The Dubowitz neuromuscular service at Great Ormond Street Hospital for Children sees approximately 180 children per year with a diagnosis of Charcot-Marie-Tooth (CMT), the majority having type 1A. Routine physiotherapy assessment of these children includes measurement of grip strength by "Citec" myometry and manual dexterity using the 16-Peg Functional Dexterity Test (FDT). Fine motor function and daily living activities are evaluated using an adapted Pedi scale for CMT. The aim of this study was to evaluate whether the reduced power in grip strength and manual dexterity difficulties affect fine motor function. Normal myometry data was collected for gross, thumb and pinch grip strength in 4 age groups, 4-7, 7-10, 11-14 and 15-18, from 20 boys and 20 girls in each group. Handedness was not defined as there was no significant difference found when establishing normal ranges. The Citec myometer was chosen as it allows to measure the specific grips, selected as most frequently used in daily function. The independent measurement reduces problems of inter and intra-relater reliability. Normative values established by Gorgola in 2013 for the Functional Dexterity Test (FDT) were used. Measurements from the 40 children with CMT1A were compared to these normal values. Information included ethnicity, laxity, hand dominance and regular hand activities. Findings for the children with CMT show that 100% presented with reduced power and dexterity. This resulted in all children over the age of seven reporting fatigue with writing longer than 30 minutes, and 85% need assistance to fasten open ended zips, laces and use small buttons which is not found in the normal population By routinely assessing hand power and dexterity we have been able to better address issues of difficulty with writing in school and obtain increased support for activities of daily living; enabling children to perform to their maximum ability and increase their independence as reported by parents.