assessing aerobic fitness

Question 1

what are the 3 main energy pathways?

Answer 1

• phosphocreatine system (anaerobic alactic)
• anaerobic glycolysis (lactic)
• aerobic system.

Question 2

what plays a role in the ability to reach VO2 max?

Answer 2

• fats and CHO are used during aerobic exercise, which is measured by VO2 max

Question 3

what does aerobic fitness measure?

Answer 3

• the ability to consume O2 to perform exercise. (VO2)
• the ability to consume oxygen to perform maximal exercise (VO2max)

Question 4

what is oxygen consumption?

Answer 4

• the volume of O2 used by the body under given conditions.

Question 5

what is VO2max?

Answer 5

• when O2 is measured during exercise.
• the max volume of O2 one can comesume during exhausting exercise or max rate of O2.

Question 6

what is (1) absolute and (2) relative VO2?

Answer 6

1. absolute
   - total volume of O2 taken into the body
   - measured in L/min or mL/min
2. relative
   - volume of O2 taken into the body relative to body weight.
   - measured in ml/ kg/ min

Question 7

what are the influencers of VO2 max?

Answer 7

• mode of exercise (what exercise are they doing)
• heredity (heart size, lung capacity)
• age
• sex
• physical training
• body composition

Question 8

what is the difference between VO2 max peak and plateau.

Answer 8

peak
- is when you reach the max amount of O2 someone can consume and then there is a decrease in exercise performance.

plateau
- is someone who reaches there max but they don’t increase or decrease in performance.

Question 9

when selecting which aerobic fitness test you would do, what would you consider?

Answer 9

• what are the reasons for the test
• who is the client being tested
• is maximal or sub maximal test recommended
• is it reliable and valid.

Question 10

what are the most common modes for aerobic fitness testing?

Answer 10

• treadmills
• cycle ergometers
• steps
• walking or running for a predetermined amount of time.

Question 11

what are 3 types of aerobic tests?

Answer 11

• direct maximal
• indirect maximal
• indirect submaximal

Question 12

what are direct maximal tests?

Answer 12

• this is considered to be the most valid measure of functional capacity of the aerobic system.
• you have to wear a mask as it is a direct measurement of VO2 and VCO2.

Question 13

what is indirect maximal test?

Answer 13

• this is a test in which is voluntary by the individual performing it. and they decide when they stop (beep test)
• predicts VO2 max using equations

Question 14

what are indirect vo2 tests pros and cons?

Answer 14

pros
- test alot of people quickly

con
- people work in groups
- people with lower body injuries for more prone to re injuring.

Question 15

what things must someone use for sub maximal VO2 testing?

Answer 15

• steady state heart rate for each exercise
• HR, VO2, workload
• HRmax 220-age (submaximal is 85% of the predicted HRmax)
• mechanical efficiency.

Question 16

in post exercise, what are the aerobic recovery procedures?

Answer 16

1. active recovery. after termination of aerobic activity have the client slowly bring down there HR with very light exercise.
2. after active recovery client can sit in a chair to help reduce HR.
3. measure the clients HR and BP, if it is still high then have them sit for another 2 minutes.