50 documents found, page 1 of 5
PORTO BIOMECHANICS LABORATORY: TEACHING, RESEARCH AND COMMUNITY SERVICES
Vilas-Boas, João Paulo; Fonseca, Pedro; Sousa, Manoela Vieira; Sebastião, Ricardo; Carvalho, Diogo; Duarte, João Pedro; Zacca, RodrigoPorto Biomechanics Laboratory is a technological centre of the University of Porto dedicated to teaching, scientific and technological research, innovation, to provide specialized technical services and transference of knowledge and technology (product development) in Biomechanics (human and animal) of ergonomic, clinical, sports or biomimetic interest (e.g. design, computer animation and model development). LA...
Does gait with an ankle foot orthosis improve or compromise minimum foot cleara...
Fonseca, Pedro; Machado, Leandro; Sousa, Manoela Vieira; Sebastião, Ricardo; Sousa, Filipa; Figueiredo, Joana; Santos, Cristina; Vilas-Boas, João PauloThe purpose of this study was to investigate if the use of an ankle foot orthosis in passive mode (without actuation) could modify minimum foot clearance, and if there are any compensatory mechanisms to enable these changes during treadmill gait at a constant speed. Eight participants walked on an instrumented treadmill without and with an ankle foot orthosis on the dominant limb at speeds of 0.8, 1.2, and 1.6 ...
Relato de Experiência: probabilidade no Ensino Médio
Musmanno, Leonardo; Ceni, Moises; Machado, Leandro; Gonçalves, SérgioEste artigo relata uma experiência prática, relacionada ao estudo das Probabilidades, realizada com alunos do 3° ano do Ensino Médio. A experiência consistiu em utilizar um jogo baseado no lançamento de dados para trabalhar conceitos de probabilidade em espaços amostrais não equiprováveis. O objetivo principal da experiência é verificar como esta atividade lúdica pode contribuir no processo de aprendizagem real...
The effect of an exercise intervention program on bone health after bariatric s...
Diniz-Sousa, Florêncio; Veras, Lucas; Boppre, Giorjines; Sá-Couto, Pedro; Devezas, Vítor; Santos-Sousa, Hugo; Preto, John; Vilas-Boas, João PauloExercise has been suggested as a therapeutic approach to attenuate bone loss induced by bariatric surgery (BS), but its effectiveness remains unclear. Our aim was to determine if an exercise-training program could induce benefits on bone mass after BS. Eighty-four patients, submitted to gastric bypass or sleeve gastrectomy, were randomized to either exercise (EG) or control group (CG). One month post-BS, EG und...
Oxygen uptake kinetics and energy system's contribution around maximal lactate ...
Pelarigo, Jailton Gregorio; Machado, Leandro; Fernandes, Ricardo Jorge; Greco, Camila Coelho [UNESP]; Vilas-Boas, Joao PauloMade available in DSpace on 2018-11-26T17:20:55Z (GMT). No. of bitstreams: 0 Previous issue date: 2017-02-28; Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES); Ministry of Education of Brazil; The purpose of this study was to examine the oxygen uptake ((V) over dotO(2)) kinetics and the energy systems' contribution at 97.5, 100 and 102.5% of the maximal lactate steady state (MLSS) swimming in...
The influence of gait cadence on the ground reaction forces and plantar pressur...
Castro, Marcelo P.; Figueiredo, Maria Cristina; Abreu, Sofia; Sousa, Helena; Machado, Leandro; Santos, Rubim; Vilas-Boas, João PauloBiomechanical gait parameters ground reaction forces (GRFs) and plantar pressures during load carriage of young adults were compared at a low gait cadence and a high gait cadence. Differences between load carriage and normal walking during both gait cadences were also assessed. A force plate and an in-shoe plantar pressure system were used to assess 60 adults while they were walking either normally (unloaded co...
Biomechanical Characterization of Comfort Footwear using Gait Analysis
Flores, Andreia; Marques, Maria Arcelina; Fonseca, Pedro; Machado, Leandro; Vaz, MárioComfort footwear has unique characteristics fundamental to people looking for this type of shoe, namely foot support, flexibility, stability, lightweight, cushioning, traction, etc. [1]. They are usually preferred mainly by elder, overweighed or people with feet problems [2]. It is known that the shoe can modify gait behavior [3]. The purpose of this study was to evaluate posture and gait by comparing barefoot ...
The influence of gait cadence on the ground reaction forces and plantar pressur...
Castro, Marcelo; Figueiredo, Maria Cristina; Abreu, Sofia; Sousa, Helena; Machado, Leandro; Santos, Rubim; Vilas-Boas, João PauloBiomechanical gait parameters—ground reaction forces (GRFs) and plantar pressures—during load carriage of young adults were compared at a low gait cadence and a high gait cadence. Differences between load carriage and normal walking during both gait cadences were also assessed. A force plate and an in-shoe plantar pressure system were used to assess 60 adults while they were walking either normally (unloaded co...
Hydrodynamic analysis of different finger positions in swimming: a computationa...
Vilas-Boas, João Paulo; Ramos, Rui Jorge; Fernandes, Ricardo Jorge; Machado, Leandro; Barbosa, Tiago Manuel Cabral dos Santos; Silva, AntónioThe aim of this research was to numerically clarify the effect of finger spreading and thumb abduction on the hydrodynamic force generated by the hand and forearm during swimming. A computational fluid dynamics (CFD) analysis of a realistic hand and forearm model obtained using a computer tomography scanner was conducted. A mean flow speed of 2 m∙s–1 was used to analyze the possible combinations of three finger...
Computational fluid dynamics vs. inverse dynamics methods to determine passive ...
Costa, L.; Mantha, V R; Silva, António; Fernandes, Ricardo J.; Marinho, Daniel; Vilas Boas, J. Paulo; Machado, Leandro; Rouboa, AComputational fluid dynamics (CFD) plays an important role to quantify, understand and "observe" the water movements around the human body and its effects on drag (D). We aimed to investigate the flow effects around the swimmer and to compare the drag and drag coefficient (CD) values obtained from experiments (using cable velocimetry in a swimming pool) with those of CFD simulations for the two ventral gliding ...