What is EMG biofeedback?

EMG biofeedback (electromyography biofeedback) makes the electrical activity of your muscles measurable and visible. A sensor measures muscle tension via surface electrodes and provides real-time feedback — helping you learn to specifically tense or relax muscles.

How does the eSense Muscle work?

The eSense Muscle measures muscle activity (EMG signal) via three surface electrodes and transmits data via Bluetooth to the free eSense app. The app visualizes muscle tension in real time and supports your training with feedback games.

What does an EMG biofeedback device measure?

The eSense Muscle measures surface electromyography (sEMG) - the electrical activity of muscles via skin electrodes. It displays muscle tension in microvolts for targeted biofeedback training.

What is the difference between Home and Pro Edition?

The Home Edition has a 1-channel sensor for one muscle group. The Pro Edition offers 2 channels for simultaneous measurement of two muscle groups, ideal for professional use and bilateral comparison.

What electrodes are needed for EMG biofeedback?

The eSense Muscle includes reusable velcro electrodes. Alternatively, standard adhesive electrodes with 2mm connector can be used. Each measurement requires 2 active electrodes plus 1 reference electrode.

eSense Muscle Home Edition – 1-channel EMG biofeedback sensor for home training

eSense Muscle EMG Sensor Application on Forearm

eSense Muscle Biofeedback Training Overview

Correct Electrode Placement for Muscle Training

EMG Biofeedback Electrode Application Example

Muscle Relaxation with EMG Biofeedback Training

Mindfield eSense Muscle Home – 1-Channel EMG Biofeedback Sensor for Muscle Training & Relaxation

The Mindfield eSense Muscle Home Edition is a 1-channel EMG biofeedback sensor that measures muscle activity via surface electrodes. Connected via Bluetooth to the free app, it enables targeted muscle training and relaxation — at home or on the go.

€499,00

incl. 19% VAT plus Shipping Costs

The Mindfield eSense Muscle Home Edition is a 1-channel EMG biofeedback sensor, primarily designed as a complementary device for clients of biofeedback practices already using the Pro Edition who want to enable supplementary home training. Web app access included. Mobile app, oscilloscope and raw-data export are reserved for the Pro Edition.

SKU: ESE-MSL-HOM Categories: eSense, Biofeedback Devices, Biofeedback Home Devices, Devices, EMG, Physiological Parameter Tags: Biofeedback, EMG, eSense

Please read briefly before ordering:
The Home Edition of the eSense Muscle is primarily designed as a complementary device for clients of biofeedback practices already using the Pro Edition. Please take a moment to check whether this edition fits your needs — you will find a comparison table and an explainer video further down this page. If you need raw-data export, oscilloscope or a mobile app (iOS/Android), the Pro Edition is the right choice.

Who is the Home Edition designed for?

The Home Edition is primarily aimed at clients of biofeedback practices who already work with the Pro Edition of their therapist and receive a streamlined device for supplementary home training. In physiotherapy practices it is often loaned to patients for home training.

It is also suitable for private users who want to perform basic muscle-function training, relaxation or basic rehabilitation exercises without a therapeutic context. For purely private use without a therapeutic framework, the Pro Edition is overspecified in most cases — the Home Edition fully covers basic training.

Home Edition vs. Pro Edition — What’s included?

Feature	Home Edition	Pro Edition
Channels	1	2
EMG band-pass filter	100–200 Hz (preset)	100–200 / 20–300 / 20–950 Hz (selectable)
Web app `esense.live`	✔︎ (reduced feature set)	✔︎ (full)
Mobile app iOS / Android	—	✔︎
Oscilloscope (real-time curve + drawing mode)	—	✔︎
Raw-data recording & export	—	✔︎
Contraction-helper tool	—	✔︎
1-channel animations & games	✔︎	✔︎
2-channel animations	—	✔︎
Target audience	Clients home training, private users	Therapists, trainers, practices
Price	EUR 499	EUR 1,990
Upgrade Home → Pro	any time, against price difference via [email protected]

Detailed feature differentiation in the Help Wiki: Pro vs. Home Edition.

Please watch before buying: What the Home Edition does and doesn’t

Note: The Mindfield long-version tutorial covers the full feature set of the eSense Muscle, including Pro-only features (oscilloscope, mobile app, raw-data export). If you need these, the Pro Edition is the right choice.

General information about EMG (electromyography) biofeedback training

The eSense Muscle is a cutting-edge device that can measure and train electromyographic biofeedback related to muscle activity. It transmits this data to your computer, smartphone, or tablet via Bluetooth® for real-time monitoring and analysis.

The human musculature plays an essential role in the body, not only for movement but also as a major energy consumer, accounting for approximately 70-80% of our body weight. Muscle contraction is reflected by electrical potential shifts along the fibers of striated muscles, which can be measured through surface electromyography (EMG) at the skin’s surface. This non-invasive method captures electrical activity in the form of summation potentials, resulting in an electromyogram.

