Importance of the Current Density in TENS
Study Details
Study Description
Brief Summary
The purpose of this study is demonstrate the importance of density current of TENS in the effect about H-reflex in healthy volunteers.
| Condition or Disease | Intervention/Treatment | Phase |
|---|---|---|
|
N/A |
Detailed Description
TENS have been used to treatment against pain and reflex modulation. However, the most part of evidence do not show the current density. This parameter has been demonstrated like a important factor in the effect of the current about the outcome measures.
This study show the difference between the same subjective sensation "strong but comfortable" in current density and the relation with the effect about H-reflex.
Study Design
Arms and Interventions
| Arm | Intervention/Treatment |
|---|---|
| Experimental: Transcutaneous nerve stimulation Transcutaneous application of TENS current over the back for a 40 minutes session. The intensity of the current will increase until participants report a "strong but comfortable" sensation, just below motor threshold. |
Device: TENS
TENS transcutaneous electrical stimulation over back through the electrotherapy device Myomed 932. (Enraf-Nonius, Delft, Netherlands)
|
| Sham Comparator: Sham stimulation Electrodes are placed over the back for a 40 minutes in the same manner as experimental groups, but will be applied a sham electrical stimulation increasing the current intensity of an unconnected channel |
Device: Sham stimulation
Sham transcutaneous electrical stimulation over back through the electrotherapy device Myomed 932. (Enraf-Nonius, Delft, Netherlands)
|
Outcome Measures
Primary Outcome Measures
- Baseline H reflex [baseline at 0 min.]
H-reflex data are obtained by EMG signal. The EMG electrode (SignalConditioningElectrodes v2.3, Delsys Inc., USA) is fixed on triceps surae by the SENIAM protocol (www.seniam.org). The stimulator electrode is fixed on the peroneus nerve, in the popliteal fossa.
- During treatment H reflex [During treatment at 33min.]
H-reflex data are obtained by EMG signal. The EMG electrode (SignalConditioningElectrodes v2.3, Delsys Inc., USA) is fixed on triceps surae by the SENIAM protocol (www.seniam.org). The stimulator electrode is fixed on the peroneus nerve, in the popliteal fossa.
- Post-treatment H reflex [Immediately after treatment at 40 min.]
H-reflex data are obtained by EMG signal. The EMG electrode (SignalConditioningElectrodes v2.3, Delsys Inc., USA) is fixed on triceps surae by the SENIAM protocol (www.seniam.org). The stimulator electrode is fixed on the peroneus nerve, in the popliteal fossa.
Secondary Outcome Measures
- Change Current Density [At 1 min. treatment session, at 40 min. treatment session]
Current density (mA/cm2) is obtained by a mathematical operation. It is the result of the quotient between the current intensity by the area of the electrodes (in this case 45cm²).
Eligibility Criteria
Criteria
Inclusion Criteria:
- Participants will be volunteer healthy students of Physiotherapy, University of Castilla - La Mancha, older than 18 years.
Exclusion Criteria:
-
Neuromuscular disease.
-
Epilepsy.
-
Trauma, surgery or pain affecting the upper limb, shoulder girdle or cervical area.
-
Osteosynthesis material in the upper limb.
-
Diabetes.
-
Cancer.
-
Cardiovascular disease.
-
Pacemaker or other implanted electrical device.
-
Take any drug (NSAIDs, corticosteroids, antidepressants, analgesics, antiepileptics, ...) during the study and in the previous 7 days.
-
Presence of tattoos or other external agent introduced into the treatment or assessment area.
-
Pregnancy.
-
Sensitivity disturbance in lower limb.
Contacts and Locations
Locations
No locations specified.Sponsors and Collaborators
- University of Castilla-La Mancha
Investigators
- Principal Investigator: Diego Serrano-Muñoz, MsC, Hospital Nacional de Parapléjicos de Toledo
Study Documents (Full-Text)
None provided.More Information
Publications
None provided.- ddsm