Laboratory Tests and Testimonials

Summary of the laboratory tests performed by professor Dr. P. Lievens – Vrije Universiteit in Brussels

Background and aims :
Electrical stimulation of muscles has an important potential during the process of rehabilitation and for increasing your results in the field of sports. However, sceptics are not convinced of the efficiency by using the existing stimulators. Indeed, till recently, the major problem of electrical muscular stimulation remained the use of incorrect parameters: wrong pulse durations and wrong intensities .

Experimental subjects :
The experiments were conducted on animals as well as on human volunteers.

All contractions, elicited by electrical stimulation of muscles, were registered by a force transducer and compiled in a computer for statistical analysis. While all other parameters remained constant, the amplitude, the duration and the frequency of the impulses were changed separately. All results were compared as to evaluate which parameter(s) evidenced the major impact on the generation of strength: an
increase in the duration of a pulse or the increase of its amplitude.

The maximal differences obtained by using a low amplitude and a longer duration were compared to the maximal changes obtained with pulses of a higher amplitude but shorter duration. A significant statistical difference in the generation of strength was observed by using a pulse with a 10 msec duration and an intensity of 7mA

Results :
The increase in strength reached its maximum levels by stimulating muscles with a pulse of 10 milliseconds and a frequency of 50 Hz.

Increasing the intensity above a certain level remained ineffective.

VZW Gezondheidszorg Oostkust
AZ O.L. Vrouw Ter Linden, Knokke-Heist and AZ Koningin Fabiola, Blankenberge
Rehabilitation: Orthopaedics, Neurology and Cardiology
Supervision: Dr. D. PEUTEMAN

Testsituation A :
A patient with paresis in the upper and lower extremities related to Guillain-Barré, who is in the faze of recuperation. Classic electrical  stimulation was already performed since one month. For another month, daily electrical stimulation by the Real-E-MUST (EMS-X) was performed to the flexors and extensors of his hands, the quadriceps and the extensors of both feet.

Results: very spectacular results were observed in all 4 extremities over this very short period and this in comparison to the use of the other stimulation modalities. The remaining part of the treatment was unchanged. The patient is recovering rapidly and feels the after-effects for a long time after each stimulation session.

Testsituation B :
Tetraplegic patient. The skin is hyperaesthetic for classical electrical stimulation, so that this part of the treatment was used only occasionally. Electrostimulation with the Real E-MUST (EMS-X) was performed 4 sessions per week for one month to treat the quadriceps, the extensors on both feet as well as the extensors at both wrists.


  • the hyperaesthetic phenomena had disappeared COMPLETELY
  • much higher intensities could easily been applied
  • 5% increase in the volume of the quadriceps after one month
  • for hours, the patient feels the after-effects of the electrical stimulation by EMS-X

Algemeen Stedelijk Ziekenhuis, Orthopedie, Campus Aalst
Testsituation: 27 patients tested with Real E-MUST (EMS-X)
. 6 patients with unilateral deficit of the quadriceps related to pathology of the knee
The patients were electrically stimulated for one month, 3 times a week during 20 minutes
Result: after one month the strength of the quadriceps muscle had increased 5 to 15 %
. 6 patients with unilateral deficit of the hamstrings related to knee pathology
The patients were electrically stimulated for one month, 4 times a week during 30 minutes
Result: the strength of the hamstrings had increased 10 to 20%
. 15 postoperative patients were treated following total hip- and/or knee prosthetic surgery.
Their quadriceps and hip extensors were electrically stimulated 5 days a week for 15 minutes during 14 days
Result: in combination with light exercises, an increase of quadriceps volume of 0,5 to 1 cm was recorded