Table of contents

1. Introduction to Anatomy & Physiology5h 43m
2. Cell Chemistry & Cell Components12h 36m
3. Energy & Cell Processes10h 6m
4. Tissues & Histology10h 3m
5. Integumentary System2h 20m
6. Bones & Skeletal Tissue2h 16m
7. The Skeletal System2h 35m
8. Joints2h 17m
9. Muscle Tissue2h 33m
10. Muscles1h 11m
11. Nervous Tissue and Nervous System1h 35m
12. The Central Nervous System1h 6m
- Introduction to the Central Nervous System
  18m
- The Cerebrum
  48m
13. The Peripheral Nervous System1h 26m
14. The Autonomic Nervous System1h 38m
15. The Special Senses2h 41m
16. The Endocrine System2h 48m
17. The Blood3h 22m
18. The Heart3h 42m
19. The Blood Vessels3h 35m
20. The Lymphatic System3h 16m
21. The Immune System14h 37m
22. The Respiratory System3h 20m
23. The Digestive System2h 5m
24. Metabolism and Nutrition4h 0m
25. The Urinary System2h 39m
26. Fluid and Electrolyte Balance, Acid Base Balance37m
27. The Reproductive System2h 5m
28. Human Development1h 21m
29. Heredity3h 32m

4. Tissues & Histology

Introduction to Muscle Tissue

Anatomy & Physiology

4. Tissues & Histology

Introduction to Muscle Tissue

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Multiple Choice

During plyometric training, what type of muscle contraction occurs between landing and jumping?

Isotonic contraction

Isometric contraction

Concentric contraction

Eccentric contraction

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Verified step by step guidance

Understand the types of muscle contractions: Eccentric contraction occurs when a muscle lengthens under tension, often to control or decelerate movement. Concentric contraction involves muscle shortening, while isometric contraction involves no change in muscle length.

Analyze the scenario: During plyometric training, the phase between landing and jumping involves absorbing the impact of landing, which requires the muscles to lengthen under tension to control the downward motion.

Relate the concept to the activity: When landing, the muscles (e.g., quadriceps) work eccentrically to decelerate the body and control the impact forces. This is a key characteristic of eccentric contraction.

Compare the options: Isotonic contraction refers to movement with constant tension, which includes both concentric and eccentric contractions. Isometric contraction involves no movement, and concentric contraction involves muscle shortening, which occurs during the jumping phase, not landing.

Conclude the reasoning: Based on the analysis, the correct type of muscle contraction during the landing phase of plyometric training is eccentric contraction, as the muscles lengthen under tension to control the impact.