4.6 Which summary measures to use

A study of different orthoses (orthotic devices) in children with cerebral palsy (Swinnen et al. 2017) produced the demographic data of the participants.

GMFCS is the 'Gross Motor Function Classification System', which is:

... a 5 level clinical classification system that describes the gross motor function of people with cerebral palsy on the basis of self-initiated movement abilities.

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Swinnen E, Baeyens J-P, Mulders B Van, Verspecht J, Degelaen M. The influence of the use of ankle-foot orthoses on thorax, spine, and pelvis kinematics during walking in children with cerebral palsy. Prosthetics and Orthotics International. 2017;2017.