intra- and inter-rater reliability of micro manual muscle tester of the lower extremity in children with diplegia cerebral palsy

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 intracorrelations 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.