Overall, we found repeatability of the HEAD-US protocol was good when performed by physiotherapists, and our results support the emerging view that US imaging complements the physical examination when screening and monitoring joint health of people with haemophilia at the point of care.
Alterations in gait patterns of boys with haemophilia appear to be associated with changes in performance of physical function and performance seems to depend on their muscle strength. Timed 6-minute walk test, timed up and down steps test and muscle strength of the knee extensors showed the strongest correlation with biomechanical joint function, and hence might serve as a basis for the clinical monitoring of physical function outcomes in children with haemophilia.
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