Electric muscle trainers: harm and benefit. What you need to know about electrical muscle stimulation

Electrical muscle stimulation - description of the procedure and review of the most popular devices: Stimul 1, MIORYTHM-040-M2, Myovolna

Electrical muscle stimulation was invented in the mid-19th century in France. It is usually used in physiotherapy and rehabilitation therapy to restore the functioning of tissues, organs and systems, including the nervous system.

This method has an effect due to pulsed current, due to which there is directed excitation and contraction of any area of ​​the muscles, and a decrease in the trophic function of nerve fibers.

The effect of current on the muscle tissue of the body

Electrical stimulation actively affects the body through pulses of different durations - from 0.5 to 300 ms, with a current strength of up to 5 mA (on the face), up to 100 mA (on the body) and a frequency of 10-150 Hz, which operate intermittently.

During the procedure, the person does not move, but this effect is identical to the normal work of the muscles during their activity.

The current, passing through the tissue, excites the cells and stimulates the active work of the muscles, and during pauses it relaxes.

Thanks to this rhythm of work, there is no irritating effect of current under the electrodes and the epidermis is not damaged due to prolonged electrical stimulation.

When an electrical current is applied to muscles or nerves, their bioactivity and the formation of spike responses are altered. The impulses provoke muscle contraction, which strengthens and activates them.

It’s also good that if a muscle is overstrained, electrical stimulation relieves such tension well. This method has no analogues in the world; it forces the muscle to work at 100%.

Electrical stimulation of the back muscles helps patients with a stiff neck, lumbar region, diseased or curved spine are inherent painful sensations, loss of sensitivity, weakened muscles and more.

This procedure is also necessary at the rehabilitation stage after spinal surgery; it will help strengthen the muscular corset of the spine.

If you choose the right one, electrical stimulation of the leg muscles will help restore the functioning of many functions:

• biceps femoris muscle – restores flexion of the knee joint;
• electrical stimulation calf muscle, helps restore foot flexion function;
• peronalis muscle – dorsiflexion and abduction of the foot;
• pulsed currents directed to the rectus femoris muscle improve the mobility of the segment, as well as knee extension.

Thanks to myostimulation, it is possible to reach muscles located very deeply, which are difficult to load under normal circumstances.

For example, electrical stimulation of the thigh muscles helps actively fight osteoarthritis, including helping to recover after joint replacement surgery.

Current is also used for cosmetic purposes, for face lifting. The areas of the face and neck are quite difficult to train with regular exercises, but electrical stimulation of the facial muscles helps strengthen them and increase microcirculation in them.

The procedure improves blood supply and the functioning of a complex of metabolic and trophic processes. This includes activation of the systems and cells of the cerebral cortex.

The muscles are stimulated, the synthesis of nucleic acids occurs, including RNA, which delays the process of atrophy and sclerotic development in them.

During the procedure, the influence occurs directly on the muscle and through its motor nerve. Electrical stimulation accelerates oxygen utilization and reduces energy costs for contraction. After physical activity Lactic acid accumulates, and the influence of the current removes it from the muscles, relieving pain.

Electrical stimulation of arm muscles

Electrical stimulation of the arm muscles restores the following functions:

1. Influence at deltoid muscle, helps to resume the work of shoulder abduction to the side, back and forward;
2. extensors of the hand and fingers, restore their extension function;
3. electrodes located on the triceps muscle affect the extension of the arm at the elbow joint;
4. impact on the biceps muscle, will help bend the arm at the elbow joint;
5. points on the flexors of the hand and fingers will help bend them.

How does the procedure work?

• Before electrical stimulation, the body is examined and spastic muscles are found, the degree of increase in muscle tone is determined and the presence of fibrous changes is recognized;
• If the procedure is intended for the face, then you need to remove makeup and degrease the skin;
• The specialist can then apply a mask or conductive gel to the skin as well as the electrodes. This depends on the device that supplies the current, as well as on the conductivity of the current by the body;
• Electrodes are applied to those areas where motor points are located - hips, limbs, abdomen, chest, back, face. Stationary electrodes are fixed or the skin is treated with movable electrodes;
• It is better to carry out such a procedure in a medical center, where a specialist can install the electrodes exactly in the places where they need to be. He will also be able to select the current strength that corresponds to the degree of muscle damage and suits the individual sensitivity of the patient;
• Having selected the required current strength, frequency and duration, a session of electrical stimulation is carried out;
• Remove the electrodes and cleanse the skin of the gel.

