Hemodynamic Effects Induced by Transcutaneous Electrical Nerve Stimulation in Apparently Healthy Individuals: A Systematic Review With Meta-Analysis.

Autor:	Campos FV; Health Sciences and Technologies PhD Program, Department of Physical Therapy, University of Brasilia, Brasilia, Brazil; Cardiac Rehabilitation Ambulatory, Armed Forces Hospital, Brasilia, Brazil., Neves LM; Health Sciences and Technologies PhD Program, Department of Physical Therapy, University of Brasilia, Brasilia, Brazil; University of Para, Belém, Brazil., Da Silva VZ; Health Sciences and Technologies PhD Program, Department of Physical Therapy, University of Brasilia, Brasilia, Brazil., Cipriano GF; Health Sciences and Technologies PhD Program, Department of Physical Therapy, University of Brasilia, Brasilia, Brazil., Chiappa GR; Exercise Pathophysiology Research Laboratory, Cardiology Division, Porto Alegre Hospital, Porto Alegre, Brazil., Cahalin L; Department of Physical Therapy, Leonard M. Miller School of Medicine, University of Miami, Miami, FL., Arena R; Department of Physical Therapy, College of Applied Health Sciences, Chicago, IL; Integrative Physiology Laboratory, College of Applied Health Sciences, University of Illinois at Chicago, Chicago, IL., Cipriano G; Health Sciences and Technologies PhD Program, Department of Physical Therapy, University of Brasilia, Brasilia, Brazil. Electronic address: cipriano@unb.br.
Jazyk:	angličtina
Zdroj:	Archives of physical medicine and rehabilitation [Arch Phys Med Rehabil] 2016 May; Vol. 97 (5), pp. 826-35. Date of Electronic Publication: 2015 Sep 15.
DOI:	10.1016/j.apmr.2015.08.433
Abstrakt:	Objective: To determine the immediate effects of transcutaneous electrical nerve stimulation (TENS) on heart rate, systolic blood pressure (SBP), and diastolic blood pressure (DBP) in apparently healthy adults (age ≥18y). Data Sources: The Cochrane Library (online version 2014), PubMed (1962-2014), EMBASE (1980-2014), and LILACS (1980-2014) electronic databases were searched. Study Selection: Randomized controlled trials were included when TENS was administered noninvasively with surface electrodes during rest, and the effect of TENS was compared with that of control or placebo TENS. A sensitive search strategy for identifying randomized controlled trials was used by 2 independent reviewers. The initial search led to the identification of 432 studies, of which 5 articles met the eligibility criteria. Data Extraction: Two independent reviewers extracted data from the selected studies. Quality was evaluated using the PEDro scale. Mean differences or standardized mean differences in outcomes were calculated. Data Synthesis: Five eligible articles involved a total of 142 apparently healthy individuals. Four studies used high-frequency TENS and 3 used low-frequency TENS and evaluated the effect on SBP. Three studies using high-frequency TENS and 2 using low-frequency TENS evaluated the effect on DBP. Three studies using high-frequency TENS and 1 study using low-frequency TENS evaluated the effect on heart rate. A statistically significant reduction in SBP (-3.00mmHg; 95% confidence interval [CI], -5.02 to -0.98; P=.004) was found using low-frequency TENS. A statistically significant reduction in DBP (-1.04mmHg; 95% CI, -2.77 to -0.03; I(2)=61%; P=.04) and in heart rate (-2.55beats/min; 95% CI, -4.31 to -0.78; I(2)=86%; P=.005]) was found using both frequencies. The median value on the PEDro scale was 7 (range, 4-8). Conclusions: TENS seems to promote a discrete reduction in SBP, DBP, and heart rate in apparently healthy individuals. (Copyright © 2016 American Congress of Rehabilitation Medicine. Published by Elsevier Inc. All rights reserved.)
Databáze:	MEDLINE
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