Choose a Sport
Whatever
sport or activity you practice ,
there are three different ways of muscles actions :
 Concentric action :
The muscles fibers shorten as tension develops.
Eccentric action.
Muscles lengthen while developing tension when external resistance exceeds muscle
strength.
Isometric action.
This occurs when a muscle generates strength and attempts to shorten but can't overcome external resistance (for example when we try to move an object attached to the
ground). This method of contraction is particularly interesting for
all those which have a muscular accident and are
obliged to rest. There is neither progress nor profit of
strength but a muscular maintenance making it possible
not to start again from "zero" in their training.
Specifications about some sports :
 Judo 
This sport develops flexibility and coordination (projections on the floor and immobilizations), intelligence (good comprehension of reactions of partners), and self-control. It is also used to overcome timidity and to know
better our body.
It's a sport of defense and for this reason interests much women. However, it's not advised to those who suffer from spinal column or those which have scoliosis or other anomalies as well as with pregnant women. Projections on the floor are traumatizing.
The judo is not a sport of rehabilitation or therapeutic except for timid persons or introverted people.
Karate 
This sport is of a frightening effectiveness in self-defense, it requires a self-control and a good technique. It requires much concentration and absolute control
of our breathing and our limbs.
The method is based on defenses and attacks by using our body rationally. We use techniques of dislocation, reinforcement and inversion. Except during the training, there are
no holds barred except for the face.
Karate is a sport of steam off and requires a good muscular coordination to aim at a precise point. As for judo, karate experts are different
by getting "dan", the fifth one is the highest distinction.
Squash
It's necessary to have a violent striking of balls and displacement very fast on a synthetic and closed field. This sport requires to be at least two people, to
have a good physical condition, a controlled breathing, a good general health.
It's necessary to strike the rubber ball with violence on a wall for making it to heat and to harden for that it rebounds. It causes many traumatisms of shoulders,
elbows and knees which is why it's interesting to practice workout in order to reinforce its musculature because moving are fast and stops are strong.
This sport is perfect for developing muscles of buttocks and thighs. It reinforces also heart (cardiac resistance to effort). It's recommended to
supervise our cardiac pulsations and to rest between games, and services.
Aikido 
Aikido is one of rare martial sports which is practiced with an aim of "immediate pleasure". It's consist on practicing movements to play with its body and
move, to leave a delicate situation without having any confrontation.
This sport is at the same time cerebral and physical because we give a tap to somebody with fists and feet on a vital point of the body. The techniques are dodging,
moving, feints, indirect opposition to the attack. It' s a sport of flexibility, agility and intelligence. At the opposite of judo, it can be a rehabilitation sport
for spinal column because movements can be arranged depending on condition of the patient.
Swimming 
Swimming is an excellent sport for all those which have circulatory problems (arthritis, varicose veins ...) and all people
interested by water sports ! The control of its breathing is of
primary importance. Swimming of endurance develops muscles, vital capacity, and joints flexibility.
Swimming is recommended to victims of accidents, with people who have rheumatisms, sedentary lifestyles .., because in water our articulations don' t undergo weight of our
body. Our body produce heat because of efforts, it adapts easily and quickly in cold water and that gets a certain wellness.
Should be paid attention to come into water gradually to allow a gradual adaptation of our body to temperature of water.
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