Test-Retest Reliability Of Activforce 2 Handheld Dynamometer For Measuring Knee Strength
Keywords:
ActivForce 2, Hand Held Dynamometer, Isometric knee extension and flexion strengthAbstract
Assessing knee strength using a Handheld Dynamometer is critical for its application in clinical and research settings. The new ActivForce 2 Handheld Dynamometer, which is affordable and portable, is used easily to measure both force and range of motion. The objective of the present study was to determine the test-retest reliability of the ActivForce 2 Handheld Dynamometer to measure Knee strength.
An evaluative research design was conducted on 60 healthy participants through non-probability convenience sampling from Kerala. The researcher has done a maximal isometric knee extension and flexion strength and was assessed in two separate sessions. After the first session, the second session was evaluated 24 hours later. The data were recorded simultaneously and automatically in the ActivForce 2 software. Intra-class correlation coefficients (ICCs) on four pairs were calculated to determine the device's reliability.
The result showed that Intraclass Correlation Coefficients (ICCs) revealed moderately good reliability for right knee extension (ICC = 0.785) and left knee extension (ICC = 0.760), while right knee flexion (ICC = 0.644) and left knee flexion (ICC = 0.669) demonstrated moderate reliability. It indicates that the new Activforce2 Handheld Dynamometer provides a moderate level of reliability.
These findings suggest that the new ActivForce 2 Handheld Dynamometer is moderately reliable, user-friendly, and affordable for evaluating knee strength.
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