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Long-term effects of foot orthoseson leg muscles activity in individuals with pesplanus during walking
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Hamed Esmaeili1   , Mehrdad Anbarian 2, Fatemeh Salari Esker1 , Behrooz Hajiloo1 , Mohammad Ali Sanjari3 |
1- Bu-AliSina University, Hamedan
2- Bu-AliSina University, Hamedan , m_anbarian@yahoo.com
3- Tehran University of Medical Sciences |
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Abstract: (8987 Views) |
| Background and Aim: Foot orthoses are widely prescribed to treat a range of lower extremity problems. Long-term biomechanical effects of foot orthosesare not clearly documented in the literature. The aim of this study was to examine long-term effects of foot orthoses on leg muscles activity in individuals with pesplanus during walking.
Materials and Method: In this clinical trial we selected 45 subjects after clinical examination. The subjects were divided into three equal groups: experimental pesplanus, control pesplanus and a healthy control group (with normal feet). In the pre-test stage, electrical activity of leg muscles including tibialis anterior, peroneus longus, medial gastrocnemius and soleus were recorded at stance phase of walking, while all subjects walked barefoot along a 14m line. Experimental pesplanus group wore the custom-made orthoses for a period of six months. Then experimental pesplanus and control pesplanus groups underwent post-test. One-way ANOVA was used for data analysis.
Results: After six months of utilizing foot orthoses, the tibialis anterior activity significantly decreased in contact sub-phase (P=0.006). The medial gastrocnemius activity showed a significant decrease in midstance sub-phase in the post-test (P=0.007). Also, the soleus muscle had decreased activity in contact (P=0.033) and midstance (p=0.023) sub-phases in the post-test.
Conclusion: According to the results of this study, we found that long term use of foot orthoses could change muscle activation and result in secondary adaptation.
Received: Jan19, 2013 Accepted: Oct 8, 2013
Conflict of interest: None declared |
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| Keywords: Foot orthoses, Walking, Electromyography, Long-term effect, Pesplanus. |
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Full-Text [PDF 363 kb]
(3672 Downloads)
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Type of Study: Original Research |
Subject:
General
Received: 2014/03/16 | Accepted: 2014/03/16 | Published: 2014/03/16
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