The Theory of Muscle Training (Intro)
The Theory of
Muscle Training
The four basic physical qualities are:
1. Strength
2. Endurance
3. Flexibility
4. Speed
The first three of these qualities have a direct effect on
health. To simplify Speed is important for sports but less
so in everyday life. Flexibility helps prevent injuries and
muscular imbalances. Endurance or stamina is the key
to cardio-respiratory health and reducing flab. Training for
strength is vital for the health of our musculo-skeletal
system.
Let us now consider some key features of muscle training, as
well as basic guidelines and tips, from a cause and
effect standpoint. What is the right way to train?
HOW TO MOVE, HOW TO TRAIN AND SOME MISTAKES TO AVOID
First, it is essential to warm up. Stretching is highly
recommended, as is a balanced intelligent diet and rest.
There are, of course, numerous different warm-up techniques, but
the one described here is simple and effective
for our purposes (the times given are for reference):
1. Begin with gentle to moderate cardiovascular exercise, not
only to activate your heart and breathing but also to
ready yourself mentally for the training session (“psychological
warm-up”). 5 to 10 minutes.
2. Warm up your joints around the area you intend to work out
without using weights. 2 or 3 minutes.
3. Start with a couple of sets of the basic exercise you intend
to do first, using only half the usual weight. It is also
advisable to warm up the synergetic and fixing muscles involved
in the exercises you plan to do. These are
almost always the abdominal and lower back muscles (lumbar
region). 5 or 6 minutes.
4. Briefly stretch the muscles concerned in the planned
exercises. 2 or 3 minutes.
5. Begin the training session, making the first set lighter than
the rest.
Some people will say
they have no time to warm up, but it is worth remembering that if you are
injured you cannot
train at all.
Unless you are
training for a specific sport or activity involving special needs, do your
exercises at a slow or
moderate speed,
avoiding rapid movements. Doing exercises too fast has the following adverse
effects:
- It ruins your
technique.
- The impetus
(inertia) required prevents constant work on the muscle.
- It puts extra strain
on your joints, which can be dangerous.
- You will probably be
using less weight than is necessary to stimulate your muscles (see “intensity”
below).
The explanation lies in
the “velocity curve theory,” the basic conclusion of which is that the faster
the movement, the
lower resistance must
be.
People may exercise
too fast because of time constraints but sometimes this defect is more a matter
of ego or
the wish to project an
image. Obviously, if you keep the same weight but slow down, you will not
manage the same
number of repeats in a
set.
Performing exercises
too quickly is usually safe enough to avoid injury and it does produce some
gains in terms of
strength. If the
movement is too slow, meanwhile, the weight used will also have to be much less
than the specific
muscles concerned
could manage, and they will also tire sooner than necessary. Some bodybuilders
achieve good
results using a
training rhythm of around 2 seconds in the positive phase and 6 or 7 seconds in
the negative phase.
Nevertheless, postures
are uncomfortable and ineffective at such a slow pace (in the eccentric phase),
and it can
be more difficult to
control your breathing. Furthermore, many people make good progress at a
moderate pace. In
this regard, the right
approach is to perform the concentric or positive phase explosively but with
control (i.e., not
too fast) and the
eccentric or negative phase a little more slowly. Another option is to apply a
wave or “pumping”
motion that maintains
a similar rhythm cadence and is, above all, controlled (i.e., in permanent
tension).
Certain studies point
to the advantages of “eccentric only” training, but this research is still at a
very early stage.
Unfortunately, this
technique is difficult in practice using free weights (as a lot of help is
required), and existing
machines are not
usually designed for training in this way. More research is needed in this
area, given the
numerous questions
that remain.
A frequent mistake is
to lock or block the joints at the ascent point of some movements (i.e., the
point of maximum
extension). The most
obvious example here is the dangerous habit of locking the knees when the legs
are fully
extended on a “press”
machine. The main, but not the only, risk is that this can leave the ligaments
and bone
structures to support
the full weight without the help of the main muscle. There is a widespread
belief among
bodybuilders that
taking movements to these limits “works out all of the fibers,” but this is in
fact quite untrue.
Furthermore, the
margin between what is safe and the absolute limit does not involve any workout
loss or impair
the growth of the
muscle. In addition, the chance of sustaining injuries such as dislocation,
torn ligaments, damage
to the joints, torn
muscles and so forth is much greater “at the limits,” especially when under
strain. This does not
mean performing only a
partial movement; on the contrary, it is necessary to attain a good, long trajectory
in the
majority of exercises,
although the danger of injury means that a somewhat shorter movement is better
in some
cases (“squats” or “barbell
preacher-bench curl,” for example). In other cases, however, the movement can
be
taken to the limit
without danger (e.g., trapezius “shoulder shrug”).
Each individual should consider the level
of risk to musculo-skeletal health that he or she is willing to accept.
Breathing
We can draw an initial
distinction here between breathing for light and heavy loads:
- Light loads: keep
your breathing natural and avoid forcing it while doing exercises that use
little weight effort for your personal capacity
and for the muscle involved. This style should also be used when you are
working on very small muscles that put
little demand on the cardio-respiratory system, such as the forearm.
- Heavy loads: proper
technique requires that you inhale through your nose and mouth at the same time
(or only through the mouth for
short, quick breaths) during the first half or during the first third of the movement, and exhale through your
mouth in the last half or the last third. The rest of the time you should hold
your breath. In
certain heavy
exercises (e.g., squats or bench press) you can begin as you take the strain
just before starting the movement, although
this requires some practice. If you breathe in through the nose only, as you
would do at rest, you will not produce
sufficient air flow for the effort involved in weightlifting exercises.
Another reason for
this rather unnatural breathing is that the body’s own levers function better
when supported by a firm trunk.
Inhalation should be moderate, neither very deep nor very shallow.
Do not eat, drink or
chew gum when you are doing the exercise set, as this hinders normal breathing.
HOW LONG SHOULD I REST
BETWEEN SERIES AND EXERCISES?
This depends on
several factors, including your objectives, the specific exercise concerned,
individual fitness, and the muscles involved.
In general terms, you
should restart the exercise and do your next set when your breathing slows to
normal from
the panting caused by
the effort, or when you feel the local muscular congestion caused by the
exercise go down.
As these variables are
not constant and depend on the individual and the muscles involved in the
workout, the best advice is to wait
until you can do another a series like the preceding one (same weight and
number of repeats), but without lingering
until you get “cold.” Large muscle groups need more rest. The feeling of muscle
burn is not
always a good
benchmark, as very heavy exercises do not produce much accumulation of lactic
acid, but they do cause neuro-muscular
fatigue and depletion of anaerobic energy reserves. This is a common error even
among veteran weight
trainers, who see the burning feeling as the only sign of an exercise well done
and hang onto it to decide the number of
repeats (see”Lactic acid”).
The average rest period should be between 1
and 3 minutes.
Credit: Encyclopedia of Muscle
Exercises
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