Electrostimulation is a technique that uses electrical impulses to provoke muscle contractions. These impulses are generated by a device and transmitted through electrodes placed on the skin, near the muscles that are to be stimulated. This method has become very popular in recent years, both in the fields of physical rehabilitation, sports training, aesthetics, and physiotherapy.

The Electrostimulation is based on the same theory as the human body’s nervous system. When we decide to move a muscle, our brain sends electrical signals through the nervous system to make the muscles contract. Electrical muscle stimulation simulates this natural process by sending electrical impulses directly to the muscles, causing muscle contraction without the need for conscious effort by the individual. Furthermore, electrical muscle stimulation reaches all layers of muscles, activating type I and type II muscle fibers.




In physiotherapy and rehabilitation, it is commonly used to assist patients in recovering from surgeries or injuries. In the sports realm, many professional athletes use EMS to enhance their performance, increase strength, and accelerate muscle recovery after intense workouts. Even in the world of fitness and aesthetics, electrical muscle stimulation is becoming a popular tool for efficiently increasing muscle mass, aiding in weight loss, and toning the skin. In addition to achieving significant improvements in strength, endurance, and recovery, making it a valuable choice for a wide range of individuals.

Discovered by Luigi Galvani in 1791 and refined and utilized across various fields to this day.

The use of EMS in sports began gaining traction in the 1970s and 1980s. Athletes and coaches started experimenting with EMS to enhance training routines and speed up recovery processes. The Soviet Union was one of the first countries to use EMS for its athletes in various disciplines. Its success in international competitions brought attention to the potential benefits of EMS, leading to its widespread adoption worldwide.



You’ve probably heard or read these acronyms related to electrostimulation before. EMS stands for Electrical Muscle Stimulation or Electromyostimulation, primarily referring to the application of electrical impulses to train and work your muscles, which applies electric impulses to the muscle core (where the muscle, when shortened, has greater mass), triggering contraction. There are other types of impulses such as TENS, which are characterized by sending impulses with lower frequencies to the sensory fibers of the muscle and are used to treat pathologies and improve their recovery.

If you’re interested in learning more about the differences, we recommend: TENS and EMS: What are the differences?

Another term widely used in the scientific and EMS training field is WB-EMS (Whole Body Electro Muscle Stimulation), which applies this technique comprehensively throughout the body, thereby activating more muscle groups simultaneously and enhancing the results of conventional training. This has been achieved as technology advanced and EMS devices became more sophisticated and accessible. The development of portable WB-EMS units in the late 20th century marked a significant milestone, allowing athletes and fitness enthusiasts to use WB-EMS outside clinical settings.

running training with electrostimulation


The functioning principle of an electrical muscle stimulator is based on electrostimulation, which uses electrical current impulses to achieve desired goals. When the device is in use, it sends electrical impulses through electrodes that penetrate the skin and reach the nerves controlling the muscles. These impulses mimic the natural electrical signals that the brain sends to the muscles to cause contraction. As a result, the muscles contract and relax in a controlled manner.

Electrical muscle stimulators typically feature a control unit that allows adjustment of various parameters such as intensity, frequency, and duration of the electrical impulses. This adjustability is crucial for tailoring the treatment according to the specific needs and goals of the user, whether to increase muscle strength, improve endurance, facilitate recovery from an injury, or simply for relaxation.

Types of Electostimulators


There are several types of electrical muscle stimulators, designed for different uses and needs:

  • Rehabilitation Electrical Muscle Stimulators: Mainly used in physiotherapy to aid in the recovery from injuries and surgeries.
  • Sports Electrical Muscle Stimulators: Designed for athletes and active individuals looking to enhance physical performance and accelerate post-workout recovery.
  • Aesthetic Use Electrical Muscle Stimulators: Focused on muscle toning, cellulite reduction, and overall physical appearance improvement.

In the case of equipment manufactured by i-motion group, electrostimulation is performed by an electrostimulation suit.</a> This electrostimulation vest stands out as the most advanced and effective option on the market. It is a suit made of high-quality neoprene that is fully adjustable to cover more than 300 muscles simultaneously.

This innovative equipment is designed to provide whole-body electrical muscle stimulation (WB-EMS), effectively targeting all muscle groups with its 22 fully adjustable medical electrodes, allowing simultaneous work on muscles of the abdomen, legs, arms, back, and buttocks, among others.

EMS weights exercise



Electrical Muscle Stimulation (EMS) offers a wide range of benefits that make it a valuable tool for athletes and individuals looking to improve their overall health and well-being.

One of the main advantages is its ability to target specific muscle groups. This can be particularly beneficial for athletes aiming to enhance performance in specific areas or individuals looking to improve their physique in targeted zones.

Another significant benefit is the potential to accelerate recovery. EMS can stimulate blood flow to injured areas, promoting faster healing. This makes it a valuable tool in physiotherapy and rehabilitation.

EMS also offers advantages in terms of time efficiency. A short, intense EMS session of 20 minutes can produce results comparable to a lengthy gym session. This is a great option for those with limited time for exercise.

Next, we will detail the primary benefits of EMS and how it can contribute to enhancing the quality of life for its users.

fuerza y resistencia con electroestimulación muscular


One of the standout benefits of electrical muscle stimulation (EMS) is its ability to improve muscular strength and endurance. By triggering intense and controlled muscle contractions, EMS stimulates muscle fibers more deeply than conventional exercise. This results in significant gains in muscle strength and enhanced endurance, which is particularly beneficial for athletes and active individuals.



