The focus of this project is to determine the immediate efficacy of a combined treatment (lateral wedge insole + simple knee sleeve) in individuals with knee osteoarthritis (OA) and the short term effect over 6 weeks. Secondly, to compare the effect of this combined treatment with each treatment on its own (lateral wedge insole, simple knee sleeve)
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Enrollment
30
The lateral wedge insole is an orthotic device that is placed inside the shoe. It has different thicknesses, with the lateral side being thicker than the medial side. This difference in thickness leads to the lateral side being higher than the medial side, with a different angulation.
The simple knee sleeve is support which is worn around the knee with no hinge or provide external valgus moment.
The lateral wedge insole is an orthotic device that is placed inside the shoe. It has different thicknesses, with the lateral side being thicker than the medial side. This difference in thickness leads to the lateral side being higher than the medial side, with a different angulation. The simple knee sleeve is support which is worn around the knee with no hinge or provide external valgus moment.
External knee adduction moment (EKAM)
External knee adduction moment is a curve which is consider as indirect measurement of the knee loading. Using the gait analysis system will give us this outcome
Time frame: 6 weeks
Pain measurment.
10 cm visual analogue scale will be used to measure pain.
Time frame: 6 weeks
Muscle co-contraction
Muscle co-contraction can be measured after using Electromyography machine. This outcome gives us indicator to the effect of the treatment on muscle activity and loading.
Time frame: 6 weeks
Dynamic balance
The modified star excursion balance test will be used. In this test, the participants balance on maintaining single-leg stance, while reaching with the free limb in anterior and lateral directions in relation to the stance foot as far as they can, then return to double support without losing balance.
Time frame: 6 weeks
Joint position sense
Each participant was asked to sit at the edge of a bed. Participants were blindfolded and barefoot to eliminate any other effects on the test results. After receiving instructions for the procedure and performing two practice trials, each participant was asked to extend his/her knee to one of the five randomly selected angles. The participate then will be asked to replicated the angle and the angle will be measure by using the gait lab.
Time frame: 6 weeks
Pressure pain threshold
Pressure guage will be used to measure the pain threshold on medial condyle and medial malleolus. Each participant will be asked to lie in side lying on the bed and Algometer's probe will be held perpendicular to the area which will be tested. Pain pressure threshold is defined as the lowest pressure intensity at which the pain felt. Pressure will be applied to the area tested at constant speed 10 kPa/s. each participant will be instructed to say stop when the first sensation of pain due to pressure felt. Each patient will be given 2 trials before starting the tests. Area which will be tested are the medial side of the knee as this considered the most painful area and medial malleolus as reference pain-free area (Wylde, Palmer, Learmonth, \& Dieppe, 2011). Each test will be performed 3 times and the average will be calculated for each site. Pain pressure assessment will be performed at the baseline and after 6 weeks in order to investigate the treatments effect.
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Time frame: 6 weeks
Physical function tests
3 functional tests will be used to investigate the effect of the treatment 40 meter fast paced walk test, 30 second chair stand test, a stair climb test). A- 40 meter fast paced test. Each participant will be asked to walk 10 meters' distance for 4 time which will be marked by tap on the floor. B- 30 second chair stand test: This test represents the number of counts that each participant can do to stand and sit on a chair in 30 second. C- 9 step stair climb test: In this test the time which will be taken by each participant to ascend 9 steps (20cm high) and descend will be measured in second.
Time frame: 6 weeks
Physical activity level
Exam the effect of the treatment on the physical activity level using physical activity scale for elderly questionnaire. Physical activity will be measured in this study via using physical activity scale for elderly (PASE). PASE (Appendix 7) is a valid and reliable questionnaire to measure the physical activity level (Martin et al., 1999; Ngai, Cheung, Lam, Chiu, \& Fung, 2012; Washburn \& Ficker, 1999).
Time frame: 6 weeks