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Nursing

Barbara A. Rakel

Selected Works

Double-Blind Method

Articles 1 - 2 of 2

Full-Text Articles in Medicine and Health Sciences

Effectiveness Of Transcutaneous Electrical Nerve Stimulation On Postoperative Pain With Movement, Barbara Rakel, Rita Frantz May 2012

Effectiveness Of Transcutaneous Electrical Nerve Stimulation On Postoperative Pain With Movement, Barbara Rakel, Rita Frantz

Barbara A. Rakel

This study tested the effectiveness of episodic transcutaneous electrical nerve stimulation (TENS) as a supplement to pharmacologic analgesia on pain with movement and at rest after abdominal surgery and evaluated whether its use during walking and vital capacity maneuvers enhances performance of these activities. TENS, with a modulated frequency, intensity as high as the subject could tolerate, and electrodes placed on either side and parallel to the incision, was compared to placebo TENS and pharmacologic analgesia alone (control) by using a crossover design. Self-report of pain intensity, walking function, and vital capacity were assessed on 33 subjects. TENS resulted in …


A New Transient Sham Tens Device Allows For Investigator Blinding While Delivering A True Placebo Treatment, Barbara Rakel, N. Cooper, H. Adams, B. Messer, L. Frey Law, D. Dannen, C. Miller, A. Polehna, R. Ruggle, C. Vance, D. Walsh, K. Sluka May 2012

A New Transient Sham Tens Device Allows For Investigator Blinding While Delivering A True Placebo Treatment, Barbara Rakel, N. Cooper, H. Adams, B. Messer, L. Frey Law, D. Dannen, C. Miller, A. Polehna, R. Ruggle, C. Vance, D. Walsh, K. Sluka

Barbara A. Rakel

This study compared a new transient sham transcutaneous electrical nerve stimulation (TENS) that delivers current for 45 seconds to an inactive sham and active TENS to determine the degree of blinding and influence on pain reduction. Pressure-pain thresholds (PPT), heat-pain thresholds (HPT), and pain intensities to tonic heat and pressure were measured in 69 healthy adults before and after randomization. Allocation investigators and subjects were asked to identify the treatment administered. The transient sham blinded investigators 100% of the time and 40% of subjects compared to the inactive sham that blinded investigators 0% of the time and 21% of subjects. …