Journal of Undergraduate Research


transcutaneous electrical nerve stimulation, quadriceps activation, walking mechanics, anterior knee pain


Life Sciences


Exercise Sciences


More than ten million people in the U.S. suffer from knee pain, and one in every two people may develop chronic knee pain by age 85.3 Knee pain is also 1 of 5 leading causes of disability among adults, and alters muscle function and walking mechanics, which in turn, decreases quality of life.6 To alleviate the effects of knee pain and its consequences, transcutaneous electrical nerve stimulation (TENS) is often used to decrease perceived pain5 and increase quadriceps activation.7 However, it is unclear whether these benefits could offer potential improvement for walking mechanics. Therefore, the purpose of this study was to examine the effects of TENS on quadriceps motor function and walking mechanics in patients with pathological knee pain. We hypothesized that knee pain patients will show decreased quadriceps maximum voluntary isometric contraction (MVIC), quadriceps central activation ratio (CAR), and (3) altered walking mechanics. However, compared to placebo treatment, TENS will effectively mitigate the aforementioned variables.

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Kinesiology Commons