Another thing you need to take into account is the type of muscles you are about to train. There are two basic types of muscles, known as quick fibers and slow fibers.

All the muscles in the human body contain these types of fibers. This includes the pelvic muscles as well. Each of these fibers plays a different part.

The quick fibers are responsible for the powerful, quick action. Heavy effort is addressing this type of fibers. On the other hand, the slow fibers are responsible with a less intense effort, but which occurs on a longer interval.

For instance, a marathon runner needs to develop the slow-response fibers, while a sprinter will have to train and develop the quick fibers.

However, for the overall strengthening of the pelvic muscles, you need to work hard on both types of fibers. This type of improvement is obtained through a variable intensity of the exercises.

When a muscle is contracted, first are activated the slow fibers. The quick fibers act only when the effort is great, so the contraction needs to be repeated at a maximum of speed or tension.

When you begin to practice the exercises we will present in the following articles, you will notice that some are done with weights, some are quick and short and other are slow and long, plus all the intermediary methods between these extremes.

This will guarantee the preparation of the sexual muscles for all the inevitable variations you will encounter during lovemaking.

Usually, lovemaking with sexual continence brings about complete satisfaction, and lasts longer; therefore you will want to obtain the vigor of the slow fibers.

However, when passion strikes hard, you will definitely need the additional strength of the quick fibers. Thus, training also your quick fibers allows you to be successful in intense action as well.

A final aspect of muscular fitness is that you need to obtain the muscular coordination. When you exercise, not only that you strengthen your muscles, but you also improve the way in which the nerves and the fibers coordinate the the messages received from the brain.

A muscle has thousands of muscular fibers. Each individual nerve is interconnected to a group of muscular fibers, the ensemble of which is known as motor unity.

If you need strength, as for instance for lifting a heavy weight, or maybe an orgasmic contraction, you will use several motor unities of a muscle. Less forceful movements require less motor unities.

However, as soon as you gained a certain degree of control, you will be able to obtain more precise actions of the muscles. This means that you will be able to control different parts of one and the same muscle.

Or you can vary the the speed and rhythm of the contractions, to add variety to a sexual position. Basically, this is all about harmonizing your muscles.

The women from the Far East who are capable to perform highly complex numbers involving their sexual muscles can do them because they have developed their pelvic muscles to such extraordinary degree and control.

A highly difficult trick performed by such a woman consists into the insertion into the vagina of an object somewhat similar in size and shape to an erect penis, on which there is attached a rope.

She ties the free end of the rope to a wheelchair, and asks one of the people watching to sit in the wheelchair while she pulls the chair around the room, using her vaginal muscles.

Another sexual number, of Japanese tradition, is performed by a woman who inserts a pen inside her vagina and then she writes with it best wishes for the people present.

There is no need for you to aspire to these things; they are mere proof of the capacities that can be developed by training your sexual muscles.