Session duration

The duration of the procedure is determined by the doctor, depending on the symptoms, the nature of the process, etc., usually it does not exceed 40 minutes.

The duration of treatment is usually from 15 to 30 sessions, they are carried out every day or every other day.

The duration of the facial procedure can last from 10 to 20 sessions. The procedure is done every couple of days, and courses are carried out about once a year.

The muscle or nerve is stimulated for 2-3 minutes, and then a break of 10 minutes is taken. The time frame for achieving the required result depends on the disease, characteristics of the body, condition, and the presence of extra pounds.

Electrical stimulation at home

Today you can hear about portable devices everywhere. Some can be powered by electricity, while others can be battery-powered.

You can use such devices to maintain tone. Their power is low and they cannot have a full impact.

Electrical stimulation at home will help relieve fatigue after a hard day, tighten some areas of the body, relieve or reduce pain. But such a device will not help overcome illnesses or correct the condition of the muscles.

You can also be treated with this drug at home, after being prescribed and taught by a doctor.

Devices for electrical stimulation

All devices have electrodes that are attached to the body. The device has a main unit in which a current of a certain strength and frequency is generated. Each muscle group has its own mode of operation.

Devices are classified into professional ones, which are used in clinics, beauty salons, and low-power ones, for home use.

To restore muscles, sinusoidal currents of high frequencies are used, which are modulated by low frequencies. These include devices of the “Amplipulse-4, 5” type, which has a wide range of treatments, and the “Stimul-1” type, designed to stimulate such muscles.

If the electrical excitability of the muscles is reduced due to degeneration or disease of the motor nerve, stimulation is carried out with the same currents, only they are delivered in a straightened mode. Here the electrodes on the motor point are connected to the negative pole. Such currents are produced by the devices “UEI-1” and “Neuropulse”.

Other devices for electrical muscle stimulation: “Movolna”, “Diagnostim”, “NET”, “MIORYTHM-040-M2”, “TUR-RS”, “Stersodnator”, “Tonus-1” and others.

Stimulus 1

This device is intended for the complex treatment of injuries and diseases of the musculoskeletal system, various paralysis, cuts, poor posture, scoliosis, flat feet, for strengthening muscles, eliminating fat layers, and during intense physical activity.

This device is used in clinics and various medical institutions.

The Stimul-1 device generates radio pulses in continuous sending mode. The amplitude of the messages is regulated and its period of rise and fall is adjusted.

The mechanism of action consists of transistors and microcircuits. The kit includes electrodes of various shapes made of hardened carbon fabric, electrical holders and other accessories. The device is operated at air temperatures from +10 to +35ºС and at ambient humidity up to 80%, at a temperature of +20ºС.

Characteristics of the Stimul-1 device

Myovolna

The muscles are stimulated with this device to replenish the deficiency of nerve impulses, increase blood supply to tissues and organs, suppress pain pulsation and improve the functioning of the lymphatic system.

During electrical stimulation, impulses from nerve endings are transmitted to muscles and cause them to contract. Blood and lymph flow improves, metabolism is stimulated. The device is also used to tighten facial muscles.

“Myovolna” provides a mode for moving the electrical stimulation zone during stable parameters stimulating impulses.

Thanks to this, sequential stimulation of different tissue areas is carried out along the path of innervation - the direction of blood flow and lymph circulation.

MIORYTHM-040-M2

This drug is used in the medical, cosmetic and sports fields. "MIORHYTHM-040-M2" has an electrical stimulator with a separate power supply and a set of accessories.

Very vulgar about myostimulators.

