Factors Influencing Motor Outcome of Hippotherapy in Children with Cerebral Palsy

Abstract

Objective: This study was aimed to identify individual factors influencing the gross motor outcome of hippotherapy in children with cerebral palsy (CP).

Methods: One hundred and forty-six children with CP (mean age: 5.78 ± 1.72 years, male: 56.2%) presenting variable function (gross motor function classification system [GMFCS], levels I-IV) participated in this study. Participants received 30 minutes of hippotherapy twice a week for 8 weeks. Clinical information including GMFCS level, age, sex, CP distribution, CP type, gross motor function measure-88 (GMFM-88), GMFM-66, and pediatric balance scale (PBS) score were collected retrospectively. We regarded the children with GMFM-66 score increased by 2.0 points as good responders to hippotherapy. Further we analyzed factors affecting good responders.

Results: GMFCS level I and II compared with IV (odds ratio [OR] = 6.83) and III compared with IV (OR = 4.45) were significantly associated with a good response to hippotherapy. Higher baseline GMFM E (OR = 1.05) and lower baseline GMFM B (OR = 0.93) were also significantly associated with a good response to hippotherapy. Sex, age, CP type, and distribution were not factors influencing gross motor outcome of hippotherapy.

Conclusions: The children with CP, GMFCS level I-III, with relatively poor postural control in sitting might have a greater chance to improve their GMFM-66 scores through hippotherapy. This supports the hypothesis that hippotherapy is a context-focused therapy to improve postural control in sitting.