Spasticity
Conditions
Keywords
H-reflex, TENS, Tone
Brief summary
The purpose of this study is to determinate whether the application of electric currents produce changes in the excitability of alpha moto neurone. Moreover evidence whether the effect of the electric currents can change the tone of the muscle under stimulation in healthy volunteers
Detailed description
In the last years several experimental studies have evidenced that the transcutaneous electric nerve stimulation (TENS) in peripheric application can cause a decrease of spasticity and modulation of H-reflexes. But if the application is in the central nervous system the results are different. So the purpose of this study is quantify the modulation of the excitability of alpha moto neurone when the application of the current is in the central nervous system compared with a sham group.
Interventions
DEVICETranscutaneous Electrical Stimulation
TENS transcutaneous electrical stimulation over the back the electrotherapy device Myomed 932. (Enraf-Nonius, Delft, Netherlands)
DEVICE10Kilohertz (KHz)
10 KHz transcutaneous electrical stimulation over back through the electrotherapy device Myomed 932. (Enraf-Nonius, Delft, Netherlands)
DEVICESham stimulation
Sham transcutaneous electrical stimulation over back through the electrotherapy device Myomed 932. (Enraf-Nonius, Delft, Netherlands)
Sponsors
University of Castilla-La Mancha
Study design
Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Outcomes Assessor)
Eligibility
Sex/Gender
ALL
Age
18 Years to 60 Years
Healthy volunteers
Yes
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
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| 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
| Measure | Time frame | Description |
|---|---|---|
| Baseline muscle tone | Baseline at 0 min. | This outcome measure is obtained by a device named MyotonPro. It is a commercial device made to calculate myotonometrics properties of the muscle. It is a non-invasive method to calculate the muscle tone. The investigators obtained many parameters like muscle stiffness, frequency and decrement. |
| Muscle tone during treatment | During treatment at 35 min. | This outcome measure is obtained by a device named MyotonPro. It is a commercial device made to calculate myotonometrics properties of the muscle. It is a non-invasive method to calculate the muscle tone. The investigators obtained many parameters like muscle stiffness, frequency and decrement. |
| Muscle tone post-treatment | Post-treatment at 42min | This outcome measure is obtained by a device named MyotonPro. It is a commercial device made to calculate myotonometrics properties of the muscle. It is a non-invasive method to calculate the muscle tone. The investigators obtained many parameters like muscle stiffness, frequency and decrement. |
Countries
Spain
Contacts
Primary ContactDiego Serrano-Muñoz, MsC
Backup ContactJulio Gómez-Soriano, PhD
Outcome results
None listed