An anterior ankle-foot orthosis improves walking economy in Charcot–Marie–Tooth type 1A patients
Background: Ankle-foot orthoses are commonly prescribed in Charcot–Marie–Tooth type 1A disease to improve quality of walking and reduce the risk of falling due to the foot drop. Objectives: This study aimed at assessing the effect of an anterior ankle-foot orthosis on walking economy in a group of Charcot–Marie–Tooth type 1A patients. Study design: Within-group comparisons. Methods: 7 Charcot–Marie–Tooth type 1A patients (four women and three men; 37 ± 11 years; age range = 22–53 years) were asked to walk on a circuit at their self-selected speeds (‘slow’, ‘comfortable’ and ‘fast’) in two walking conditions: (1) with shoes only and (2) with Taloelast® anterior elastic ankle-foot orthoses. Speed of walking and metabolic cost of walking energy cost per unit of distance were assessed at the three self-selected speeds of walking for both walking conditions. Results: Speed of walking at the three self-selected speeds did not differ between shoes only and anterior elastic ankle-foot orthoses, whereas walking energy cost per unit of distance at comfortable speed was lower in patients using anterior elastic ankle-foot orthoses with respect to shoes only (2.39 ± 0.22 vs 2.70 ± 0.19 J kg−1 m−1; P < 0.05). Conclusions: In Charcot–Marie–Tooth type 1A patients, the use of anterior elastic ankle-foot orthoses improved walking economy by reducing the energy cost of walking per unit of distance, thus reflecting a lower level of metabolic effort and improved mechanical efficiency in comparison with shoes only. Clinical relevance: From a practical perspective, Charcot–Marie–Tooth type 1A patients with anterior elastic ankle-foot orthoses can walk for a longer duration with a lower level of physical effort. Improvements in walking economy due to ankle-foot orthoses are likely a consequence of the reduction in steppage gait.
History
Published in
Prosthetics and Orthotics InternationalPublisher
Wolters KluwerVersion
AM (Accepted Manuscript)Citation
Menotti, F., Laudani, L., Damiani, A., Mignogna, T. and Macaluso, A. (2014) 'An anterior ankle-foot orthosis improves walking economy in Charcot–Marie–Tooth type 1A patients', Prosthetics and Orthotics International, 38(5), pp.387-392Print ISSN
0309-3646Electronic ISSN
1746-1553Cardiff Met Affiliation
Cardiff School of Sport and Health SciencesCardiff Met Authors
Luca LaudaniCardiff Met Research Centre/Group
- Public Health and Wellbeing