There is direct relationship between oxygen, energy and work.
There is direct relationship between oxygen, energy and work because if oxygen consumption is increased, ATP production as well as work rate also increases. Direct relation means if one increase the other also increase and vice versa.
The human body is only 25% efficient, therefore you lose approximately 75% of energy as heat so we can say that 25% percentage of energy goes to work and 75% percentage is lost into heat energy during exercise.
The O2 uptake of glucose oxidation has been converted into heat production of 21.1 kJ. This means that 1 liter O2 produces 21.1 kJ of heat energy.
So we can conclude that there is direct relationship between oxygen, energy and work.
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