As a result of long term aerobic training the body tends to depend more on as a substrate for metabolism
a. fat
b. carbohydrate
c. protein
d. there is no change in substrate

Fat is a substrate on which our body depends during aerobic training for metabolism.

Explanation: Aerobic literally means "with oxygen", and refers to use of oxygen in muscles' energy generating process. In such exercise, Oxygen is used to "burn" fats and glucose in order to produce Adenosine triphosphate the basic energy carrier for all cells. Initially during aerobic exercise glycogen is broken down to produce glucose, but in its absence, fat metabolism is initiated instead. The more efficient your body becomes through exercise, the easier it is for your body to convert fat into fuel. Fat allows to sustain our workouts for a long duration to see weight loss, cardiovascular and stress-reducing exercise benefits  

As a result of long term aerobic training the body tends to depend more on __Fat__ as a substrate for metabolism.

Explanation:

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Keywords: Metabolism \ aerobic \ fat \ carbohydrate \ energy

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