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Gharib M, Vameghi R, Salavati M, Hosseini S A, Saeedi A. Intra- and Inter-Rater Reliability of Micro Manual Muscle Tester of the Lower Extremity in Children With Diplegia Cerebral Palsy. Iranian Rehabilitation Journal 2019; 17 (2) :165-170
URL: http://irj.uswr.ac.ir/article-1-847-fa.html

Objectives: The Micro Manual Muscle Tester (MMMT) is a Hand-Held Dynamometer (HHD). The current study aimed to evaluate the intra- and inter-rater reliability of this device.
Methods: To determine the reliability of the MMMT, two previously trained assessors to work with HHD performed HHD measurements on 7 muscle groups of the lower extremities (hip flexors, hip extensors, hip abductors, knee extensors, knee flexors, ankle plantar-, and dorsiflexors) using the make-test method. The study participants were evaluated thrice by two occupational therapists in 10 separate days.
Results: All the inter- and intra-correlations were reported as excellent (ICC>0.90), except for ICC2,3 in the hip flexor muscles; and ICC2,3 in the dorsiflexor muscles that were similarly good (ICC=0.75-0.89) at a high significance level (P˂0.001).
Discussion: The MMMT had an acceptable reliability. Furthermore, this device is useful for investigating changes in strength after rehabilitation interventions.