The aim of study was to observe changes in denervated muscles viscoelastic properties and motor performance of OBPP children. Viscoelastic properties have a significant effect on muscle performance; however have not investigated yet in denervated muscle. Hypothesized that the viscoelastic properties of denervated muscles are different than healthy side muscles and can vary depending on the age groups. 74 patients who have C5-C6 root lesion were enrolled to the study. The patients were grouped according to their age groups: 1-5 months, 6-24 months and 25-36 months. Myoton-3 myotonometric measuring device was used to measure the viscoelastic properties (tone, elasticity and stiffness) of deltoid, biceps brachii. Active Movement Scale were used to evaluate the motor function of the muscles. There were difference in muscle viscoelastic properties depending on age group. Children aged 0-5 months showed significant difference in deltoid muscle tone (p=0.0001), stiffness (p=0.0001), biceps brachii muscle tone (p=0.0001) and stiffness (p=0.0001), when compared with other groups (denervated side was lower in values). Therefore, it is in our opinion that in follow-up, clinical assessment of viscoelastic properties will be useful for monitoring denervated muscle; also treatment programs and purposes for OBPP should be varying according to the muscle properties.
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Myotone-3, Viscoelastic Properties Measurement
Timeframe: a day (single measurement)