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Epidemiological data suggests that mother nutritional condition can influence offspring body weight by means of metabolic imprinting. However, there are few experimental reports relating mother nutritional condition during lactation to offspring body weight in adulthood. The short and long term effects of maternal protein or energy malnutrition during lactation on offspring body weight were determined...
We are studying the control of human arm movements that are constrained by physical interaction with a machine such as a hand controller or a telerobotic system. One of the difficulties in controlling this type of constrained interaction is instability in the human arm-machine system. In this article, we present simulation results showing that increasing muscular co-contraction destabilizes human-machine...
We are studying the control of human arm movements that are constrained by physical interaction with a machine such as a hand controller or a telerobotic system. One of the difficulties in controlling this type of constrained interaction is instability in the human arm-machine system. In this article, we present simulation results showing that increasing muscular co-contraction destabilizes human-machine...
We simulate the dynamic interaction between the human arm and a machine that imposes a continuous constraint on the arm. Results indicate oscillatory behavior of the system when disturbances are applied to the arm at high co-contraction levels. The modeling presented here is useful in the areas of design and control of exercise and rehabilitation machines that are to interact with the human via control...
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