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| Name | Class |
|---|---|
| University of Brasilia | OTHER |
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Interferential electrical stimulation (IES) increases local blood flow. It is not known whether increases in blood flow may be caused by inhibition of sympathetic activity, mediated by muscle metaboreflex activity. The purpose of this study was to evaluate the effect of IES on metaboreflex activation in healthy subjects.
The study sample consisted of 11 healthy young individuals. All subjects were non-smokers, non-obese and free of any signs or symptoms of disease, as revealed by medical history, physical examination and electrocardiogram at rest and during cardiopulmonary exercise testing. Exclusion criteria were pregnancy, breast-feeding, alcohol or drug abuse, and any medication with potential effects on cardiovascular variables. Subjects were asked not to drink caffeine-containing drinks or exercise for at least 12 and 48 hours, respectively, before the experimental protocols.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Interferential | The individuals are treated acutely with interferential electrical stimulation (IES) during 30 min, providing a continuous flow of symmetrical rectangular interferential current biphasic pulses using bipolar electrodes with two channels and a slope of 1/5/1. The fixed current is adjusted to 4000 Hz, with the current AMF at 100 Hz and an AMF variation of 25 Hz (25% of AMF). |
| |
| Placebo | The same instructions and electrode positions were provided to the placebo, although the equipment did not provide any stimulation current |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Interferential | Device | The individuals are treated acutely with IES during 30 min, providing a continuous flow of symmetrical rectangular interferential current biphasic pulses using bipolar electrodes with two channels and a slope of 1/5/1. The fixed current is adjusted to 4000 Hz, with the current AMF at 100 Hz and an AMF variation of 25 Hz (25% of AMF). |
| Measure | Description | Time Frame |
|---|---|---|
| Muscle Metaboreflex Reflex | Calf blood flow | Participants will be followed for the duration of metaboreflex activity (up to 30 minutes) |
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Inclusion Criteria:
Exclusion Criteria:
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Healthy subjects without degenerative diseases.
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| Name | Affiliation | Role |
|---|---|---|
| Gaspar R Chiappa, Dr | Hospital de Clinicas de Porto Alegre | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| University of Brasilia | Brasília | Federal District | Brazil | |||
| Hospital de Clinicas de Porto Alegre |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 21796410 | Background | Vieira PJ, Ribeiro JP, Cipriano G Jr, Umpierre D, Cahalin LP, Moraes RS, Chiappa GR. Effect of transcutaneous electrical nerve stimulation on muscle metaboreflex in healthy young and older subjects. Eur J Appl Physiol. 2012 Apr;112(4):1327-34. doi: 10.1007/s00421-011-2084-z. Epub 2011 Jul 28. |
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| ID | Term |
|---|---|
| D009043 | Motor Activity |
| ID | Term |
|---|---|
| D001519 | Behavior |
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| ID | Term |
|---|---|
| D004599 | Electric Stimulation Therapy |
| ID | Term |
|---|---|
| D013812 | Therapeutics |
| D026741 | Physical Therapy Modalities |
| D012046 | Rehabilitation |
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| Interferential Placebo | Device | The same instructions and electrode positions were provided to the placebo, although the equipment did not provide any stimulation current |
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| Porto Alegre |
| Rio Grande do Sul |
| 90035-007 |
| Brazil |
| Gaspar Rogério da Silva Chiappa | Porto Alegre | Rio Grande do Sul | 90820-001 | Brazil |