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THE ROLE AND SEQUENCE OF USING DIFFERENT TRAINING LOAD INTENSITIES
By Dr. A. P. Bondarchuk, et al
Various ranges of intensity, such as maximum, near-maximum, medium, weak,
and moderate, are used in speed-strength sports. These zones reflect the
intensity of the training on the individual’s body. We measure the training effect in
running by the amount of work done per unit of time; in throwing events, by the
distance of throws; in barbell exercises, by the amount of weight lifted.
A weak or medium-intensity training load develops needed physical abilities and
also benefits restorative processes.
If we did not have such quantitative and qualitative load categories, we would not
be able to analyze an athlete’s training objec tively. Different training-load
intensities have different effects on learning technique, on improving technique,
on the development of the needed physical abilities, and on restorative
processes.
In Ozolin’ s opinion, the tasks that need to be accomplished over the course of
year-round training are the following:
1. To achieve the super-compensation effect (restoration of the body and
raising its functional potentials to a level higher than the pre-existing level);
2. To strengthen the functional potentials and the morphological and
biological changes at the a thlete’s achievement level;
3. To acquire motor abilities and skills in sports techniques and tactics;
4. To strengthen motor skills in sports techniques and tactics;
5. To actively recover from physical exercises, training sessions, and
competitions (active rest).
Each of the above goals can be accomplished by using one intensity level or
another. Thus, a weak or medium-intensity training load develops needed
physical abilities and also benefits restorative processes.
The benefit of weak and medium-intensity training loads on restorative processes
is explained differently in both cases, and the mechanisms are totally different
from each other. The restorative processes that follow weak-intensity loads
produce weak irradiation of the basic neural processes.
As a result, the neural centers are dis-inhibited from the previous load. A
medium-intensity training load produces a concentration of stimulating and
inhibiting processes and restoration occurs because of concentrated inhibition.
Medical-biological studies done on hammer throwers of different qualification
levels show that a weak or medium-intensity training load produces moderate
cardio-vascular and central nervous system changes and the restorative
processes occur faster than after maximum-intensity loads. A medium-intensity
load actively influences biochemical processes in muscles and tissues. Thus,
repeating a medium- intensity load after a short rest reduces the blood’s lactic
acid level, et al.
Its effect is also undiminished when the technique of individual sports is being
learned and improved, because the movements performed at weak, medium,
and maximum speed (intensity) differ because of their dissimilar physiological
characteristics. The biggest differences lie in the fact that it is hard, at maximal
speeds, to make sensory corrections while actually performing the movement —
the reflex arc is not able to operate.
Performing complex movements at high speeds is fraught with difficulties.
Exercises performed at sub-maximal levels allow technique to be better
controlled, which is particularly important for beginners.
A weak-intensity training load benefits speed-strength abilities in athletes with
low qualifications, where the effectiveness of the training methods does not
depend on the magnitude of the external effects. In light of this, we recommend
that novices and lower qualified athletes use weak-intensity training loads.
Besides developing their strength, using these loads will facilitate a broader,
fuller s ense of the movement’s rhythm.
Medium and maximum-intensity training loads play a major role in the training of
highly qualified athletes, when we are speaking of physical development. Lowerintensity
training loads inhibit improved performances in speed- strength sports.
Exercises performed at sub- maximal levels allow technique to be better
controlled.
The abuse, or misuse, of intense loads, especially in young athletes, leads to
over-stress and overloading, which are detrimental to health. For this reason, the
amount of maximum-intensity work should be individually determined for each
athlete.
Thus, a varied-intensity training load helps an athlete to learn and improve
technique, develops the needed physical abilities, and aids restorative
processes. We advise using a weak-intensity training load for lower qualified
athletes, without completely eliminating medium and maximum intensities. For
highly qualified athletes, we recommend medium and maximum-intensity loads
plus weak-intensity loads in small amounts (for special warm-ups).
The Sequence of Using Different Intensities
When Pavlov studied the activity of the central nervous system, he noted that
weak stimuli provoke weak irradiation; maximal stimuli, strong irradiation; and
medium stimuli, a concentration of stimulation and inhibition processes. Weak
irradiation dis-inhibits the cerebral cortex (more correctly, certain of its neural
centers).
The presence of these processes in the central nervous system’s complex and
many-sided activities suggests that there are different levels of activation. They
arise in certain cerebral structures under the influence of different stimuli.
Activation is highly specific. There are several activation systems. Each system
has an independent substrate.
It seems natural that different stimuli (their complexes), by influencing a given
central nervous system structure in a certain way, would surely influence the
processes of learning and improving throwing technique, developing the needed
physical abilities, and so on.
Weak-intensity exercises help novices learn technique, improve technique, and
develop speed-strength. Weak-intensity exercises prepare the athlete for the
next sports activity in each training session; however, for highly qualified athletes,
weak-intensity exercises provide a special warm-up.
We suggest (and we have substantiated this in experimental studies) that nearmaximum
and maximum-intensity loads be used after weak-intensity loads if they
have been planned in a given workout. This sequence should be followed for the
following reasons:
1. One stipulation for achieving strong performances is to systematically use
near-maximum and maximum-intensity exercises, while striving to exceed
one’s top speed in train ing;
2. The greatest effect from maximum intensity exercises can be gotten only if
the body is in good condition and is not fatigued from previous work.
According to the studies of Leshkevich, Makarov, Popov, Rogozkin
Chagovets, and Yakovlev, the optimal state (as a result of warming up)
occurs only during the main part of the workout, and this period is the best
for establishing conditioned reflexes, which are basic to the learning of
technique;
3. Speed exercises require highly intense muscle contractions, good
mobility, and strong stimulation and inhibition. Hence, the needed
movement coordination may be maintained if significant fatigue is absent.
This proviso also applies when the focus is on developing strength;
4. Maximum-intensity loads are followed by medium-intensity loads, which
have a positive influence on learning and improving the technique of
individual sports and on developing speed-strength;
5. Medium-intensity loads that are done at the end of a workout support and
bolster restorative processes.
We are convinced (supported by the experience of the top athletes in the nation
and in the world) that loads of different intensities should be used in the workouts
of highly qualified athletes in each session during the preparatory and
competitive periods.
Skillful alternation of these loads will help the athlete to learn and improve
technique, develop the needed speed-strength and obtain the best post-workout
restoration. The sequence is as follows: weak- intensity loads, then maximum
intensity loads, and last medium-intensity loads.
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