Muscle Types and Fibres

What are fast twitch muscle fibers known for?

• Long endurance capabilities

• Slow contraction speed

• Short bursts of strength or speed

• High resistance to fatigue

Which type of muscle fibers are more suited for endurance activities?

• Slow-twitch muscle fibers

• Medium-twitch muscle fibers

• Fast-twitch muscle fibers

• Quick-twitch muscle fibers

What is the primary energy source for fast twitch muscle fibers?

• Fat

• Vitamins

• Glycogen

• Protein

How do slow twitch muscle fibers differ from fast twitch fibers in terms of contraction speed?

• Slow twitch muscle fibers contract instantly compared to fast twitch fibers.

• Slow twitch muscle fibers contract more slowly than fast twitch fibers.

• Slow twitch muscle fibers contract at the same speed as fast twitch fibers.

• Slow twitch muscle fibers contract faster than fast twitch fibers.

Which type of muscle fibers are more resistant to fatigue?

• Type IV muscle fibers

• Type II muscle fibers

• Type I muscle fibers

• Type III muscle fibers

What is the color of slow twitch muscle fibers?

• Yellow

• Blue

• Red

• Green

Which type of muscle fibers are recruited first during low-intensity activities?

• Type I (slow-twitch) muscle fibers

• Type IV muscle fibers

• Type II (fast-twitch) muscle fibers

• Type III muscle fibers

What is the primary energy source for slow twitch muscle fibers?

• Proteins

• Aerobic metabolism

• Fats

• Anaerobic metabolism

What is the primary function of fast twitch muscle fibers?

• Generate short bursts of strength or speed

• Generate long-lasting endurance

• Produce energy through aerobic metabolism

• Support flexibility and mobility

How do fast twitch muscle fibers differ from slow twitch fibers in terms of force production?

• Slow twitch fibers produce higher force output than fast twitch fibers.

• Fast twitch fibers produce force at the same rate as slow twitch fibers.

• Slow twitch fibers are more efficient at producing force than fast twitch fibers.

• Fast twitch fibers produce higher force output than slow twitch fibers.