Our transverse striated muscles, which are responsible for voluntary movements, are controlled by the somatic nervous system. Every intentional muscle contraction is visible in the electromyogram, making it a valuable tool in both training and rehabilitation settings. The device can track not only voluntary actions but also involuntary reactions, such as stress, emotional tension, or psychophysiological states, providing insight into overall muscle tone.

In recent years, EMG biofeedback has been extensively studied, with systematic reviews demonstrating its efficacy in various therapeutic applications. By using electromyographic biofeedback, individuals can gain greater control over their muscle activity, helping to reduce tension and improve muscle coordination. This makes the eSense EMG device ideal for professionals and individuals alike, offering precise biofeedback and ease of use in both clinical and personal settings.

Scope of delivery of the eSense (EMG Device) Muscle Home Edition for Biofeedback Training:

Mindfield® eSense Muscle Sensor incl. 1600mAh lithium polymer battery for approx. 12 hours of continuous operation
Clip to fixate the sensor unit at the clothing
Electrode cable set for connecting up to 3 electrodes for the use of the EMG device
USB-C charging cable and charger
Bluetooth® dongle for Windows, if your PC does not have Bluetooth® (please refer to the enclosed instructions)
50 pieces of EMG surface electrodes
50 pieces of alcohol swabs for cleaning the skin
eSense Muscle Web App from Mindfield, available at www.esense-muscle.com
Detailed instructions for effective biofeedback training.

Details Home Edition (EMG Device)

One channel is available (the scope of delivery of the Home Edition therefore only includes the accessories for a 1-channel training)
A bandpass of 100-200 Hz is preset
All 1-channel animations are available
All games are also available in the Home Edition (because generally all games are also playable with one channel)
On the highscore page all points from the games and animations are visible to the user
The eSense Muscle Web App is available (for Windows, Mac, Linux and limited on mobile devices)
The eSense Muscle Mobile App is NOT available, this is only part of the Pro Edition

Apple, iPhone, iPad, iPod touch are trademarks of Apple Inc., registered in the U.S. and other countries. | IOS is a trademark or registered trademark of Cisco in the U.S. and other countries and is used under licence. | Android is a trademark of Google LLC | The Bluetooth® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use of such marks by Mindfield Biosystems Ltd. is under license. Other trademarks and trade names are those of their respective owners.

Note on the following videos: These tutorials show the full feature set of the eSense Muscle including Pro-Edition features (oscilloscope, mobile app, raw-data export, 2-channel mode). For which features are included in the Home Edition, please refer to the comparison table above.

Tutorial Videos for eSense Muscle

Frequently Asked Questions about the eSense Muscle Home Edition

Do I need the Pro Edition if I want to export raw data?

Yes. Raw-data recording and raw-data export are exclusive to the Pro Edition. The Home Edition only stores session summaries in the web app, not full measurement raw data. If you need the full data stream for scientific evaluation, therapy documentation or your own analyses, the Pro Edition is the right choice.

Does the mobile app (iOS/Android) also work with the Home Edition?

No. The mobile app for iPhone, iPad and Android devices works exclusively with the Pro Edition — activation requires a Pro license code, which is only included with the purchase of a Pro Edition. With the Home Edition you work via the web app esense.live in your browser (desktop, laptop, tablet).

Can I upgrade from Home to Pro later?

Yes, an upgrade is possible at any time. You only pay the price difference between the Home and Pro Edition. Just send a short email to [email protected]; you will receive the Pro license code by email afterwards. Your existing hardware (sensor, electrode cables, felt pads) stays — you only unlock the extended software feature set.

What is NOT included in the Home Edition’s scope of delivery?

Not included: the mobile app (iOS/Android), the oscilloscope with long-term tracking and drawing mode, raw-data recording and export, the contraction-helper tool, the 2-channel mode with the associated 2-channel animations, and the freely selectable band-pass filters (20–300 Hz, 20–950 Hz). All these features are reserved for the Pro Edition.

Is the Home Edition sufficient for my physiotherapy practice?

For the actual therapeutic use in the practice we recommend the Pro Edition — it offers 2 channels, oscilloscope, raw-data documentation and the mobile app, which is required for therapeutic work. However, many practices also use the Home Edition additionally to give patients a streamlined device for supplementary home training.

Which filter options does the Home Edition offer?

The Home Edition is fixed on the preset band-pass filter 100–200 Hz. This filter range is the standard for classic EMG biofeedback in relaxation and muscle-activity awareness training. The alternative filters 20–300 Hz (wide-band EMG) and 20–950 Hz (full spectrum for raw-data analysis) are only selectable in the Pro Edition.

The EMG signal for Biofeedback Techniques

With EMG, we measure a voltage curve over time, paying attention to both the amplitude (the magnitude) and the frequency of the signal. Depending on the musculature, significant differences become apparent. For example, an EMG signal from a small muscle, like a finger, is considerably lower in amplitude and frequency than the signal from a large thigh muscle. This variation is essential in biofeedback training, where understanding muscle activity helps in managing muscle tension and promoting relaxation.

