Question 31 Improvements in VO 2 max within the first week of training can be mo
ID: 3516208 • Letter: Q
Question
Question 31
Improvements in VO2max within the first week of training can be mostly attributed to an increase in...
A.
a-v O2 difference.
B.
mitochondrial density.
C.
heart rate.
D.
plasma volume.
Question 38
Which of the following statements is NOT TRUE regarding the oxygen-hemoglobin dissociation curve?
The curve shifts to the right during exercise due to a decrease in pH.
The curve shifts to the right during exercise due to an increase in temperaturer
The curve shifts to the left during exercise at altitude.
The steep portion of the curve represents a condition where small decreases in PO2 result in rapid offloading of O2 from hemoglobin, which occurs at the tissues.
The curve for oxygen-myoglobin dissociation looks different from this curve, because myoglobin’s affinity for O2 is greater than hemoglobin.
A.
a-v O2 difference.
B.
mitochondrial density.
C.
heart rate.
D.
plasma volume.
Explanation / Answer
31. C heart rate.
During the initial weeks of exercise the firstly occuring activity that increases VO2max seems to be heart rate as mitochondrial density takes time and continuous exercise to increase.
38. C The curve shift to the left during exercise at altitude.
At altitue PO2 decrese, saturation pecentage decrease, This couse the curve more downward and change in shape.Rest are all correct.
Related Questions
drjack9650@gmail.com
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.