Vol. 8, Issue 11, Part A (2022)

Background: Knee joint disorders are frequently associated with a loss of knee-extensor muscle strength. This weakness results from arthrogenic muscular inhibition (AMI). In the event of any joint damage, the free-nerve endings, a kind of pain receptor, located throughout the joint tissue, will undoubtedly be activated. If they have a significant effect on AMI is unknown.

Objective: The objective of this study is to compare the effectiveness of three manipulative therapy methods on quadriceps muscle strength in individuals with patellofemoral pain syndrome.

Material and Method: To ensure a consistent sample group, this study only included individuals with Patellofemoral Pain Syndrome (PFPS). This study used a convenience, purposive sampling strategy. In order to include individuals whose quadriceps muscle strength was impacted by AMI as a result of PFPS and not OA of the knee, 30 subjects were between the ages of 18 and 45, subjects were selected on the basis of inclusion & exclusion criteria. The individuals' quadriceps muscular strength and subject's subjective perception of their level of pain (associated to the PFPS) were measured both before and after manipulation.

Results: After manipulating the SI joint, the quadriceps strength dramatically increased (P = 0.05). AMI in the quadriceps muscle group has been connected to both the SI and knee joints.

Conclusion: Based on findings of the study, following treatment of the SI joint in PFPS patients, a notable improvement in the quadriceps and hamstrings strength was seen.