1. The key word is not electrical stimulator, but myostimulator (muscle stimulator)

2. The topic was first thought about and developed by military doctors back in the USSR. Soon after the war.
They worked for the wounded who lay in bed for a long time. Later - for submariners, astronauts - everyone who moves little and loses muscle tone. Even later for athletes to international sports olympiads where achievements are important.

3. With perestroika, all developments went to the west and southeast, where they received a rebirth as consumer goods. By that time, cheap semiconductors had appeared that could generate short pulses without problems. There was a problem with the generation of short pulses - then it could only be radio tubes. Then there were queues for TVs.
There was no need to talk about myostimulants as consumer goods.

4. The idea of ​​electrically stimulating muscles with short pulses turned out to be fruitful.
An impulse or a train of short impulses - 100-500 μs (microseconds), followed rarely - 1-400 times per second leads to a short-term displacement of ions near the nerve endings - myoneurones, and this leads to contraction of muscle fibers.

5. The trick is that the average current value in pulse mode is insignificant. This allows you to increase the pulse amplitude to 100 mA, i.e. create an electric field of noticeable volume in the body and force muscles remote from the surface of the body to contract. It should be recalled that a horse is killed by an AVERAGE current of 30 mA (milliamps), and here in a pulse it is up to 180 mA, but the average value is much less.

5a. It is useful to remind everyone who taught and has long forgotten what an electric field is. This is not a field where cows graze. This is the space in which charged particles begin to move.
According to this criterion, all substances found in nature are divided into conductors - they contain charged particles and dielectrics - substances in which there are practically no charges.
In email The field practically does not move anything inside the dielectrics.

A person with his bones, meat, fat and liquids is a conductor. It is saturated with charged particles - ions of sodium, potassium, iron, etc. Under the influence of impulses that create a short time email field in the human body, the ions begin to move, but immediately return to their place because The impulses are bipolar and short. This displacement of charged particles is enough to cause muscle fiber contraction.

The MYONEURON reacts - a nerve cell attached to a muscle fiber. It’s as if she receives an impulse from the brain. In fact, its impulse is a reaction to a short-term displacement of charged particles near the myoneuron itself. It’s just the way it is - charges interact with charges. Likely charged things repel, oppositely charged ones attract. This is how the impulse penetrates the myoneuron and causes the muscle fiber to which it is attached to contract.

6. Not everything is in a decrepit body muscle fibers are being reduced. Not every myoneuron associated with a muscle fiber conducts an impulse from the central nervous system. There are many reasons for this.
And here is a powerful third-party source of a pulsed electric field - all myoneurones that find themselves in the electric field will literally jerk their muscle fibers. The entire muscle will begin to contract, the blood flow will also change, and fat and protein deposits will be pressed away from the moving muscles.
The general feeling is ease in controlling the body as after a workout and no fatigue - lactic acid poisoning.

7. Muscle contractions occur with virtually no release of lactic acid, which poisons the muscles. During normal training, lactic acid must be removed from the muscles. It is muscle poisoning that limits the duration of certain body movements. And here you can shake the muscle faster. In 20 minutes it’s like running 20 km.

It is clear that this can be used to train athletes, which is done while keeping the “training program” in great secrecy before important competitions.

8. Muscle mass noticeably responds to myostimulation with growth. The quality of life increases - in old age you can live in a young body. Unfortunately, the effect of such training lasts 1-2 days. To strengthen it, you either need to move more or regularly connect yourself to a myostimulator. For obese people with excess weight over 10 kg - change the diet and do not wait to lose weight faster than 4 weeks. The fat comes back quickly.

9. There are contraindications, but they are few.
There are no side effects from long-term (years) myostimulation.
Everything, of course, should be taken in moderation, and not to the point of burns at the points of contact with the electrodes.
General recommendations - three days a week for 20 minutes at a level of comfortable muscle tremor - is quite enough.

10. It is important for old people that the muscles of the spine and skeleton can be developed. Get rid of joint pain because... myostimulation naturally eliminates pain from vertebral hernia and pinched nerve fibers almost everywhere where applicators that supply pulsed currents are placed. Also with pain in the hip joints, knee, foot, elbows and neck.

