NeuroTrac® MyoPlus4 Pro

Other views | Download hi-res picture
Optional accessories compatible with this product
  • New and Improved touch-screen with full colour display. The new user friendly interface makes it a self-explanatory unit with the interactive learning on the go, including electrode placement, running EMG graph as well as many other helpful tools.
  • Pre-set programmes for Incontinence treatment, Sports and muscular development, neuro-muscular Rehabilitation.
  • Designed for Physiotherapist in mind to be used as a portable tool. Suitable as a personal trainer for in-clinic or home use (under guidance).
  • 2 channel EMG (Biofeedback) combined with 4 channels of NMES (stimulation).
  • 2 channel ETS (EMG triggered stimulation) with stimulation on 4 channels.
  • Simple single-phase or multiphase operation: multiphase allows EMG/ETS/STIM to be combined in one programme.
  • Multilingual LCD screen and voice prompts for Biofeedback.
  • Manual and Automatic threshold control.
  • EMG Biofeedback between stimulation (muscle activity and tiredness indication when using muscle stimulation).
  • Stand alone device or used in conjunction with established multilingual software.
  • Now with Bluetooth connectivity! The unit sends up to 10 metres of  wireless data to PC software.
  • For home users: Produces and prints (with the optional PC Software) the comprehensive patient progress reports on a day to day basis providing average readings (2 channels) on work/rest, peak, onset and muscle release times, work and rest deviations and the average mA current.
  • Used as a learning tool for both patient and clinician with emphasis on improving treatment techniques in the use of EMG and Neuromuscular stimulation.
  • 4 x AA batteries {No mains required}.
Read more:PDF
We are working on adding new tutorials and practical guides, please visit us later. Thanks for your patience.
Pelvic Floor: P01-P19 Sports: P01-P21

Rehab: P01-P08


P1 - Pelvic floor pain
P2 - Urge incontinence 1
P3 - Stress incontinence 1
P4 - Stress incontinence 2
P5 - Frequency / Urge 1
P6 - Frequency / Urge 2
P7 - Frequency / Urge 3
P8 - Lack of sensitivity
P9 - Pelvic floor work out
P10 -Building up endurance
P11 -Relaxing the pelvic muscle
P12 -Postnatal incontinence
P13 -Stress incontinence 3
P14 -Stress incontinence 4
P15 -Urge incontinence 2
P16 -Urge incontinence 3
P17 -Frequency
P18 -Flaccid muscle
P19 -Weak pelvic muscle

P1 - Warm Up
P2 - Active recovery
P3 - Endurance
P4 - Resistance 1
P5 - Resistance 2
P6 - Resistance 3
P7 - Resistance strength 1
P8 - Resistance strength 2
P9 - Resistance strength 3
P10 -Strength 1
P11 -Strength 2
P12 -Strength 3
P13 -Max strength 1
P14 -Max strength 2
P15 -Max strength 3
P16 -Max strength 4
P17 -Explosive force 1
P18 -Explosive force 2
P19 -Fatigue resistance
P20 -Agonistic 1
P21 -Agonistic 2

P1 - Muscle growth
P2 - Spinal column
P3 - Parectic extremities
P4 - Facial palsy 1
P5 - Facial palsy 2
P6 - Disuse atrophy
P7 - Stroke 1
P8 - Stroke 2
P9 - Multiple sclerosis

