What is the normal
functioning of our muscles?
As soon as we plan an activity, a stimulus is sent to the
brain and brain sends an impulse to contract the muscle fiber. As the muscle contracts, a wave rolls through
it and a co ordinate forceful movement takes place.
Single group of muscle fibers get easily exhausted, hence
body has adopted strategies to provide a longer endurance. The energy efficient
‘red’ or slow twitch fibers are used first during a voluntary contraction, but
they are not very powerful. After this, strong ‘white’ or fast twitch fibers
take over to handle the overload. There are some white fibers are left by the
muscle to act as reserve to meet more demands hence, it is relatively
impossible to willingly contract all fibers simultaneously.
Basic principles of
EMS
The electric muscle stimulation machine works directly on
the muscles and is capable of firing all the motor neurons simultaneously which
was not possible with voluntary efforts. It works directly on the muscle group,
creates an uncoordinated and primarily an isometric contraction.
With restoration of body’s energy conservation system on one
hand, the EMS also activates muscle fibers at a high intensity which creates a
‘spill over’ and stimulates remaining fibers also apart from fully contracted
ones.
This induces a supra maximal impulse conduction and leads to
conversion of intermediate fibers into white fibers, thus allowing an athlete
to experience a diverse work out stimulus which is not attainable by any other
means.
Uses of EMS in sports
training
Enhancement of
maximum strength
When compared to voluntary muscle contractions, the muscle
tension generated in a maximal EMS contraction was found to be 30% higher.
Effective means of
recovery
Establishing the
fitness fundamentals first, the EMS should be used as a strength development
tool for long term sustenance of career.
Rehabilitation tool
For the rehabilitation, the EMS should be used synergistically
with increasing weights to the muscle groups.
Motor learning and
muscle firing tool
Muscle groups like quadriceps, hamstrings, glutei and
erector spinae are important for strong working of hip and knee. Similarly foot
muscles can be stimulated in cases of weakening or in conditions like flat
foot.
Can body builders be
benefitted?
Uses of EMS as a body building application is something many
people haven’t heard of. Trained coaches are now using portable electric muscle stimulator to increase the muscle density in body builders. This is just like
breaking through the barrier for those who want a ‘puffy’ muscle. It also
temporarily burns off a layer of fat in small areas which restores after a
while. So, even lean people competing for body building can use it prior to the
event and cover up to keep warm till final event.
Tips for maximal
benefits
- Recruit large muscle groups.
- Do it before going to bed and after two hours of activity.
- Do not use creams, gels before its application.
- Always elevate the area under treatment.
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