of calcium into the sarcomeres which makes the thin and thick filaments to pull towards each other. This results in contraction.
HOW YOUR MUSCLES WORK
Stretching our muscles against a load of stress creates a passive tension which makes the muscles recoil. The more the weight the more the passive tension and the recoil. This is what makes our muscles grow. Just think about stretching a rubber band and how it won’t go back to its normal size after this.
Once you know how our muscles work you realize you don’t necessarily need to lift heavy weights in other to make your muscles bigger. Anything that can cause resistance and make our muscle stretch will make the muscles contract and thereby making them grow.
You can damage your muscles if you try to overstretch or overwork them. This means lifting heavier weights than you are able to. The muscles won’t be able to contract properly. Now that you know how our muscles work you are ready to do fitness the right way.
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