Context: No direct research has been conducted on the relationship between subcutaneous tissue thickness and neuromuscular electrical stimulation (NMES).
Objective: The purpose of this study was to determine the effects of subcutaneous tissue thickness on NMES amplitude and NMES force production of the quadriceps.
Design: Simple fixed design, testing the independent variable of subcutaneous thickness (skinfold) groups with the dependent variables of NMES amplitude and force production.
Setting: Athletic Training Laboratory.
Participants: 29 healthy women.
Intervention: NMES to produce at least 30% of maximal voluntary isometric contractions (MVIC) of the quadriceps.
Main Outcome Measure: Maximal NMES amplitude and percentage of MVIC using NMES.
Results: A significant skinfold category difference F2,28=3.92, P=.032 on NMES amplitude was found. Post hoc revealed the thinnest skinfold category tolerated less amplitude compared to the thickest category. A significant correlation was found between NMES amplitude skinfold category R=.557, P=.002.
Conclusion: Higher NMES amplitudes are needed for the thickest skinfold category compared to the thinnest skinfold category.
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