Cardiovascular adaptations to chronic endurance training include a(n)________ at a given fixed submaximal exercise intensity.
A. increase in stroke volume and a decrease in heart rate
B. decrease in stroke volume and increase in heart rate
C. decrease in stroke volume and heart rate
D. increase in stroke volume and heart rate
正解:A
質問 2:
What is the major muscle used to flex the hip joint?
A. Gluteus maximus
B. Iliopsoas
C. Vastus lateralis
D. Biceps femoris
正解:B
質問 3:
Type II muscle fibers:
A. Have a high capacity to generate energy from fat.
B. Have a high capacity to generate energy through the electron transport system.
C. Are recruited at a higher percentage of maximum force than Type I fibers.
D. Have high endurance capabilities.
正解:C
質問 4:
A 50-year-old woman who quit smoking 5 months ago with a BP of 120/90 mmHg, a BMI of 29 kg/m2, a LDL of 135 mg/dL, and a HDL of 70 mg/dL wants to start an exercise program. How many net positive risk factors does she have?
A. 4
B. 5
C. 3
D. 2
正解:D
質問 5:
Overtraining symptoms may include ______.
A. decreased creatine kinase levels in the skeletal muscle
B. increased body weight
C. reduced submaximal heart rates
D. decreased neuromuscular strength
正解:D
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