Original Research Article
Year: 2020 | Month: November | Volume: 10 | Issue: 11 | Pages: 7-15
A Study to Find Out EMG Activity of the Vastus Medialis Oblique Muscle in Functional Positions in Patients with Osteoarthritis of Knee: An Observational Study
Brinda Joshi
(M.P.T. In Musculoskeletal Conditions & Sports) Assistant Professor, C.U.Shah Physiotherapy College; Surendranagar
ABSTRACT
Background: Osteoarthritis is a chronic degenerative disorder primarily affecting the articular cartilage of synovial joints, with eventual bony remodeling and overgrowth at the marginal of the joints. Electromyography is used to evaluate the scope of neuromuscular disease or trauma, and kinesiological electromyography is used to study muscle function. The VastusMedialisOblique is the most important quadriceps muscle and arguably the most responsible muscle for knee stability.
Aim: To check the EMG activity of vastusmedialis muscle in different functional position in patients with OA knee.
Method: Total 30 subjects (7) male and (22)female were taken in this study. EMG activity of VMO was recorded in different eleven (11) functional positions ( In Supine, Side lying, Sitting, Standing).
Outcome Measure: EMG activity-Amplitude.
Statistical Analysis: The differences between the vastusmedialisoblique muscle was assessed by using nonparametric friedman test.
Results: The EMG activity of VMO muscle was recorded with the mean of the all eleven positions. Extremely significant difference was found in supine positions, sitting and side lying positions (p=0.000) in standing positions that difference were (p=0.019).
Conclusion: These finding suggest that there was extremely significant difference among all exercises. In supine positions SLR with ER was found highest mean (114.07).In high sitting knee extension exercise found greater mean (172.4) so high sitting knee extension exercise produced the highest VMO activation among all the exercises. In standing positions squatting position was found highest mean (128.07).
Key words: OA knee, VMO muscle, EMG