EMS has significant potential to promote hypertrophy and muscle mass gain. The electrical impulses generated by EMS cause intense and repetitive muscle contractions, similar to those achieved during weightlifting. By incorporating EMS sessions into a training program, greater hypertrophy can be achieved due to deep stimulation of muscle fibers.


For those interested in body aesthetics, EMS can help reduce cellulite and improve skin tone. By enhancing blood and lymphatic circulation, electrostimulation promotes the elimination of toxins and retained fluids, resulting in smoother and firmer skin. Additionally, intense muscle contraction helps tone and sculpt the body, leading to a more defined and attractive appearance.

Rehabilitation and recovery with electrostimulation


Electrical muscle stimulation is an invaluable tool in the field of rehabilitation. It helps accelerate recovery from injuries and surgeries by maintaining muscle mass and mobility. Additionally, EMS can reduce pain and inflammation, facilitating a faster and more efficient recovery process. Physiotherapists and healthcare professionals use EMS to treat various muscular and joint conditions, improving patients’ quality of life.


EMS can also contribute to increased metabolism and calorie burning. Repetitive and controlled muscle contractions increase the body’s energy demand, which can result in higher calorie expenditure during and after EMS sessions. This is particularly beneficial for those looking to lose weight and improve body composition.

improving circulation and relieving stress with electrostimulation


Improved blood circulation is another significant benefit of electrical muscle stimulation. By promoting better blood flow, EMS helps oxygenate tissues and eliminate toxins, which can improve overall body health. Additionally, EMS sessions can have a relaxing effect, helping to reduce stress and muscular tension. This can contribute to better mood and general well-being.


Although muscle electrostimulation (EMS); offers numerous benefits, it is important to note that it is not suitable for everyone. There are very few contraindications and situations where the use of EMS may not be safe or advisable. Below are the main contraindications of EMS to ensure safe and effective use.

People with cardiovascular problems, such as heart disease, pacemakers or implanted defibrillators should avoid using EMS. The electrical impulses can interfere with the functioning of these devices and aggravate existing heart problems. It is always advisable to consult a physician before using EMS if you have a history of cardiovascular problems.

People with metal prostheses or orthopedic devices in the area of EMS application should be careful, as the electrical impulses may cause discomfort or interfere with the functioning of these devices. It is important to consult a specialist before using EMS if you have metal prostheses.

EMS is not recommended for people who are receiving treatment for cancer or who have tumors in the area of application. Electrical impulses can influence the behavior of cancer cells and should not be used without the approval of an oncologist. It should be used with caution and under the supervision of a professional.

Individuals with certain neurological disorders that affect sensation or muscle control, such as multiple sclerosis or peripheral neuropathy, should use caution when using EMS. In some cases, EMS may not be appropriate and could aggravate symptoms. A thorough medical evaluation is recommended to determine the safety of use in these conditions.

People with skin hypersensitivity or allergies to electrode materials should avoid using EMS or seek alternatives that are compatible with their skin. EMS may cause irritation, redness or allergic reactions in people with sensitive skin.

EMS is not recommended for people with epilepsy. The electrical impulses may cause seizures or epileptic seizures in people with this condition. It is crucial that individuals with epilepsy seek the advice of a healthcare professional before considering the use of muscle electrostimulation.

EMS is contraindicated in individuals with bleeding disorders or coagulation problems, as the electrical impulses may increase the risk of bleeding in the affected areas. It is crucial to seek medical advice before using EMS in these cases.

People with infections, acute inflammation, open wounds or severe skin conditions should avoid using EMS on the affected areas. Applying electrical pulses to infected areas or wounds can worsen the condition and delay healing. It is essential to allow these areas to heal completely before using electrostimulation.

The use of electrostimulation is contraindicated during pregnancy, especially in the abdominal and lumbar area. The electrical impulses can affect the development of the fetus and its use is not recommended during this period. Pregnant women should wait until after delivery to use EMS, and always under the supervision of a health professional.

Although electrical muscle stimulation (EMS) offers numerous benefits, it is crucial to be aware of the contraindications and use it with caution. Our entire range is completely safe as all our equipment carries the most prestigious international certifications. Additionally, at i-motion group, we provide you with all the necessary training on our equipment to become a professional in EMS.

It’s also important to note that aside from contraindications, there are many myths about electrical stimulation that are widespread. Below, we provide you with 6 myths about electrostimulation that you should be aware of.


EMS training differs from traditional workouts in several aspects. The most notable difference is its ability to target specific muscles, which can be challenging with conventional exercises. This makes it an excellent choice for recruiting greater fiber activation and thereby maximizing effectiveness.

Integral EMS training, also known as WB-EMS, involves active exercises using an EMS vest equipped with electrodes that target each muscle group through electrical impulses. In this setup, personal trainers or operators control all training parameters—frequency, pulse, intensity, ramp, contraction time, and rest—via a device such as a tablet, mobile phone, or PC.

EMS training is ideal for individuals with sedentary lifestyles, those who haven’t exercised for a long time, or older adults because it doesn’t require excessive weight, thus avoiding stress or joint injuries.

Another key difference is the intensity of the training. With EMS, high-intensity workouts can be achieved in less time, making it a great option for those with busy schedules.

Finally, EMS training can be tailored to individual needs, whether you’re looking to improve performance or recovering from an injury, EMS can be adjusted to meet your goals.