Multiple Choice
What type of muscle contraction maintains constant tension in the muscle as the length changes?
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4. Tissues & Histology
Types of Muscle Tissue
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Which of the following activities would predominantly use fast-twitch muscle fibers?
A
Cycling at a steady pace
B
Sprinting
C
Marathon running
D
Yoga
Verified step by step guidance1
Understand the characteristics of fast-twitch muscle fibers: Fast-twitch fibers are designed for short bursts of power and speed. They fatigue quickly but are capable of generating more force compared to slow-twitch fibers.
Identify the type of activities that require quick, powerful movements: Activities that involve rapid, intense exertion typically rely on fast-twitch fibers.
Analyze the options given: Cycling at a steady pace, marathon running, and yoga are activities that require endurance and sustained effort, which predominantly use slow-twitch fibers.
Consider the nature of sprinting: Sprinting is a high-intensity activity that requires quick bursts of speed and power, making it reliant on fast-twitch muscle fibers.
Conclude that sprinting is the activity that predominantly uses fast-twitch muscle fibers due to its need for rapid and powerful muscle contractions.
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