11. The electric field reaches deep, even to the muscles of the stomach, which allows you to change its tone for the better. Plus improved blood flow. The body corrects itself, bringing the necessary components to sick sore spots.

12. A few words about prices.
Actually, the price prompted me to do a search for information.
For 25 years I have suffered from my wife’s character. Her ailments, stomach, head - we share all this together.
This helped her. She dared to pay 95,000 rubles for a Korean device, which, in my opinion as an electronics engineer, is not worth that kind of money. Simple pulse generators, and if there is a processor, i.e. a computer that controls generators according to a program that can be changed - all the same - no more expensive than a mobile phone, and here are these numbers.

It turned out that there really are inexpensive muscle stimulators from 450 rubles - toys. Make cubes on your stomach. Medium - 1500-3000 rubles - up to 50 programs for different occasions. And there are expensive ones up to 120,000 rubles. professional multi-program and multi-channel. With their help you can heal the entire village. However, the village can be treated with cheaper models for 3-9 thousand rubles.

Expensive models are often focused on cosmetology. Small electrodes. Lots of channels.
It’s worth remembering that there are about 200 muscles on the face. People do not have such a simple interface to communicate with each other through facial expressions. It is important to tighten these muscles, they also become weaker, and the skin becomes thinner.
Remove fat from the face, strengthen muscles, smooth out wrinkles. Ultrasound is used with skin nourishing creams to prolong the effects. It is clear that these models will exploit women's needs for beauty and will be much more expensive.

Keywords for searching - where, what and from whom to buy on the Internet - are on the website www.allmio.ru

The EM41 model (Germans) turned out to be quite good. Powered by 3 AAA batteries. 50 programs.
The size of a pack of cigarettes. Good for hiking - weight 108g - 3 modes (pain relief, muscle training, massage)

In the "pain relief" mode there are subroutines with short pulses that are used for electrosleep. Sleep without sleeping pills is guaranteed. Calm your tired legs and fall asleep - you won’t remember when - the device turns off automatically.

A significant drawback is that Velcro electrodes become old quickly. You need to have spare ones.
Or make it yourself from foil. Glue the foil to thin rubber, and do not remove the Velcro itself to the foil. Lubricate the foil with gel before applying the electrodes to the body.

You will get covered in the gel, but the electrodes will last a long time. There is room for creativity here,
for example, you can create an individual “electric chair” with contact electrodes
for different parts of the body. A suitable gel is sold in a network of medical equipment stores, for example, for ultrasound.
Take a more viscous one.

Expand discussion thread

In this article we will tell you everything about the electrical stimulator for building muscle mass, electric massager and electrophoresis in one device.

In 1990-1995, a big wave of bodybuilding swept through our country. Rocking chairs, which were usually located in the basements of houses, became widespread. Those who wanted to increase their muscle mass first rewrote and redrew, and then, with the spread of “bourgeois” copying technology, they photocopied notes and drawings describing the methods of building muscle mass by the then famous teacher of bodybuilders - Joe Weider. This wave did not pass me by either. In one of the cooperatives in Kyiv, I wrote out by cash on delivery the diagram and description of the “Electric stimulator for muscle building". I assembled this device and used it for some time instead of heavy sports equipment.

The remarkable property of this device is that with its help you can not only “pump up” muscles, but also do electromassage. This is achieved by setting the operating mode to short pulses. A person relaxes his body, while enjoying it - the muscles “themselves” twitch involuntarily. Bruises, sprains and dislocations when using an electrical stimulator heal faster due to the acceleration of metabolic processes in skin cells and muscle tissue.

The electrical stimulator allows burn subcutaneous fat.

Another property of the electrical stimulator is that it can be used in a physiotherapy room - work in a mode that allows you to perform a medical procedure - electrophoresis.

In sports practice, the use of electrical stimulation is recommended for:

• increase muscle strength (40-50%);
• increasing muscle volume (5-10%);
• improvements speed qualities/up to 29%);
• reduction of the subcutaneous fat layer (10-15%);
• increasing muscle performance;
• increasing the elasticity of muscles and ligaments.

