Question

QUESTION 6

1. Physiologic changes associated with aerobic training include increases in all of the following except:

   	A.	Reaction time
   	B.	Heart volume
   	C.	Mitochondria
   	D.	Muscle capillarization

Answer 1

The correct answer would be (A) Reaction time.
Reaction time is defined as the time required from the application of the stimulus to the response to that particular stimulus. Anaerobic exercise helps in decreasing the reaction time. Lesser time take to respond or decreased reaction time helps to monitor movements for a longer period of time and can also help in starting the movement earlier.

All other parameters given here i.e. heart volume, mitochondria and muscle capillarization increase in response to the body's need for more energy. Heart increases to pump out more blood to meet body's demand, mitochondria helps generating energy and muscle capillarization helps delivering more blood and hence more oxygen to the muscles.