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Unformatted text preview: (3 marks) a) What is the power output of this muscle? Recall that power = work per unit time. b) How would increased recruitment of motor units (higher activation of the muscle) change
the shape of the work-loop? Draw the resultant work-loop on the following axes, and include a
short explanation. 5. What is the relationship between glucose and triglycerides as skeletal muscle energy
substrates as a function of activity level? (2 marks)
during low--> moderate activity glucose remains the more important metabolic fuel
with glycogen breakdown being stimulated in both liver and muscle.
with sustained activity, glycogen stores become depleted and triglycerides from skeletal muscle
and adipose tissue are mobilized to an increasing extent...
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- Fall '13