Changes in dynamic trunk/head stability and functional reach after hippotherapy.

OBJECTIVES To determine if hippotherapy (therapy using a horse) improves head/trunk stability and upper extremity (UE) reaching/targeting in children with spastic diplegia cerebral palsy (SDCP). DESIGN Pre-postoperative follow-up with a 12-week intervention and 12-week washout period after intervention. SETTING A human performance laboratory with 6 camera video motion capture systems for testing. PARTICIPANTS Eleven children (age 5-13y, average 8y) with SDCP, 8 children (age 5-13y, average 8y) without disabilities. INTERVENTION Hippotherapy intervention performed at 3 therapeutic horseback riding centers. MAIN OUTCOME MEASURES Video motion capture using surface markers collecting data at 60 Hz, a mechanical barrel to challenge trunk and head stability, and functional reach/targeting test on static surface. RESULTS Significant changes with large effect sizes in head/trunk stability and reaching/targeting, elapsed time, and efficiency (reach/path ratio) after 12 weeks of hippotherapy intervention. Changes were retained after a 12-week washout period. CONCLUSIONS Hippotherapy improves trunk/head stability and UE reaching/targeting. These skills form the foundation for many functional tasks. Changes are maintained after the intervention ceases providing a skill foundation for functional tasks that may also enhance occupational performance and participation.

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