The leg angle of an average high school athlete
leg press exercise may varies from 250lbs effort possible
at 90 degrees, increasing to 550lbs at 135 degrees and still
improving to 900lbs at 180 degrees at full extension. Isokinetic
resistance is the only way to build maximum strength throughout
the full range of motion and making it possible to jump
quicker and maybe 4 to 10" higher.
Weights are limited to the maximum amount that
can be moved at the weakest angle, thus only the weakest
ranges are near maximally loaded, while the stronger ranges
never receives maximum muscle loading. Usually the resistance
is thrown ballistically through the stronger ranges. Because
of the muscle and skeleton structure of the body the most
common ranges of motion of exercises vary in each sport
and this knee exercises middle range is maybe twice as strong
as the beginning or ending of the exercise. Thus, for the
first time in exercise history, isokinetics allows the individual
to build maximum strength at every angle of the range of
Curls are another exercise which angles also has
been measured with a potentiometer, again illustrates the
need of variable resistance. Isokinetic exercise allows
individuals to work to a maximum at all ranges of the motion
and accommodating the fatigue factor as well maximizing
the total work load. As the individual increases leverage
with the exercise the isokinetic resistance mechanism automatically
increases the load to constantly challenge the skeletal
muscle system for further gains. With isotonic (weights
training) a weight is lifted for a specific number of repetitions
but the athlete is only getting a maximum exertion at the
end of the set and only lifting what can be moved through
the weakest zone thus no where near the total work load
that is achieved through using isokinetics.
When benching weights, one is limited to maybe
one half the iron that can be moved from the chest. One
develops this weak beginning range effectively with Isokinetic
resistance of the Mini-Gyms.
Isokinetic resistance provides advantages
not possible with weight training:
All athletes should train fast to be fast. We know
the development of the White Quick Twitch muscle fiber is
the key to jumping higher, and jumping quicker. We have
had many athletes of 5’6” exceed the rim of
a goal and dunk the ball within a matter of a few weeks.
This is because we provide maximum resistance at the beginning
of the exercise. And yet as one’s legs extend upward
to full 180 degrees one gets maximum resistance through
the full range of motion. This just not possible with weight
training, and when athletes do 25-30 reps in 30 second and
many reach 600-900 pounds of push in the last 2 inches of
the extended range of motion. We provide max resistance
at every point there for the full range of motion and with
each fatiguing rep.
The isokinetic Mini-Gyms allows athletes to exercise
at fast speeds and develop the white muscle fibers or “quick
twitch” fibers necessary for consistence in repetitive
moves with continued quickness and power. This isn’t
possible with slow speed isotonic weight training which
builds strength but not power because red muscle fiber “slow
twitch” is activated which is the endurance fibers.
With isokinetics the athletes who builds power which will
turn also develop strength so he improves at all levels.
With isokinetic Mini-Gym the athlete sets the speeds
at which they wish to work and that remains a constant resistance.
Every repetition is fully exerted to their maximum but no
more resistance is produced than the body can generate at
that moment minimizing the chances of injuries. Also the
body usually fluctuates from day to day in its power and
the Mini-Gym automatically will accommodate the changes
thus preventing overstressing on weaker days.
Isokinetic exercise allows the athlete to work
to a maximum at all ranges of the motion and accommodating
the fatigue factor as well maximizing the total work load.
As the athlete increases power, the resistance mechanism
automatically increases the load to constantly challenge
the skeletal muscle system for further gains. With isotonic
weight training, a weight is lifted for a specific number
of repetitions but the athlete is only getting a maximum
exertion at the end of the set and only lifting what can
be moved through the weak zone thus no where near the total
work load that is achieved through using isokinetics.
With isokinetics the athlete only exerts force
in the positive part of the exercise thus allowing the blood
vessels to dilate slightly during the return or negative
phase thus causing better blood flow to the muscle tissue
and bringing nutrients in and flushing the waste materials
out. The result is little to no muscle soreness from the
build up of lactic acid which is mostly removed.
Train in Less Time
With the isokinetic Mini-Gyms no weights need to be set
or removed. The resistance is automatically adjusted to
the force exerted and continued for every repetition and
set, therefore only short time periods of exercise are required
to get maximum effect per exercise. The only simple adjustment
necessary is if the athlete wants to work at a different
In Season Conditioning
This is necessary for injury protection and for continued
optimal performance throughout the season. Many of the exercises
can be performed at explosive fast speeds and if necessary
cut back one timed session per exercise. Mini-Gym isokinetic
program has all the benefits required for a safe, efficient
and effective workout for the athlete both in and off season.