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Publication Date

4-5-2019

Document Type

Poster

Degree Type

Graduate

Department

Kinesiology & Recreation

Mentor

Noelle Selkow

Mentor Department

Kinesiology & Recreation

Co-Mentor

Justin Stanek

Co-Mentor Department

Kinesiology & Recreation

Abstract

The objective of this study is to test for differences in hip abductor and hip adductor musculature in patients with and without low back pain (LBP). Concurrently, the researchers will produce a strength ratio measurement for the corresponding muscles in both healthy and LBP populations. No conclusions have been drawn between the difference in strength of the hip adductor and hip abductor muscles in those with and without LBP. In many studies, research has shown a decrease in strength of the hip abductors in patients with LBP. The hip abductors also have important roles is stabilizing the pelvis while walking. The hip adductors attach to the pubic symphysis and assist in stabilizing the pelvis. Due to the ability to activate and assist with hip and leg motions, the adductor muscles may have an effect on controlling hip motion to reduce LBP and sacroiliac dysfunction. However, it is unknown how the hip adductors respond in those with LBP. The participants in this study were allocated into either a control or experimental group based on the inclusion criteria. For the control group, the participant must have no pain, 0% on the Oswestry Disability Index (ODI), 0 on the Visual Analogue Scale (VAS), and be between the age of 18-40. For the experimental group, the participant must have at least a 3 on the VAS, 20-40% on the ODI, qualified 3 out of 4 of the clinical predictor rules for LBP, and between the age of 18-40. Those with previous surgeries, a specific diagnosis of LBP, or current pregnancy, were excluded from the study. Participants will perform a straight leg raise (SLR) for hip adduction and hip abduction of both legs. Participants are instructed to perform a SLR at maximal force 3 times in both directions on each leg. Data will be recorded using a hand-held dynamometer connected to a belt to enforce an immoveable object. The highest value of the 3 trails will be used, and strength values will be normalized to sex. The researchers hypothesize there will be observable differences between both groups in the hip adductors and hip abductors. We expect to see the hip adductors increase in strength in order to stabilize the femur in participants with LBP. This information will allow a calculated ratio measurement to be created and provide essential information in aiding future LBP rehabilitation and treatment.

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