Digital data are given for a three-week course of electrical stimulation. It is advisable to use electrical stimulation to improve the above qualities, both for beginners and experienced athletes. The most pronounced positive effect of electrical stimulation is in bodybuilding, weightlifting, gymnastics, various types of martial arts, etc.

Main purpose of the device

A single-channel stimulator of the human neuromuscular system is intended for physiotherapeutic effects with pulse-modulated currents in health and sports practice, as a means of increasing functional physical sports performance, and for the purpose of preventing and relieving pain syndromes.

The output stimulating pulses (SI) of the device are rectangular current oscillations of adjustable frequency (1-10 kHz) modulated by an exponential envelope. Envelope repetition frequency 7-300 Hz. The indicated SIs are formed into bursts of pulses, adjustable in duration: 0.5-10 sec or 0.05-1 Hz.

Specifications

• In the continuous generation mode (toggle switches “AM”, “FM” - position “0”) a continuous series of SIs is formed, the amplitude of which is regulated by resistor R2 “Output Level”, and the repetition rate by resistor R1 “Pulse Frequency”.
• In the amplitude modulation mode (the “AM” toggle switch is on), automatic alternation of SI series and pauses. The duration of the series is regulated by R3 “Modulation frequency”.
• In the frequency modulation mode (“FM” is on), a continuous series of SIs is generated, automatically changing in frequency from the value set by the “Pulse frequency” regulator to the minimum repetition rate of SIs.
• The SI amplitude regulation is smooth, from (0-3) V to (33- +3) V (with a power source voltage of (9- + 0.25 V).
• The SI repetition frequency is smoothly adjusted from (5.8) Hz to (355-+89) Hz.
• Regulation of the frequency of the modulating signal in the range from (0.05-+0.01) Hz to (0.9-+0.22) Hz (or, respectively, from 3 to 120 modulations / min).
• The ratio of the duration of the modulation pulse to the pause is no more than 1.5:1.
• The pulse duration (ti) is (0.5-+0.08) ms.
• Average power consumption (at power supply voltage (9-+0.25) V, SI amplitude (33-+3) V and connected load equivalent (1-+0.1) kOhm) does not exceed (1.2-+0 ,12)W

The schematic diagram of the electrical stimulator is shown in the figure below.

The stimulator consists of:

Generator of stimulating pulses on elements DD1.1, DD1.2, VD1, VD2, VT3, C1, R1...R7 and resistor R1 “Pulse frequency”;

Modulation generator using elements DD1.3, DD1.4, VT12, SZ, C4, R14…R16, R18…R21, R24 and resistor R3 “Modulation frequency”;

Filling frequency generator on elements DD2.1, DD2.2, VD13, VD14, VT15...VT17, C5, R22, R23, R25...R30, VT19, VT20 and resistor R4 “Filling frequency”;

Power amplifier based on elements VT18, VT21, VT22, R31...R35, C6, C7, transformer TV1, VD23;

Stabilizer on elements VT24, VT25, R36...R38 and LED H3;

Attenuator and pulse shaper on elements VT5, VT6, VD7...VD11, R10...R13, C2, R39 and resistor R2 “Output level”;

Display units on elements DD2.3, R8 and LED H1; VT4, R9 and pointer device PA1 (output signal setting level);

DD2.4, R17 and LED H2 (modulation frequency), LED NC (power supply voltage control).

The signal generators are assembled according to traditional circuits and do not require a separate description.

Electrical stimulator parts list

DD1, DD2 - K561LA7

VT3, VT4, VT17, VT18, VT24, VT25 - KT315G

VT5, VT21 - KT361G

VT19, VT20 - KT972A

VT22 – KT827A VD1, VD2, VD7, VD8…VD14, VD23 – D223B

N1, N2, N3 - AL307BM Device RA1 - M4248 - 100 µA

C1 - 0.068 µF

C2 - 4.7 nF

SZ - 50.0 µF x 10 V

C4 - 10.0 x 10 V

C5 - 6.8 nF

C6 - 30 pF

C7 - 200.0 µF

Transformer: Armor core diameter - 28 mm (external), 12 mm (internal), height - 24 mm. Windings I, II - 27 turns PEL-0.3, III - 447 turns PEL-0.2 The beginning and end of the windings are shown in the diagram.