EMG Custom x 2
STIM Custom x 2
ETS Custom x 2
P&A Custom x 5
P+A Custom is suitable for a tailor
made programme to be set up with
Passive STIM and Active EMG / ETS
phases, all in one programme.
Protocols Author Download
Treatment of the Hemiplegic Shoulder (Stroke) through Biofeedback: Case Study Verónica Bargueño, Juan Nicolás Cuenca & Eric Lazar
F.E.S. in Stroke Juan Nicolás Cuenca & Eric Lazar
Urinary Incontinence Julia Herbert Grad. Dip. Phys. MCSP SRP Specialist Continence Physiotherapist
Stress Urinary Incontinence Anna Pawlaczyk Specialist in Gynecology
Stress Urinary Incontinence, using EMG Triggered Stimulation - NEW Maciej Kisiel, Henryk Konon MD
Pelvic Floor Muscle Activity in Sitting & Standing Postures R Saphod, C Maher and C Richardson
Fecal Incontinence Pirkko Raivio Specialist Continence Physiotherapist
Incontinence Case Reports Pirkko Ravio Specialist Continence Physiotherapist
General Pain Relief with TENS Dr. Deirdre M. Walsh Phil, B. Physio, PgCUT, MISCP, MCSP Co-ordinator, Rehabilitation Sciences Research Group
Patellofemoral Pain James Selfe. PhD. MA. GD Phys. MCSP. SRP. Lecturer Chartered Physiotherapist.
Prolapse: Pelvic Floor Muscle Training for Women Karen Radford, MSc, MCSP and Funmi Odofin, BSc, PG Cert. MCSP

EMG (Biofeedback)

  • Dual channel EMG
  • EMG Range: 0.2 to 2000 μV RMS (continuous)
  • Sensitivity: 0.l μV RMS
  • Accuracy: 4% of μV reading +/-0.3 μV at 200 Hz
  • Selectable Bandpass filter - 3db Bandwidth,
    • a. Wide: 18 Hz +/- 4 Hz to 370 Hz +/- 10% - Reading below 235 microvolts 10 Hz +/-3 Hz to 370 Hz +/- 10% - Reading above 235 microvolts
    • b. Narrow: 100 Hz +/- 5% to 370 Hz +/- 10%
  • Notch filter: 50 Hz (Canada 60Hz) - 33 dbs (0. 1% accuracy)
  • Common Mode Rejection Ratio: 130 dbs Minimum @ 50 Hz
  • Batteries: 4 x 1.5V ( AA battery)
  • Optional Charger: CE approved.
  • Work / Rest periods: 2-99 seconds
  • Number of Trials: 2-99

STIM (Neuromuscular Stimulation)

  • Four channel Stimulator
  • Amplitude: 0-90 mA into 500 Ohm load - actual mA will tend to be less
    than indicated due to Electrode impedance: at 1000 Ohms load (Electrodes
    in poor condition) the maximum will be limited to 75 mA, at 1500 Ohms
    load the maximum will be limited to 50 mA.
  • Type: Constant current, maximum output
    voltage 70 Volts +5 / -10 Volts
  • Waveform: Symmetrical, rectangular,
    bi-phasic with net zero DC current
  • Pulse width selection: 50-450 μS (2% accuracy)
  • Pulse rate selection: 2-100 Hz (2% accuracy)
  • Work / Rest periods: 2-99 seconds
  • Time 1 - 99 minutes
  • Ramp up time: 0.1 - 9.9 seconds
  • Preset and user programmable treatment Programs
  • Automatic output shut off with detection of open electrode above 0.5 mA


Battery: Low battery indication at 5.4 volts +/- 0.2 volts, automatic shut off when voltage dropps below the low indication. Replace the batteries immediately! The device goes off automatically when not in use (energy saving): for example when in settings and no key pressed over 1 minute, when in stimulation mode (home screen) and all channels are 0mA.

Expected average battery set life [of standard 800 mAh, alkaline]:
a. MyoPlus2:    12-16 hours in STIM, 25 hours in EMG mode.
b. MyoPlus4:    8-16 hours in  STIM, 25 hours in EMG mode.

Environmental Conditions for use: +10 to +30 degrees Centigrade. 0-90% Humidity.

Environmental conditions for storage & transport: -10 to +50 degrees Centigrade. 0-90% Humidity.

Physical dimensions: Length 150 mm, Width 89 mm, Depth 35 mm.

Weight: MyoPlus2 device: 0.16 Kg (without batteries).