Table 1

Inclusion and exclusion criteria

Inclusion criteriaExclusion criteria
  • Presence of non-spastic calf muscle weakness (defined as an MRC score <5 and/or unable to perform >3 heel rises)

  • Presence of a pes equinus (ie, dorsiflexion <0°) under weight-bearing

  • Using an AFO or high orthopaedic shoe/boot (one-sided or two-sided)

  • Severe deformity of the ankle/foot that cannot be fitted with an AFO

  • Able to walk 10 m barefoot without assistive device

  • Severe weakness of the upper legs requiring a knee-ankle-foot orthosis

  • Able to walk for 6 min with or without assistive device

  • Age between 18 and 80 years

  • Weight ≤120 kg

  • AFO, ankle-foot-orthosis; MRC, Medical Research Council.