Resistors:

R1, R33 - 1 kOhm

R2, R9, R14, R22, R23, R24 - 24 kOhm

R3 - 5.6 kOhm

R4 - 56 kOhm

R5, R10 - 100 kOhm

R6 - 68 kOhm

R11, R16, R18, R34 - 10 kOhm

R13 - 75 kOhm

R15 - 4.3 kOhm

R20 - 6.8 kOhm

R19 - 51 kOhm

R21 - 20 kOhm

R25, R26, R28, R35 - 3.3 kOhm

R27, R30 - 6.2 kOhm

R29 - 1.8 kOhm

R31, R37 - 4.7 kOhm

R32 - 100 0m

R36 - 910 Ohm

R38 - 510 Ohm

R39 - 1 kOhm

Variable resistors:

R1 SPZ-4A - 10 kOhm

R2 SPZ-4A - 4.7 kOhm

R3, R4 SPZ-4A - 100 kOhm.

The stimulator is assembled in a case the size of a regular school notebook and approximately 5 centimeters in height. The body was soldered from foil PCB and painted with quick-drying enamel. For better adhesion of the enamel to copper foil, the body was prepared before painting: lightly treated with coarse sandpaper, then placed in a ferric chloride solution for 1 minute, then washed and dried. To reduce the size, I used a recording indicator from a cassette recorder as a PA1 device. Battery power makes the device safe from electric shock (in an unexpected situation during procedures, a person will not be able to tear off the electrodes attached to the body). A compartment was made for two square 4.5 volt batteries, but I did not put batteries in it (you can’t get enough of them), but a 9 volt step-down transformer with a diode bridge and a 470 uF capacitor. This does not meet safety requirements, but by complying with certain requirements, you can protect yourself by other measures - be “isolated” from heating systems, grounding, and large metal objects in the room.

Printed circuit board

• deltoid muscles 1;
• biceps 2;
• triceps 15;
• brachioradialis muscle 3;
• extensor radialis 14;
• trapezius muscle of the back 8;
• subscapularis muscle and latissimus muscle backs 9;
• big teres muscle 10;
• external oblique abdominal muscle 6;
• serratus anterior and rectus abdominis 5;
• average gluteal muscle, tensor muscle fascia lata, gluteus maximus muscle 11;
• sartorius and rectus femoris 7;
• biceps femoris 13;
• semitendinosus muscle;
• semimembranosus muscle;
• calf muscle 12.

ATTENTION! Subject to electrical stimulation pectoral muscles Not recommended. To prevent current flow through the heart area, electrodes should always be placed only on the left or right, top or lower parts body, but never on either side.

To avoid unpleasant sensations during electrical stimulation, it is necessary to ensure reliable contact between the electrode area and the skin. To do this, place 6-8-layer gauze pads soaked in a 5-10% solution of table salt under the electrodes. Best results gives powdered graphite with spindle oil (sour cream consistency).

1. Increased muscle strength and muscle size

To develop strength qualities, electrical stimulation of the muscle is carried out with the highest possible current (voltage), the value of which is individual and determined by personal sensations. There should be a feeling that the muscle is being torn. This effect is achieved in addition to increasing the signal amplitude, also by the duration of the effect. The muscle is brought to a state of complete fatigue by a series of messages: stimulation-relaxation. The duration of stimulation and relaxation is selected individually, observing the main criterion - rapid achievement of fatigue. Before starting the session, you should warm up all muscle groups. It is recommended to carry out training 1-2 times a day; with limited time, stimulation of the most important muscle groups is carried out. Electrical stimulation time for one muscle is up to 5 minutes.

ATTENTION: In the first days of classes, do not allow yourself to become overtired. The achieved results last for 3-4 months without continuing training.

2. Reduction of subcutaneous fat layer

Electrical stimulation allows you to reduce the thickness of the fat layer, activating metabolic processes throughout the body. For this purpose, stimulation is performed large groups muscles (gluteal, abdominals etc.). The amplitude of the output signal is set to a painless and maximum tolerated muscle contraction. Course - 20 daily sessions, observing fasting diet. Session up to 10 minutes for each muscle group. Electrical stimulation is also effective for emphasizing muscle relief.

