Fatigue is not well understood. Some factors that have been proposed to explain the fall in force during fatigue include: changes in the 'sense of effort', loss of 'central drive', failure of...

Fatigue is not well understood. Some factors that have been proposed to explain the fall in force during
fatigue include: changes in the 'sense of effort', loss of 'central drive', failure of neuromuscular propagation, reduction in calcium release in excitation- contraction coupling, metabolic changes in the muscle, and reduction in muscle blood flow owing to compression of blood vessels.

1. Do your experiments help to decide which factors are important?