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Activation timing of soleus and tibialis anterior muscles during sit-to-stand a...
Augusta Silva; Andreia S. P. Sousa; Rita Pinheiro; Joana Ferraz; João Manuel R. S. Tavares; Rubim Santos; Filipa SousaIntroduction. Sit-to-stand (SitTS) and stand-to-sit (StandTS) are very important functional tasks that become compromised in stroke patients. As in other voluntary movements, they require an adequate postural control (PC) involving the generation of anticipatory postural adjustments (APAs). In order to give clues for more efficient and directed rehabilitation programs, a deeper knowledge about APAs during chall...
Interlimb relation during the double support phase of gait: An electromyographi...
Andreia SP Sousa; Augusta Silva; João Manuel RS TavaresThe purpose of this study is to analyse the interlimb relation and the influence of mechanical energy on metabolic energy expenditure during gait. In total, 22 subjects were monitored as to electromyographic activity, ground reaction forces and VO2 consumption (metabolic power) during gait. The results demonstrate a moderate negative correlation between the activity of tibialis anterior, biceps femoris and vast...
Interlimb coordination during the stance phase of gait in subjects with stroke
Andreia S. P. Sousa; Augusta Silva; Rubim Santos; Filipa Sousa; João Manuel R. S. TavaresObjective: To analyse the relation between contralesional and ipsilesional limbs in subjects with stroke during step-to-step transition of walking. Design: Observational, transversal, analytical study with a convenience sample. Setting: Patients from a physical medicine and rehabilitation clinic in Portugal (Braga). Participants: Sixteen subjects with post-stroke hemiparesis with the ability to walk independent...
Soleus Activity in post-Stroke Subjects: Movement Sequence from Standing to Sit...
Augusta Silva; Andreia S. P. Sousa; Rita Pinheiro; João Manuel R. S. Tavares; Rubim Santos; Filipa SousaIntroduction. The beginning of the movement sequence from standing to sitting requires the modulation of plantar flexors activity, including the soleus muscle (SOL), to allow the forward translation of the tibia in relation to the foot, preserving its antigravity function. Purpose. To analyze the SOL activity during the initial phase of standing to sitting in stroke subjects. Methods. Two groups of ten subjec...
Ankle dynamic in stroke patients: Agonist vs. antagonist muscle relations
Augusta Silva; Andreia S. P. Sousa; João Manuel R. S. Tavares; Ana Tinoco; Rubim Santos; Filipa SousaIntroduction: Atypical ankle patterns of muscle activity during gait are commonly reported in patients with stroke. These findings can be due to changes between tibialis anterior (TA) and soleus (SOL) coactivation mechanisms. Objective: To compare the electromyographic activity (EMGa) of SOL and TA muscles and antagonist coactivation (C) level in the contralateral (CONTRA) and ipsilateral (IPSI) limbs to the si...
Biomechanical and neurophysiological mechanisms related to postural control and...
Andreia S. P. Sousa; Augusta Silva; João Manuel R. S. TavaresUnderstanding postural control requires considering various mechanisms underlying a person´s ability to stand, to walk and to interact with the environment safely and efficiently. The purpose of this paper is to summarise the functional relation between biomechanical and neurophysiological perspectives related to postural control in both standing and walking based on movement efficiency. Evidence related t...
Dislipidemia em escolares na rede privada de Belém
Ribas,Simone Augusta; Silva,Luiz Carlos Santana daFUNDAMENTO: Atualmente, a dislipidemia infanto-juvenil associada a outros agravos não transmissíveis como diabete, hipertensão e obesidade representam um grave problema de saúde pública no Brasil. OBJETIVO: Investigar a prevalência de dislipidemia em crianças e adolescentes da rede particular de ensino na cidade de Belém. MÉTODOS: Estudo transversal e prospectivo, no qual foram avaliados 437 escolares pareados ...
Comportamento de algumas cultivares de figueira na região de Beja (2003)
Regato, Mariana Augusta; Silva, Osvaldo Pantaleão; Sousa, Rui Maia; Guerreiro, Idália ManuelaProjecto nº 347 - Centro Hortofrutícola - Acção 8.1 do PO AGRO. Instituto Politécnico de Beja. Escola Superior Agrária, 2004. ; Realizou-se o estudo da adaptabilidade de algumas cultivares (cvs.) de figueira, produtoras de figos lampos e vindimos, instaladas num pomar da Escola Superior Agrária de Beja, assim como, uma análise da sua produtividade e qualidade dos frutos. Os resultados obtidos demonstraram que ...
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