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Master's Dissertation
DOI
10.11606/D.5.2013.tde-24062013-102052
Document
Author
Full name
Adriana Naomi Hamamoto
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2013
Supervisor
Committee
Sacco, Isabel de Camargo Neves (President)
Vilibor, Renata Hydee Hasue
Weiderpass, Heinar Augusto
Title in Portuguese
Análise de séries temporais da locomoção: uma investigação sobre a influência da neuropatia diabética
Keywords in Portuguese
Análise de ondaletas
Análise multivariada
Eletromiografia
Extremidade Inferior
Marcha
Músculo esquelético
Neuropatias
Tornozelo
Abstract in Portuguese
O objetivo deste estudo foi investigar os padrões de distribuição de energia e as propriedades espectrais dos principais músculos de membro inferior de diabéticos neuropatas durante a marcha, utilizando a análise de wavelet. Foram coletados dados de EMG de superfície (bipolar) dos músculos tibial anterior, vasto lateral e gastrocnêmio medial no ciclo da marcha em 21 pacientes diabéticos diagnosticados com neuropatia periférica, e 21 indivíduos não- diabéticos. A energia do sinal e freqüência foram comparados entre os grupos no ciclo da marcha e em cada faixa de freqüência (7-542Hz), utilizando testes t. A Análise de Componentes Principais foi utilizada para avaliar as diferenças entre os padrões eletromiográficos de diabéticos e não-diabéticos. Os indivíduos diabéticos exibiram menores energias nas menores frequências para todos os músculos, e energias mais altas nas maiores frequências nos músculos extensores do membro inferior. Os pacientes também apresentaram menor energia de gastrocnêmio medial e uma maior energia de vasto lateral comparado aos não diabéticos, e este último achado sugere uma estratégia para compensar o déficit dos extensores de tornozelo para impulsionar o corpo na marcha. Os resultados mostram, de maneira geral, uma mudança na estratégia neuromuscular dos pacientes diabéticos, sugerindo que os principais músculos extensores do membro inferior adaptam a sua resposta a fim de produzir a energia necessária para realizar essa tarefa, a do andar
Title in English
Time series analysis of locomotion: an investigation of diabetic neuropathy influence
Keywords in English
Ankle
Electromyography
Gait
Lower extremity
Multivariate analysis
Neuropathies
Skeletal muscle
Wavelet analysis
Abstract in English
The aim of this study was to investigate lower limb muscle's energy patterns and spectral properties of diabetic neuropathic individuals during gait cycle using wavelet approach. Bipolar surface EMG of tibialis anterior, vastus lateralis and gastrocnemius medialis were acquired in the whole gait cycle in 21 diabetic patients already diagnosed with peripheral neuropathy, and 21 non-diabetic individuals. The signal´s energy and frequency were compared between groups in the whole gait cycle and in each frequency band (7-542Hz) using t tests. Principal component analysis was used to assess differences between diabetic and non-diabetic EMG patterns. The diabetic individuals displayed lower energies in lower frequency bands for all muscles and higher energies in higher frequency bands in the extensors' muscles. They also showed lower energy of gastrocnemius and a higher energy of vastus, and this last finding suggests a strategy to compensate the ankle extensor deficit to propel the body forward. The overall results suggest a change in the neuromuscular strategy of diabetic patients, suggesting that the main extensor muscles of the lower limb adapt their response to produce the energy necessary to accomplish the walking task
 
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Publishing Date
2013-06-24
 
WARNING: The material described below relates to works resulting from this thesis or dissertation. The contents of these works are the author's responsibility.
  • SACCO, I. C. N., et al. Role of ankle mobility in foot rollover during gait in individuals with diabetic neuropathy [doi:10.1016/j.clinbiomech.2009.05.003]. Clinical Biomechanics (Bristol) [online], 2009, vol. 24, p. 687-692.
  • WEIDERPASS, H. A., et al. Time-frequency analysis methods for detecting effects of diabetic neuropathy [doi:10.1002/cnm.2545]. International Journal for Numerical Methods in Biomedical Engineering [online], 2013, vol. v.1, p. n/a-n/a.
  • HAMAMOTO, A.N., et al. Alteração do mecanismo de rolamento do pé nos diabéticos neuropatas pode predispor a aumento de sobrecargas plantares. In XVI Congresso Brasileiro de Diabetes, Campinas, 2007. Arquivos Brasileiros de Endocrinologia e Metabologia., 2007. Resumo.
  • HAMAMOTO, A.N., et al. Plantar pressure during gait in diabetic neuropathy: Effect of severity degree classified by a Fuzzy expert model. In XIII Expert Scientific Meeting - Load Distribution, Aalborg, Dinamarca, 2012. Proceedings of the XIII Expert Scientific Meeting.Aalborg : Aalborg University, 2012. Abstract.
  • HAMAMOTO, A.N., et al. Relationship between ankle mobility and plantar pressure distribution during gait in diabetic neuropathic patients. In XI Emed Scientific Meeting, Dundee, 2008. Proceedings., 2008. Abstract.
  • SACCO, I. C. N., et al. Effect of diabetic neuropathy on EMG of the lower limbs from the perspective of discrete wavelets analysis. In XIX Congress of the International Society of Electrophysiology and Kinesiology, Brisbane, 2012. Proceedings of the XIX Congress of the International Society of Electrophysiology and Kinesiology.Brisbane, Australia : International Society of Electrophysiology and Kinesiology, 2012. Abstract.
  • SACCO, I. C. N., et al. The influence of diabetic neuropathy on EMG of the lower limbs from the perspective of continuous wavelet analysis and multivariate techniques. In XIX Congress of the International Society of Electrophysiology and Kinesiology, Brisbane, 2012. Proceedings of the XIX Congress of the International Society of Electrophysiology and Kinesiology.Brisbane, Australia : International Society of Electrophysiology and Kinesiology, 2012. Abstract.
  • WATARI, R., et al. Análise da pressão plantar na marcha de diabéticos com diferentes graus de neuropatia periférica classificados por um sistema fuzzy. In XIV Congresso Brasileiro de Biomecânica, Ribeirão Preto, 2011. Anais do XIV Congresso Brasileiro de Biomecânica.Ribeirão Preto : Sociedade Brasileira de Biomecânica, 2011. Resumo.
  • WATARI, R., et al. Gait EMG of diabetic neuropathic patients: effect of disease severity classified by a fuzzy expert model. In XIX Congress of the International Society of Electrophysiology and Kinesiology, Brisbane, 2012. Proceedings of the XIX Congress of the International Society of Electrophysiology and Kinesiology.Brisbane, Australia : International Society of Electrophysiology and Kinesiology, 2012. Abstract.
  • Weiderpass, H., et al. Comparison between some time-frequency analysis methods on electromyography (EMG) signal. In João Manuel Tavares, e Renato Natal Jorge. Computational Vision and Medical Image Processing. Organizador. London : Taylor & Francis Group, 2011{Volume}. cap. 1, p. 393-398.http://www.teses.usp.br/teses/disponiveis/5/5163/tde-24062013-102052/
  • Menção Honrosa - Prêmio Crefito 3 - Trabalho: Pressões médias maiores na marcha podem aumentar o risco de úlceras em diabéticos neuropatas - XVII Congresso Brasileiro de Fisioterapia
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