SBC Core Anatomy and Physiology 3

Question 1

Which plane of motion is primarily challenged during a lateral ball roll exercise?

Accepted Answer

Frontal plane

Answer

A lateral ball roll moves the body side-to-side, which occurs in the frontal plane and challenges lateral core stabilizers.

Question 2

The gluteus medius is important in stability ball training because it controls:

Accepted Answer

Hip abduction and pelvic stabilization

Answer

The gluteus medius abducts the hip and prevents pelvic drop during single-leg stability ball exercises, making it a key lower-body stabilizer.

Question 3

Which reflex arc is most engaged when a client corrects balance on an unstable stability ball?

Accepted Answer

Myotatic (stretch) reflex

Answer

The myotatic stretch reflex causes rapid muscle contraction in response to sudden muscle lengthening, helping clients self-correct on the unstable ball surface.

Question 4

Slow-twitch (Type I) muscle fibers are recruited first during stability ball postural holds because they:

Accepted Answer

Are fatigue-resistant and suited for sustained contractions

Answer

Type I fibers are fatigue-resistant and aerobically efficient, making them ideal for the prolonged low-level contractions required to hold posture on the stability ball.

Question 5

What does the term 'neuromuscular efficiency' mean in the context of stability ball training?

Accepted Answer

The ability of the nervous system to recruit muscles effectively to produce and reduce force

Answer

Neuromuscular efficiency is the nervous system's ability to optimally recruit motor units to produce, reduce, and stabilize force — improved through unstable surface training on the stability ball.

SBC - Stability Ball Certification Practice Test

SBC - Stability Ball Certification Practice Test

SBC Core Anatomy and Physiology 3