How
is oxygen transport to working muscles increased in response
to the challenge of mild to maximal rebounding aerobics? How
is oxygen transport maintained when rebounding is prolonged
and demands on the cardiovascular system for heat transport
from the muscles are gradually superimposed? These are questions
which might be considered when the purchaser of a rebound
unit compares his new exercising device to the competition
of other ways to exercise.
Once
oxygen is absorbed into the red blood cells in the pulmonary
circulation, the transport to working muscles is increased
by increasing cardiac output and arteriovenous (a-v) oxygen
difference. The circulatory response to rebounding is a function
of age, sex, posture, and the muscle mass of an individual.
The a-v maximum oxygen extraction to nourish the muscle cells
is 85 to 90 percent. That's the most oxygen you can get from
your blood with the greatest exercise effort, for any exercise
movement. This is the exact amount of oxygen extraction achieved
with forty minutes of rebounding aerobics performed at the
fastest speed by an athlete with very high maximal oxygen
uptake (V02).
Heat transport from the moving muscles is maintained by sacrificing
the blood flow to the splanchnic region of the body. The splanchnic
takes in the visceraor gut comprising the contents of the abdominal
cavity.The splanchnic region normally receives 20 to 25 percent of
the total cardiac output at rest, but during exercise the blood flow
is shunted away from this area. Up to 400 milliliters of oxygen per
minute can be redistributed from the splanchnic region to actively
working muscle without any additional increase in cardiac output.7
This is a main reason why you should not ingest food before engaging
in rebounding aerobics. There is very little blood flow to nourish
the organs of digestion and even less to assist in the process of
absorption.
Moreover,
blood flow to the skin, as with visceral organs, may be progressively
comprised with increasing demands for oxygen transport to the muscles.
A person with a weak heart will actually stop the skin blood flow
in an effort to supply sufficient blood flow to actively working
muscles.
In
comparison with other exercises that have a person planting his
feet on the ground (except swimming), rebounding aerobics provides
a more favorable advantage to the exerciser. That is, the effects
of gravity are eliminated and central circulatory changes are less.8
Learn more quickly than others, especially after they come off the
rebounding apparatus. They show significantly better results on
more difficult puzzles, possibly because of improved memory and
learning ability.
Finally,
rebounding aerobics offers spiritual inspiration and peace of mind
with the universe. You will notice a reduction in your nervousness,
aggression, emotional instability, self criticism and self doubt,
inhibition, irritability, and depression.
You'll
witness an increase in your sense of freedom,self assuredness and
self confidence, good humor, positive thinking, staying power and
efficiency, sociability,liveliness, tolerance in frustrating situations,
harmony with others, respect for others, cordiality, friendliness,effectiveness
in persuading others, and an inner contentment.
For
those who must confront their addiction to tranquilizers, stimulants,
and other drugs, rebounding aerobics provides part of the antidote
to removing them from one's lifestyle. It does this by improving
the sense of well being, strengthening mental health and thereby
directly removing the need for drugs
