Reliability of Knee Joint Position Testing with Electrogoniometry
Author Information
Author(s): Piriyaprasarth Pagamas, Morris Meg E, Winter Adele, Bialocerkowski Andrea E
Primary Institution: The University of Melbourne
Hypothesis
The study investigates the inter- and intra-tester reliability of knee joint angle measurements using electrogoniometry.
Conclusion
Reliable measures of knee joint angles can be obtained in various positions using a standardized protocol with a flexible goniometer.
Supporting Evidence
- Inter-tester reliability ranged from 0.57 to 0.80 across different positions.
- Intra-tester reliability ranged from 0.75 to 0.88.
- Measurement error was less than 3.55° between testers and less than 1.7° for repeated measures.
Takeaway
This study shows that using a special tool called an electrogoniometer can help doctors measure knee angles accurately, which is important for checking how well knees work.
Methodology
The study involved two phases: one with 35 participants measuring knee angles in different positions and another with 20 participants using a detailed protocol after walking.
Potential Biases
Measurement errors could arise from the electrogoniometer itself, the user, and the participant.
Limitations
The study used a fixed-length plinth which may not have suited all participants, potentially affecting measurement accuracy.
Participant Demographics
Participants included healthy adults aged 19-45, with a mix of genders.
Digital Object Identifier (DOI)
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