Dec 16, 2020 · For example, if an isos-motic glucose or saline solution is separated from plasma by a membrane that is permeable to water, but not to glucose or NaCl, osmosis will not occur. In this case, the solution is said to be isotonic (from the Greek isos = equal; tonos = tension) to plasma. To test this hypothesis, it is necessary to first develop isometric and isotonic exercise protocols that can be quantified as to the work performed and tested independently and then in combination. We have recently developed an isometric testing device and studied the effects of isometric exercise-training on rat calf muscles ( 20 ).
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