Most children with PTHS have hypotonia. This means they have low muscle tone and leads to delayed motor development. Most will learn to roll, sit, crawl and walk much later than other children. A few children will not manage to walk. All children with PTHS will need the input of a specialist paediatric physiotherapist. Some children will not have as many problems with motor development as others. Some may walk as early as 18 months 2 years old but most will walk around 6 years of age. They may have slow coordination of their limbs which can cause a stiff gait when they walk.
