Why would it be difficult to define/determine true “mechanical efficiency” of running?
Why would it be difficult to define/determine true “mechanical efficiency” of running?
Homework Answers
The conversion of the metabolic to work is defined as the mechanical efficiency.
During running,energy(ATP) is required and this is obtained through the oxidation of glucose(in normal cases).The energy when ATP hydrolysis to ADP and inorganic phosphate.Since during this hydrolysis some energy is lost as heat, therefore the true energy change or efficiency cannot be calculated.
ATP 
ADP +Pi+
heat.
Therefore only 65-75% of the energy is available for muscle contraction.
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