Question

(01.09 lc)
when you have good ______, you are able to flex, extend, and rotate your spine. (5 points)

a core endurance

b muscular flexibility

c muscular control

d core strength

question 2 (5 points)
(01.09 lc)
benefits of a strong core include (5 points)

a greater body control during movement

b more efficient exertion of power

c more effective metabolism and digestion

d greater flexibility of the lower body

Explanation:

Question 1

To solve this, we analyze each option:

• Option a: Core endurance relates to how long core muscles can work, not directly to spine movement (flex, extend, rotate).
• Option b: Muscular flexibility is about muscle's ability to stretch, but the question is about spine movement which is more related to core strength or control? Wait, no—wait, actually, the ability to flex, extend, and rotate the spine is related to muscular flexibility? No, wait, core strength (option d) or muscular control (option c)? Wait, no, let's re-examine. The key is the action: flex, extend, rotate spine. Muscular flexibility is about muscle's range of motion, but core strength (d) is about the strength of core muscles (abdomen, back) that support the spine. Wait, no, the question is "when you have good ____, you can flex, extend, rotate spine". Let's think again. Core strength (d) allows control over spine movement? Wait, no, maybe I made a mistake. Wait, the options: core endurance (a) is about stamina, muscular flexibility (b) is muscle stretch, muscular control (c) is controlling muscles, core strength (d) is strength of core. The ability to flex, extend, rotate spine is due to core strength? Wait, no, actually, the correct answer is d? Wait, no, let's check again. Wait, the action is flex, extend, rotate spine. Core strength (the strength of the core muscles) enables these movements. Muscular flexibility is about muscle's ability to stretch, not about moving the spine. Muscular control is about controlling muscles, but core strength is more about the strength to move the spine. Wait, maybe the correct answer is d: core strength. Wait, no, maybe I'm wrong. Wait, let's think of definitions. Core strength: the strength of the muscles in the torso (abdomen, back, pelvis) that support the spine. Having good core strength allows you to move the spine (flex, extend, rotate). Muscular flexibility is about how far a muscle can stretch, not about moving the spine. So the correct option is d.

Analyze each option for benefits of a strong core:

• Option a: A strong core helps in body control during movement, as the core stabilizes the body.
• Option b: Power exertion is more related to muscle strength (like legs, arms) rather than core.
• Option c: Metabolism and digestion are not directly benefits of core strength (core strength is about movement, stability).
• Option d: Core strength doesn't affect lower body flexibility (lower body flexibility is about leg muscles, hips).

So the correct option is a.

Answer:

d. core strength

Question 2