Effects of Hinged versus Floor-Reaction Ankle-Foot Orthoses on Standing Stability and Sit-to-Stand Performance in Children with Spastic Diplegic Cerebral Palsy

Yu-Lin Wang, Wen-Chou Chi, Chiung-Ling Chen, Cheng-Hsieh Yang, Ya-Ling Teng and Kwok-Tak Yeung
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Yu-Lin Wang: Center for General Education, Southern Taiwan University of Science and Technology, Tainan 710301, Taiwan
Wen-Chou Chi: Department of Occupational Therapy, Chung Shan Medical University, Taichung 40201, Taiwan
Chiung-Ling Chen: Department of Occupational Therapy, Chung Shan Medical University, Taichung 40201, Taiwan
Cheng-Hsieh Yang: Occupational Therapy Room, Rehabilitation Department, Taichung Veterans General Hospital, Taichung 40705, Taiwan
Ya-Ling Teng: Department of Occupational Therapy, Chung Shan Medical University, Taichung 40201, Taiwan
Kwok-Tak Yeung: Department of Occupational Therapy, Chung Shan Medical University, Taichung 40201, Taiwan

IJERPH, 2022, vol. 19, issue 1, 1-10

Abstract: Hinged ankle-foot orthoses (HAFOs) and floor reaction ankle-foot orthoses (FRAFOs) are frequently prescribed to improve gait performance in children with spastic diplegic cerebral palsy (CP). No study has investigated the effects of FRAFO on sit-to-stand (STS) performance nor scrutinized differences between the application of HAFOs and FRAFOs on postural control. This study compared the effects of HAFOs and FRAFOs on standing stability and STS performance in children with spastic diplegic CP. Nine children with spastic diplegic CP participated in this crossover repeated-measures design research. Kinematic and kinetic data were collected during static standing and STS performance using 3-D motion analysis and force plates. Wilcoxon signed ranks test was used to compare the differences in standing stability and STS performance between wearing HAFOs and FRAFOs. The results showed that during static standing, all center of pressure (COP) parameters (maximal anteroposterior/mediolateral displacement, maximal velocity, and sway area) were not significantly different between FRAFOs and HAFOs. During STS, the floor reaction force in the vertical direction was significantly higher with FRAFOs than with HAFOs ( p = 0.018). There were no significant differences in the range of motion in the trunk, knee, and ankle, the maximal velocity of COP forward displacement, completion time, and the force of hip, knee, and ankle joints between the two orthoses. The results suggest both FRAFOs and HAFOs have a similar effect on standing stability, while FRAFOs may benefit STS performance more compared to HAFOs.

Keywords: ankle-foot orthosis; standing stability; sit-to-stand; spastic diplegic cerebral palsy (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2022
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