Question

1. Body composition is defined as

Answer 1

"1. Body composition is defined as
D. ratio of muscle to fat.
2. Slow-twitch fibers are designed for
D. endurance.
3. Which one of the following choices is a by-product of ATP breakdown?
D. ADP and phosphorous
4. A tendon serves what purpose for a muscle?
C. It serves as an attachment point to bone.
5. Most joints in the body form _______ levers.
B. first-class
6. Which one of the following statements concerning good posture is correct?
D. Good posture may help to improve balance.
7. Which one of the following choices is considered part of the pelvic girdle?
C. Buttocks
8. Fitness professionals know that good posture
B. is a habit that can be learned and maintained.
9. One of the positive health-related benefits of muscular fitness is
D. increased endurance during exercise.
10. The sagittal plane divides the body
D. into left and right halves.
11. How does a normal spine appear on an x-ray?
B. With natural curves in the neck and lower back
12. Based on the factors of stability, which of the following choices would be the most unstable lift?
A. Leg curl
13. When you flex your arm, you're performing a/an _______ contraction.
C. concentric
14. Which three body systems benefit from good posture?
B. Digestive, circulatory, and respiratory
15. Which one of the following minerals is essential for both bone health and muscle contractions?
C. Iron
16. Which one of the following types of tissue covers and separates skeletal muscles, providing shape and aiding in function?
B. Fascia
17. The most common debilitating disorder among Americans under age 45 is
C. tension headaches.
18. Tension headaches usually begin in the
D. neck.
19. When you sit with good posture, your spine should be
A. very relaxed.
20. A/an _______ spine is one that allows for natural curves and arches.
C. neutral
21. Posture and muscular balance can usually be improved by
A. exercising and stretching.
22. Which one of the following types of joints is a freely movable joint?
D. Synovial
23. Postural muscles tend to _______ if they aren't regularly stimulated to produce adequate force.
C. weaken
24. Aerobic production of ATP comes from _______ during high-intensity training.
D. carbohydrates
25. Standing on your toes is an example of which type of lever?
D. Second class"