Force Of Ground Reaction
Mostrando 25-35 de 35 artigos, teses e dissertações.
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25. Biomechanical anlysis of adults and elderlies walking in water and on land environments / "Análise biomecânica do andar de adultos e idosos nos ambientes aquático e terrestre"
Andar na água tem sido utilizado como um método alternativo para treinamento e reabilitação. No entanto, há pouca informação sobre as características biomecânicas do andar em piscina rasa. Em se tratando de indivíduos idosos, a escassez é ainda maior. Informações sobre as características biomecânicas do andar nessa condição ambiental é impo
Publicado em: 2005
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26. Treino em esteira com suporte parcial de peso associado à estimulação elétrica funcional melhora a marcha de hemiparéticos crônicos e efeitos da inclinação da esteira na marcha de sujeitos hemiparéticos.
The purpose of this study was to evaluate the effect of the combined use of functional electrical stimulation (FES) and treadmill training with body weight support (BWS) in walking functions and voluntary limb control in chronic hemiparetic patients. Eight hemiparetic individuals (mean age, 56.6 10.26 years) were evaluated in the present clinical trial. The
Publicado em: 2005
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27. Estudo de alterações das variaveis biomecanicas na instabilidade patelofemoral durante a marcha humana no dominio temporal
The knee, the largest articulation sinovial of the human body combines considerable mobility and it forces with the necessary stability to maintain it in the erect position. The fact of the knee to sustain discharges forces and to locate among two long arms of levers of the body, it become particularly susceptible to the injury. There is a growing concern in
Publicado em: 2002
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28. Mechanisms of non‐contact ACL injuries
In soccer one of the most common knee injuries is the anterior cruciate ligament (ACL) tear, which usually occurs through non‐contact mechanisms. Female soccer players are at higher risk of sustaining non‐contact ACL injuries than male soccer players. A good understanding of ACL loading mechanisms is the basis for a good understanding of the mechanisms o
BMJ Group.
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29. Control of an external force in leg extensions in humans.
1. We investigated the hypothesis that mono- and bi-articular muscles perform different functions: the former are chiefly dependent on their mechanical advantage, while the latter are considered to be mainly concerned with controlling the direction of an external force. 2. Seven subjects were asked to exert a constant external force in various directions fro
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30. Programmed electromyographic activity and negative incremental muscle stiffness in monkeys jumping downward.
We trained monkeys to jump down from different heights, and recorded electromyograms (e.m.g.s) in arm muscles, and ground reaction forces. The landing movements were also recorded by high-speed cinematography. The e.m.g. of the triceps began about 80 ms before landing. The initial burst lasted until about 20 ms after ground contact and was succeeded by burst
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31. Botulinum toxin treatment for lower limb extensor spasticity in chronic hemiparetic patients.
Twelve chronic hemiparetic outpatients with pronounced lower limb extensor spasticity were injected with 400 units of botulinum toxin A, EMG guided into the soleus, tibialis posterior, and both heads of the gastrocnemius muscles. Botulinum toxin A caused a definite reduction of plantar flexor spasticity, in 10 patients two weeks after the injection, as asses
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32. Determining the direction of vestibular-evoked balance responses using stochastic vestibular stimulation
As a tool for investigating vestibulo-motor function, stochastic vestibular stimulation (SVS) has some advantages over galvanic vestibular stimulation. However, there is no technique currently available for extracting direction information from SVS-evoked motor responses. It is essential to be able to measure the direction of response if one wishes to invest
Blackwell Science Inc.
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33. Unbinding forces of single antibody-antigen complexes correlate with their thermal dissociation rates
Point mutants of three unrelated antifluorescein antibodies were constructed to obtain nine different single-chain Fv fragments, whose on-rates, off-rates, and equilibrium binding affinities were determined in solution. Additionally, activation energies for unbinding were estimated from the temperature dependence of the off-rate in solution. Loading rate-dep
The National Academy of Sciences.
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34. Ontogeny of bipedal locomotion: walking and running in the chick.
1. The purpose of this study was to determine whether the production of an energy-efficient bipedal walk is an innate attribute of a precocial bird. 2. The locomotor characteristics of hatchling chicks were quantified using kinetic (ground reaction forces) and kinematic (stride length, leg support duration) measurements as the animals moved overground unrest
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35. Human body-segment tilts induced by galvanic stimulation: a vestibularly driven balance protection mechanism.
1. We have studied the effects of changes in posture on the motor response to galvanic vestibular stimulation (GVS). The purpose of the experiments was to investigate whether the function of the GVS-evoked response is to stabilize the body or the head in space. Subjects faced forwards with eyes closed standing with various stance widths and sitting. In all c