Voluntary Muscle, Muscle Tone and Posture

Voluntary Muscle, Muscle Tone and Posture

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The muscles in the body are classified into three groups: Voluntary, Involuntary and Cardiac.

It is the muscles which are the most important for sports people. (For example, the biceps, triceps, quadriceps, hamstrings etc.) These form about 40% of our total body weight. Muscle bulk, strength and can be developed through weight training. Voluntary muscles are attached to the and move the bones at joints. Any kind of sporting activity results in the increased use of voluntary muscle.

The brain sends messages to the muscle through the central system when we consciously decide that we want the muscle to contract. Voluntary muscles allow us to throw the javelin, kick a football, swim, sprint and any other action where the joint angles change and the skeleton moves.

Poor posture when exercising can lead to immediate and serious .

Bending the knees rather than the back is vital!

Voluntary muscles also contract to maintain good posture when sitting, standing or moving. The muscles are always in a state of slight tension. This state is called muscle tone. Good tone is essential to help avoid injury and postural defects such as scoliosis, kyphosis and lordosis.

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