Rules for performance of exercises
General rules for the exercise of the abdominal muscles
All exercises which are performed lying on your
back (in the "dorsal decubitus position") must be carried out on
a firm and horizontal surface that has been previously padded, such
as a mat, rug, thick carpet or the like. Whenever the "floor" is
mentioned in the description of an exercise, it actually refers
to this padded surface.
In order to perform exercises designed to strengthen
the
abdominal area, the following general rules must be followed:
1. Whenever you exercise the abdominal muscles,
make sure that your lumbar area rests on a suitable surface.
2. Avoid exercises which make you contract the
psoas or arch your back.
3. Work the abdominal muscles in the order set
by the physician: lower, oblique and upper.
4. Perform each exercise as slowly as possible.
Ensure the lumbar spine is rested: If you should exercise
the abdominal muscles without resting the lumbar spine you run the
risk of arching the lumbar spine and overloading the lumbar muscles.
Performing abdominal exercises in this manner is a good way to cause
problems for your lumbar spine, which will become more intense as
you "exercise" it.
Avoid the contraction of the psoas:
Contraction of the abdominal muscles allows the spine to flex forward
up to 30º. The remaining flexion is achieved due to the contraction
of the psoas, which pulls the trunk (torso) until the chest touches
the knees and arches the back forward. The contraction of the psoas
is therefore very effective in terms of movement. If you are lying
on your back, with a straight back and legs stretched out, and should
try to get up in a frontal way, the psoas competes with the abdominal
muscles to carry out one third of the movement - and usually beats
them. After the first 30º of movement, the work depends solely on
the psoas. This means that if you make the abdominals and the psoas
work at the same time, these shall only work a fraction of what
they should: the abdominal exercises described in this web site
have been specifically designed to avoid this happening.
Work the abdominals in the prescribed order: The dynamics
of abdominal muscles work in such a way that the upper abdominals
are contracted when attempting to contract the lower ones, and that
in order to contract the "central" upper abdominals, you must contract
the oblique ones. As a result, if the upper abdominals are contracted
first, the ensuing exhaustion thereof prevents you from suitably
exercising the lower and oblique ones.
Do the exercises slowly: : The slower you perform an exercise,
the more you make the muscles work and the less risk there is of
an involuntary "pulling" of the muscles, which may be painful or
cause spasms.
Doing the exercises slowly is more tiring, but is much more effective
and safe. On the other hand, holding a position of maximum contraction
for an instant increases the work of the muscles and stimulates
the development of strength, therefore making it a worthwhile effort.
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