CSCS Flexibility & Mobility Training 2

Question 1

According to NSCA recommendations, how long should a static stretch be held to effectively improve range of motion?

Accepted Answer

15–30 seconds

Answer

The NSCA recommends holding static stretches for 15–30 seconds per repetition as sufficient to produce ROM improvements while minimizing acute performance decrements.

Question 2

The muscle spindle's primary role in flexibility is to:

Accepted Answer

Detect rapid changes in muscle length and trigger a protective stretch reflex

Answer

The muscle spindle (intrafusal fiber) responds to rapid muscle lengthening by initiating the myotatic (stretch) reflex, causing the muscle to contract and resist further stretch.

Question 3

Which stretching modality generally produces the GREATEST acute improvements in range of motion?

Accepted Answer

PNF stretching

Answer

PNF stretching consistently produces the largest acute gains in ROM by combining isometric muscle contractions with passive stretch, leveraging both autogenic and reciprocal inhibition.

Question 4

Ballistic stretching is characterized by:

Accepted Answer

Rapid, bouncing movements that use momentum to exceed the normal range of motion

Answer

Ballistic stretching uses rapid, repetitive bouncing movements to force the limb beyond its normal range, which can activate the stretch reflex and increase injury risk.

Question 5

An athlete standing on one leg and pulling the opposite foot toward the glutes to stretch the quadriceps is an example of:

Accepted Answer

Active (dynamic) flexibility

Answer

Using one's own muscular force to achieve and hold a stretched position without external assistance is classified as active flexibility.

(CSCS) Certified Strength & Conditioning Specialist Practice Test

(CSCS) Certified Strength & Conditioning Specialist Practice Test

CSCS Flexibility & Mobility Training 2