Chapter 13: exercise physiology
A single bout of resistance exercise training increases muscle protein synthesis by as much as __% above resting levels
120-150
Following a single bout of resistance exercise training, muscle protein synthesis can remain elevated above baseline for as much as __ in both trained and untrained individuals
40-50 hours
Heritability (i.e genetics) determines approximately __ % of VO2 max variability in sedentary adults
50
High responders to endurance exercise training (i.e individuals that achieve large increases in VO2 max) can achieve up to __% improvement in VO2 max following a prolonged and intense training program
50
The enhanced capacity of the trained muscle to use fatty acids as a fuel results in
All are correct: increased uptake of fatty acids; decreased utilization of muscle glycogen; sparing of blood glucose
The initial decrease in VO2 max with detraining occurs because skeletal muscle adaptions (a-VO2 difference) are lost
false
The majority of evidence demonstrates that resistance training-induced muscle hypertrophy is the result of muscle fiber hyperplasia
false
Following an acute bout to endurance exercise training, the increase in mitochondrial biogenesis occurs within __ following the completion of the exercise session
hours
Which of the following factors contributes to the endurance exercise training-induced improvement in VO2 max
increase maximal stroke volume
Which of the following factors does NOT contribute to the endurance exercise training-induced increases in fat metabolism during exercise
increased fat storage in the liver
Which of the following physiological factors does NOT contribute to the endurance exercise training-induced increase in the maximal a-VO2 difference
increased hemoglobin in the blood
Which of the following factors does NOT contribute to the endurance exercise training-induced improvement in stroke volume during exercise?
increased peripheral resistance
After a 15-week program of endurance exercise training, which of the following cardiovascular variables does NOT decrease after 14 days of detraining?
maximal heart rate
During the first 10 weeks of a resistance training program, the initial increase in muscular strength are due primarily to
neural adaptions
Endurance training results in increased mitochondrial and capillary density in muscle but has no effect on muscle glycolytic capacity. This is an example of what training principle
specificity
Cross-sectional studies demonstrate that the physiological variable responsible for the large variation in VO2 max across the normal population is maximal
stroke volume
The increase in VO2 max that occurs following 4 months of endurance exercise training results from an increase in both maximal cardiac output and maximal a-VO2 difference. Relatively short durations of endurance exercise training (e.g 1-4months) increases VO2 max primarily by increasing
the maximal cardiac output
Research indicates that anyone can increase his or her VO2 max with training, yet a genetic predisposition is required to have a VO2 max comparable to that of an elite endurance athlete
true