L20;C17

Question 1

HR is higher in children due to which physiological reason?

Answer 1

Smaller hearts

Question 2

With respect to the lung volume, the more you grow, what increases?

Answer 2

The capacity for lung volume increases

Question 3

What is metabolic function related to? What does it do with age?

Answer 3

Metabolic function is related to muscle mass, strength, and cardio respiratory function. It increases with age.

Question 4

What happens to maximal aerobic capacity going into puberty with males and females?

Answer 4

It starts to plateau in females but keeps increasing with males

Question 5

Is children’s economy of effort greater or worse than adults?

Answer 5

Worse, children O2 consumption is a lot greater than adults

Question 6

What kind of performance is limited in children compared to adults? Why?

Answer 6

Anaerobic performance is limited in children, this is due to the immature glycogen system and capability to utilize glycolysis

Question 7

What kind of storage is similar in adults and children?

Answer 7

ATP-PCr

Question 8

What kind of response is greater in children compared to adults? What does it stimulate?

Answer 8

A stress response, this is greater to stimulate more glucose uptake

Question 9

How does aerobic training In children impact performance and VO2Max?

Answer 9

• little to no change in Vo2 max

- performance increases due to improved running economy

Question 10

How does aerobic training In adolescents impact performance and VO2Max?

Answer 10

• more of a marked change in Vo2
• increase in FFA plays a role
• likely due to increase in heart size and SV

Question 11

What three factors does anaerobic training in children increase?

Answer 11

1. Resting PCR-ATP and glycogen
2. PFK activity (this means more glycogen will be present)
3. Maximal blood lactate (due to anaerobic workouts)

Question 12

What kind of training can be used in children as it can be used in adults?

Answer 12

Anaerobic programs

Question 13

What is thermal stress? Explain the mass to SA ratio

Answer 13

Thermal stress is when children have their higher SA compared to mass ratio. This is why they got hot easier. There is a decrease in sweat and slow heat accumulation

Question 14

If you produce less sweat, what capacity is limited?

Answer 14

You cooling capacity and temperature regulation

Question 15

How do children and sweat glands relate to each other?

Answer 15

Children have smaller sweat glands and therefore less secretion

Question 16

How does catecholamines influence rate of sweat glands?

Answer 16

The lower the catecholamine secretion is, the lower the sweat rate is