SBC Equipment Selection and Maintenance 2

Question 1

Which material is most commonly used in the construction of high-quality stability balls?

Accepted Answer

PVC (polyvinyl chloride)

Answer

Most stability balls are constructed from PVC, which offers a balance of flexibility, durability, puncture resistance, and cost-effectiveness suitable for fitness applications.

Question 2

What is the recommended stability ball size for a client who is 6'0" or taller?

Accepted Answer

75 cm

Answer

Clients who are 6'0" or taller generally require a 75 cm ball to maintain proper 90-degree hip and knee angles when seated.

Question 3

What is the best practice for cleaning a stability ball after use in a group fitness class?

Accepted Answer

Wipe with a damp cloth using a mild soap or disinfectant spray approved for rubber/PVC

Answer

Stability balls should be cleaned with a mild soap solution or disinfectant specifically approved for PVC/rubber, as harsh chemicals like undiluted alcohol can degrade the material.

Question 4

When storing stability balls in a fitness facility, which storage method is most appropriate?

Accepted Answer

Store in a ring rack or ball bin that supports them without stacking pressure

Answer

Ring racks and ball bins provide stable, supported storage that prevents balls from rolling, becoming deformed from pressure, or creating trip hazards.

Question 5

A stability ball that feels soft and deforms significantly under moderate pressure most likely needs which intervention?

Accepted Answer

Additional inflation to restore proper firmness

Answer

A soft ball typically just needs more air; balls naturally lose some pressure over time and should be re-inflated to the manufacturer's recommended diameter.

SBC - Stability Ball Certification Practice Test

SBC - Stability Ball Certification Practice Test

SBC Equipment Selection and Maintenance 2