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Influence of Muscle Motor Point Identification on Quadriceps Function Following Neuromuscular Electrical Stimulation

Melillo, Julie Ann
http://rave.ohiolink.edu/etdc/view?acc_num=toledo1556547710451478

Abstract Details

2019, Master of Science, University of Toledo, Exercise Science.
Neuromuscular electrical stimulation (NMES) is a common modality used daily in rehabilitative to help limit muscle atrophy after immobilization and increase muscle strength. NMES is commonly placed on the quadriceps muscles, but there is no consistency in the parameters and often results in limitations such as early muscle fatigue, patient discomfort and muscle damage. A motor point (MP) is the most superficial nerve that can be stimulated, and NMES administered with electrodes over the MPs decrease patient discomfort and improves quadriceps torque. The purpose of this study is to see if the use of NMES on a quadriceps MP would minimize fatigue and other neuromuscular limitations commonly seen after NMES treatment. This was a crossover study conducted in a university laboratory with twenty healthy individuals (age: 21.75±2.33 years, height:174.72±6.59cm, mass: 80.66±11.57kg). Independent variables were time (pre and posttesting) and treatment group (MP or traditional electrode placement). Dependent variables included Coefficient of variation (COV), rate torque development (RTD), fatigue (MVIC), Pain (VAS), and perceived exertion (RPE). Participants were randomly assigned a treatment group and motor points were assessed on both days. Participants completed three knee extension maximal voluntary isometric contractions (MVIC). The NMES treatment was applied for ten minutes at a maximal tolerated stimulus followed by three post intervention knee extension trials. Participants reported to the lab 2-weeks later to conduct identical methods with the opposite electrode placement. Results showed a decrease in torque output in the traditional electrode placement (p=.034). There was also a decrease in the late phase of RTD for the traditional electrode placement (p= .010). In conclusion, NMES applied over the MP resulted in a significantly less decrease in torque output when compared to traditional placement. Clinicians should consider identifying the MP for electrode placement when administering NMES, as it has influence on the quadriceps function.
Neal Glaviano (Committee Chair)
Christopher Ingersoll (Committee Member)
Grant Norte (Committee Member)
Kinesiology

Recommended Citations

Citations

  • Melillo, J. A. (2019). Influence of Muscle Motor Point Identification on Quadriceps Function Following Neuromuscular Electrical Stimulation [Master's thesis, University of Toledo]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1556547710451478

    APA Style (7th edition)

  • Melillo, Julie. Influence of Muscle Motor Point Identification on Quadriceps Function Following Neuromuscular Electrical Stimulation . 2019. University of Toledo, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=toledo1556547710451478.

    MLA Style (8th edition)

  • Melillo, Julie. "Influence of Muscle Motor Point Identification on Quadriceps Function Following Neuromuscular Electrical Stimulation ." Master's thesis, University of Toledo, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1556547710451478

    Chicago Manual of Style (17th edition)

toledo1556547710451478
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This open access ETD is published by University of Toledo and OhioLINK.