yoga-physiotherapy-2017-posters-abstracts

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Current Research: Integrative Medicine

October 16-17, 2017 Chicago, USA

Yoga and Physiotherapy Congress

Yoga and Physiotherapy 2017

Association of quadriceps torque with lower extremity dysfunction in women with early

degrees of knee osteoarthritis (OA)

Ahmed Elmelhat

Cairo University, Egypt

Purpose:

The purpose of this study was to investigate whether or not there is an association between concentric

and eccentric torque of quadriceps muscle with lower extremity dysfunction represented by WOMAC including

(pain, knee stiffness and physical function) in women with early stages of knee OA.

Backgrounds/Significance:

Osteoarthritis (OA) is a progressive and disabling joint disease. Quadriceps

weakness is a hallmark impairment of knee osteoarthritis and the symptoms of knee OA are attributed to it.

However, few studies have evaluated this relationship in a population with early stages of knee OA especially in

women.

Subjects:

Forty females patient represented their mean age (50.05±4.006) years, mean weight (82.13±8.16) Kg,

mean height (158.07±7.25) Cm and mean BMI (30.5±4.86) Kg/m2, with knee OA grades I or II (according to

Kellgren and Lawrence criteria) participated in this study.

Methods & Materials:

The concentric and eccentric quadriceps torque were assessed using a biodex isokinetic

dynamometer, multi-joint system 3, at a speed of 90°/s. Self-reported symptoms and disability were assessed

using the WOMAC questionnaire.

Analyses:

Spearman’s r correlation coefficients was used to analyze the relationship between the dependent

variables (WOMAC subscales for pain, stiffness and physical function) and the independent variables (the

normalized mean peak concentric and eccentric quadriceps torques). Significance level set at p<0.05 for all

comparisons.

Results:

The results of this study demonstrated that there is strong negative correlation between the concentric

quadriceps torque and pain (r=-0.68, p<0.001) and physical function (r=-0.63, p=0.011) but poor negative

correlation among the concentric quadriceps torque and stiffness (r=-0.25, p=0.11). Eccentric quadriceps torque

presented a moderate and negative correlation with pain and physical function of the two subscales of the

WOMAC (r=-0.50 to 0.53, p<0.05).with poor correlation with stiffness (r=-0.28, p=0.07).

Conclusions:

It can be concluded that the concentric and eccentric quadriceps torque is significantly correlated

with self-report symptoms of patients (pain and physical function) in initial stages of knee OA with poor

correlation between the concentric and eccentric quadriceps torque stiffness.