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12-month warranty
Same day dispatch
Professionally endorsed

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Electrical Stimulation Machine: What It Is, the Types, and How It Works 

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An electrical stimulation machine or E-stim therapy is a treatment that delivers electrical currents to the body to achieve therapeutic or diagnostic effects. Accordingly, the most common electric stimulation is the Transcutaneous Electrical Nerve Stimulation (TENS). Others include Electrical Muscle Stimulation (EMS), Neuromuscular Electrical Stimulation (NMES), Functional Electrical Stimulation (FES), and Interferential Current (IFC). In particular, TENS therapy works by blocking the pain signals and triggering the release of endorphins.

Electrical stimulation devices have been used for various purposes. This includes pain relief, muscle strengthening, and injury recovery. They have become a go-to tool for athletes and individuals seeking quick results and effective treatment. However, with different types of machines available on the market, it is important to know the differences and how they work before using them. This article will present electrical stimulation parameters, its types, and how it works.

What is an Electrical Stimulation Machine?

An electrical stimulation machine is a medical device that sends controlled electrical impulses to targeted areas of the body. This action can elicit physiological responses. Accordingly, physical therapists, pain clinics, and professionals usually use stimulation for treatment. Also, individuals can utilise the device for physical therapy or pain management needs at home.

There are two main types of machines: wired and wireless. Wired units utilise physical wires to connect the device to the electrode pads. Hence, it provides a stable and reliable connection for consistent electric current delivery. Meanwhile, wireless devices employ advanced technology and eliminate the need for lead cables. This offers greater freedom of movement during therapy.

People can control the machine manually or to a smartphone via Bluetooth technology. Furthermore, these devices come with various features. Most units have adjustable settings for effective stimulation. Also, some models have pre-set programs designed to target a specific medical condition. Additionally, the best units have rechargeable batteries and multiple channels.

Conditions It Can Treat

  • Chronic conditions: persists over an extended period. This may include arthritis, fibromyalgia, neck, shoulder, and backaches.
  • Acute pain conditions: sudden and short-term discomfort. This may involve postoperative pain, sports injuries, primary dysmenorrhea, and labour pain.
  • Neuropathic pain: arises from nerve damage or dysfunction. The device is beneficial for treating diabetic neuropathies, sciatica, and nerve entrapment syndromes.
  • Musculoskeletal pain: it is a condition that affects the muscles, bones, and connective tissues. This may include ailments such as osteoarthritis, tendonitis, bursitis, and rheumatoid arthritis.
  • Muscle discomfort: the electrical stimulation device is valuable for managing muscle spasms and muscle tension.

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Types of Electrical Stimulation Machines

Electrical stimulation machines come in various types. Each device is designed to serve distinct therapeutic purposes. Firstly, TENS is a method of pain relief that delivers low-voltage electrical pulses. This helps to modulate pain signals and provide relief. Secondly, EMS devices are used to stimulate muscle contractions. This sends electrical signals to muscle groups. Hence, it can support muscle strengthening, rehabilitation, and performance enhancement.

Thirdly, NMES machines are geared toward neuromuscular re-education and rehabilitation. NMES can help individuals regain muscle strength following neurological conditions. Fourthly, FES devices activate weakened muscles in individuals with neurological impairments, such as spinal cord injury. FES can help restore functional movement and enhance motor control.

Furthermore, IFC units generate a low-frequency current that penetrates the skin more effectively. This makes them suitable for managing deep discomfort and promoting tissue healing. By intersecting two medium-frequency currents, IFC creates a therapeutic modulation effect. Hence, it offers a method of pain relief, muscle relaxation, and improved blood circulation.

A Closer Look at TENS

A TENS machine is a device that uses low-voltage electrical pulses to help relieve pain. The device has electrodes, which are sticky pads that attach to the skin. Accordingly, the electrodes are placed near the area of discomfort. When the machine is turned on, it produces gentle electrical currents. This electrical stimulation can stimulate different mechanisms in the body.

Additionally, TENS provides numerous benefits. Foremost, TENS is customisable. It allows users to modify the frequency, intensity, and duration of the electrical pulses. Moreover, it is non-invasive and drug-free. Hence, it does not require injections, incisions, surgical procedures, or the intake of medications.

How Does an Electrical Stimulation Machine Work?

How Does an Electrical Stimulation Machine Work?

Electrical stimulation machines, particularly TENS, work through several mechanisms. One of the primary ways TENS operates is by stimulating the release of endorphins. These are the natural chemicals of the body that act as natural painkillers. Accordingly, the electrical pulses from the device can trigger the production of endorphins. This mechanism creates a sense of well-being.

Moreover, the TENS machine works on the pain gate mechanism. According to this, the electrical currents from the device can effectively close the “pain gate” in the spinal cord. Hence, this can block the transmission of pain signals to the brain. This can lead to a reduction in the awareness or perception of pain, making it feel less intense.

TENS devices can also impact blood circulation in the body. The electrical stimulation from the machine is believed to prompt the dilation of blood vessels. Therefore, this can help deliver essential nutrients and oxygen to body tissues. Also, this can remove waste products. As a result, this activity can potentially aid in the healing process and reduce discomfort.

Potential Side Effects

One possible side effect is skin irritation at the site where the electrodes are placed. This can result in redness, itching, or a mild rash. Hence, it is essential to regularly check the skin for any signs of irritation. Some individuals may also experience muscle twitching during or after the therapy. This can occur if the electrical currents are too intense.

In rare cases, it can lead to an allergic reaction to the electrodes or gel used to attach the electrodes to the skin. Individuals who have a history of skin sensitivity or allergies should be mindful of any signs of an allergic reaction.

Conclusion

In conclusion, an electrical stimulation machine is a valuable tool in the field of therapy and rehabilitation. It is a device that sends electrical currents to elicit physiological responses. The units are available in wired and wireless forms with various features. Accordingly, there are various types of electrical stimulation devices. This includes EMS, NMES, FES, IFC, and the most popular TENS. TENS units deliver low-voltage electrical pulses to the body through electrodes placed on the skin.

Furthermore, electrical stimulation, particularly TENS, works in different mechanisms. Foremost, the electrical impulses can block the transmission of pain signals. Also, the pulses can trigger the release of endorphins and improve blood flow. With such actions, the device can treat conditions like fibromyalgia, postoperative pain, diabetic neuropathy, osteoarthritis, and muscle discomfort. However, knowing the potential side effects of using the machines is crucial for safety.

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