My experience with swimming is that the drag from the resistant medium outweighs the perceived "lift" from buoyancy. I expect the disorientation, nausea, etc.,

My experience with swimming is that the drag from the resistant medium outweighs the perceived "lift" from buoyancy. I expect the disorientation, nausea, etc., would outweigh any short term muscle-feel effects. For how weightlessness feels: http://science.howstuffworks.com/weightlessness2.htm http://science.howstuffworks.com/weightlessness2.htm