A simple model to link hemodynamics, fatigue and endurance in static work.

This paper combines assumptions on blood flow changes during static work, on fatigue resulting from a shortage of chemical fuel, and on energy supply and demand considerations, to construct a systems model for endurance time in the maintenance of isometric muscle tension. All these quantitative assumptions are based on published experimental findings. The model is applied to published data on isometric endurance and a fit yielding R2 = 0.98 obtained on a composite data set.

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