10. Muscular System II Quizizz

What type of exercise involves maintaining a constant speed throughout the movement?

• Isotonic

• Isometric

• Isokinetic

• Aerobic

What is the primary characteristic of isotonic muscle contraction?

• Muscle length changes

• Muscle length remains constant

• Muscle tension decreases

• Muscle tension remains constant

What type of muscle contraction occurs when the bicep shortens and the hand moves towards the shoulder under tension?

• Concentric contraction

• Eccentric contraction

• Isometric contraction

• Isotonic contraction

What type of muscle contraction occurs when the bicep lengthens and the hand moves downwards under tension?

• Concentric contraction

• Eccentric contraction

• Isometric contraction

• Isotonic contraction

What is the primary characteristic of isokinetic muscle contraction?

• It involves maximal force at a constant speed.

• It involves minimal force with variable speed.

• It involves maximal force with variable speed.

• It involves minimal force at a constant speed.

Which type of muscle fibre is deep red and contracts slowly?

• Fast twitch fibres

• Slow twitch fibres

• Intermediate fibres

• White fibres

What determines the amount of force applied by muscles?

• The number and thickness of fibres

• The length of the muscle

• The temperature of the body

• The amount of blood flow

Which type of muscle fibre contracts quickly and powerfully but tires easily?

• Slow twitch fibres

• Fast twitch fibres

• Red fibres

• Elastic fibres

What type of muscle fibers are primarily used by sprinters?

• Slow twitch fibers

• Fast twitch fibers

• Intermediate twitch fibers

• Hybrid twitch fibers

Which type of muscle fibers are associated with marathon runners?

• Fast twitch fibers

• Slow twitch fibers

• Intermediate twitch fibers

• Hybrid twitch fibers