Browsing by Subject "TENS"
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Item A Comparison Pilot Study of Motor-level Electrical Stimulations for Lowering Postprandial Glucose LevelsJohnson, Annika; Hansen, Trevor; McCluskey, Charity; Huang, Han-Hung; Weise, Shelly; Ko, Man-SooAbstract Purpose: The purpose of this study is to compare the effects of three Motor-level Electrical Stimulation (MES) parameters, NMES, Russian current, and low-rate transcutaneous electric nerve stimulation (TENS) on non-diabetic healthy subjects’ postprandial glucose levels, heart rate, and oxygen consumption (VO2). Background: MES has been shown to improve glucose tolerance and glucose uptake in both animals and humans. The effects of MES include increasing the following: heart rate, blood pressure, oxygen uptake, ventilatory capacity, muscle bulk, muscle oxidative process, and muscle glycogen depletion. Recently, MES has been shown to improve blood glucose control in people with type 2 diabetes. However, limited research is available that comprehensively compares varying MES parameters on the effects of postprandial glucose levels. Methods: Twenty-eight healthy student subjects were randomly assigned to either the NMES, Russian current, TENS, or control group without any MES. Subjects participated in an overnight fast of at least 8 hours and had their fasting blood glucose measured. Subjects were given a glucose supplement to drink within 10 minutes, rested in supine for 30 minutes then the second glucose level was taken. Subjects received a 30 minute treatment intervention followed by the third blood glucose measurement. Subjects then rested an additional 30 minutes followed by obtaining the final blood glucose measurement. VO2 levels were monitored every 30 seconds, and heart rate was monitored every 3 minutes throughout the 90 minute study. Results: There were no significant differences between groups on glucose levels and heart rates throughout the study. The Russian group demonstrated a statistically significant increase up to 10% in VO2 compared to the control group. Conclusion: MES seems to have no effects on postprandial glucose levels in non-diabetic healthy subjects. While 30-minute MES treatment did not change the heart rate, Russian current significantly increased the VO2. Our findings indicate Russian current may have the potential to be applied to mimic exercise better than NMES or TENS. Further research is required to explore the effects of Russian current on blood glucose levels in people with T2D.Item A study into the non-invasive manipulation of skin blood flow utilizing electrotherapy techniques integrating Eastern and Western research to create an engaging, open-ended classroom experiences.(2013-08) Casselman, James Edwin; Diller, K. R. (Kenneth R.)The research to date, of transcutaneous electric nerve stimulation on cutaneous blood flow, is equivocal. The purpose of this report is to review the TENS body of knowledge, in particular synthesizing the literature on acupuncture stimulation of cutaneous blood flow with the two fold goal of creating a protocol to increase skin blood flow through the exogenous application of electrical stimulation, as well as creating an engaging engineering challenge for high school anatomy and physiology students. The hypothesis developed was TENS stimulation with electrode placement on specific acupuncture points would influence cutaneous blood flow as measured using laser Doppler flowmetry. The findings of this project did not support the hypothesis of TENS or Interferential electrical stimulation, in combination with acupuncture points or not, influencing skin blood flow. Perhaps this is due to the physiological differences between glabrous and non-glabrous skin and the different electrical resistances of each dermal layer, nerve stimulation, age and gender of subject or some combination thereof. These equivocal findings may also be the result of inconsistencies in testing protocols, such as subject preconditioning or not, subject’s position during administration of stimulation, electrode size and placement to name a few. Ultimately, this report provides a summary of the research to date, as well as outlining how this research could be adapted to supply engaging bio engineering challenges in the classroom including challenges to develop a model for delivering current to muscle; develop a model for skin blood flow management to name a few.