The eSense Muscle EMG Device can measure the raw EMG signal and transmit it via Bluetooth®, offering three preset bandpass signals (RMS) in the following frequency ranges:

20 Hz to 950 Hz

20 Hz to 300 Hz

100 Hz to 200 Hz

These signals can be selected and used through the eSense web app or mobile app. In biofeedback training, we work with the bandpass RMS signals as they are directly related to muscle amplitude and applied force, crucial for tracking muscle activation and relaxation. Amplitude values range from a few µV (millionths of a volt) to several hundred µV in particularly strong muscles, providing valuable data for managing muscle tension and improving range of motion.

The frequency range of the EMG signal plays a lesser role in biofeedback, only emphasizing the specific signal part you want to observe. EMG activity spans a wide frequency spectrum, from approximately 10 Hz to 500 Hz, with a focus between 25-300 Hz. Choosing a wide filter (20-950 Hz) captures all components of the EMG signal, while a narrower filter (100-200 Hz) allows you to isolate key signals and reduce interference such as pulse artifacts or mains hum.

Additionally, for more comprehensive therapy, EMG devices like the eSense Muscle can be paired with electrical stimulation to enhance the recovery process. This combination provides precise biofeedback and stimulation, making the device an excellent tool for both muscle relaxation and targeted biofeedback training.

Quick User Guide

The complete manual can be found on our website www.mindfield.de under “Biofeedback” => “Products” => “eSense” => “eSense Muscle”. You can also find a demo video on our website. A short instructions comes with the eSense Muscle as well.
Take the electrode cable set from the package. Five electrode cables are included. In black, white, yellow, red and green.
The yellow electrode cable is the ground / earthing electrode!
For a 1-channel measurement, please use the electrodes black (channel 1+), white (channel 1-) and yellow (grounding).
For a 2-channel measurement, please use the electrodes black (channel 1+), white (channel 1-), yellow (grounding), red (channel 2+) and green (channel 2-).

Technical details

2-channel EMG biofeedback device
Bluetooth® 5.0 transmission to PC or smartphone / tablet (Android and iOS)
Built-in Li-Ion battery 1600mAh for up to 12 hours of uninterrupted operation
2 bipolar EMG inputs (CH1 +, CH1-, CH2 +, CH2-), 1 x analog ground
2 multifunction buttons for operating the device
1 RGB LED to display the operating status
24 bit ADC and preamplifier for each channel, native sampling with 2 kHz per channel
3 Bandpass filter (Bessel, 8th order) per channel. -3dB. Limit frequencies: BP1: 20..950Hz, BP2: 20..300Hz, BP3: 100..200Hz
RMS calculation and moving average over 0.5 seconds. Decimation to 100 RMS samples per second
200mV differential measuring range per channel
0.024 μV ADC Resolution per LSB
< 1.7 μV RMS Noise BP1
< 1.3 μV RMS Noise BP2
< 0.8 μV RMS Noise BP3
Channel 1 and 2 CMRR at 50Hz and 60Hz: better -105dB
Protection against electrostatic discharges (ESD) up to + -15kV according to the "Human Body Model", IEC 1000-4-2, Air-Gap Discharge
HF-Filter
Operating mode: continuous operation
Measurement accuracy EMG amplifier / ADC, amplification: ± 5% basic accuracy, ± 0.2% after calibration, bandpass lower and upper limit frequency: ± 0.1%, sampling frequency: better than ± 0.1% (Resonator)
Operating range: 5-40 ° C, <= 95% relative humidity

Engineered in Germany

The eSense is completely engineered at Mindfield in Germany.

Who is the eSense suitable for?

for private users / home users
for professional users (biofeedback trainer)

Mindfield eSense Web App for Windows, Mac and Linux

The eSense Muscle is being delivered with new software for the first time, a web app that runs exclusively in a browser.

You don't need to install any software. All you need is:

A PC / notebook with: Windows 10, Mac or Linux
A functioning Bluetooth® connection on this PC / notebook, Bluetooth® must therefore be available and usable.
A browser that supports "Web Bluetooth®" so that you can connect to our eSense Muscle via Bluetooth®. As of April 2021, these are Google Chrome, Microsoft Edge and Opera

We recommend to use the latest version of Google Chrome. Mozilla Firefox and Apples Safari are NOT supported.

So if you have a computer with Bluetooth® and one of the browsers mentioned, please go to the website: https://www.esense-muscle.com

Additional information

Weight	4 kg
Barcode	4260259770086
Merchant	Mindfield Biosystems Ltd.
HS Code	90318098
origin_country	DE

Product safety

Manufacturer information

Mindfield Biosystems Ltd.
Hindenburgring 4
D-48599 Gronau
Germany

Person responsible for the EU

Niko Rockensüß

Product safety documents

Declaration-of-Conformity-Muscle

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