3. Flexibility training

The use of electrical stimulation allows for effective stretching muscles and ligaments, which significantly reduces the time for mastering exercises that require flexibility (for example, “splits”). This area of ​​application of ES can be recommended to representatives various types martial arts To increase flexibility, electrodes are applied to those muscles whose “tension” does not allow performing a particular exercise (for example, the muscles of the back and front of the thigh when doing the splits). The signal amplitude is gradually increased from zero, the relaxation time should be equal to the stimulation time. You need to perform exercises that “stretch” the muscles and ligaments, the stretching of which determines the successful implementation, for example, of the same twine. The combination of exercise and electrical stimulation is very effective in developing flexibility. Work on each muscle for up to 5-10 minutes.

Rules for turning on and controlling the electrical stimulator

The “Output Level” knob should be moved to the far left position. Then, without connecting the electrodes, set the “Output Level” to maximum, switches AM to “1”, FM to “0”. In this case, the battery voltage indicator HL3 should light up; the HL2 modulation indicator lights up rhythmically; synchronously with it - the dial indicator deviates to the right. The HL1 pulse presence indicator should glow from low to moderate level (depending on the “Pulse frequency” knob).

Before starting the session, moisten the electrodes in a saline solution, securely attach the electrodes to the stimulated muscle, connect the wires coming from the electrodes to connectors X1 and X2 of the electrical stimulator. Turn on the electrical stimulator, use the amplitude regulator to gradually set the desired SI amplitude from zero, based on the training methodology and personal feelings. If tingling or burning occurs, press the electrodes harder against the muscles.

When performing electrical stimulation according to point 1, AM, FM is turned on, pulse repetition rate is 30-100 Hz, modulation frequency is 0.2-0.25 Hz (12-15 bursts per minute), filling frequency is 2-8 kHz. The optimal position of the adjustments is determined according to personal feelings, achieving the least discomfort. The rest is according to No. 1 of the Methodology.

For electrical stimulation according to point 2 of the Method: AM on, FM off, repetition rate 100-200 Hz, filling frequency 4-8 kHz, modulation frequency 0.5 Hz (30 bursts per minute).

When performing electrical stimulation according to clause 3, set the parameters according to clause 1 of the Methodology.

Nutrition

Electrical stimulation for the purpose of increasing muscle volume does not remove the athlete’s usual nutritional requirements for bodybuilding. Proper and balanced nutrition combined with electrical stimulation is the key to rapid muscle growth. The use of electrical stimulation to reduce the fat layer requires some dietary restrictions. Nutritional recommendations are not the scope of this manual; this issue is fairly well covered in sports and popular science literature.

Security measures

PROHIBITED:

— moving the electrodes during electrical stimulation without turning off the power of the device;

— break the electrical stimulator-electrode circuit during the session;

— start an electrical stimulation session without reducing the signal amplitude to zero;

- exercise in a state of extreme fatigue.

In terms of the method of protecting the patient from electrical voltage, the stimulator corresponds to class III and type BF according to GOST 12.2.025 - 76g.

There are no absolute contraindications to the use of electrical stimulation.

Electrical stimulation is relatively contraindicated in the following diseases: hemophilia, hereditary and familial diseases of the nervous system (progressive muscular dystrophy, myotonia, myasthenia gravis, amytrophic lateral sclerosis, epilepsy, syrigomyelia, multiple sclerosis (in the acute phase), syphilitic tabes, infectious chorea, all infectious and non-infectious diseases in the acute stage, fever, cerebrovascular disorders, severe forms of hypertension, skin diseases, rupture of muscles and ligaments, bone fractures. vocal cords, as airway closure may occur. Do not perform electrical stimulation of the abdominal and lumbar areas in pregnant women.

It should be borne in mind that electrical stimulation can suppress chronic pain, which is a symptom of a pathological process of unknown causes.

In all cases, the question of the advisability of electrical stimulation should be discussed with a medical specialist.