SBC Equipment Selection and Maintenance 3

Question 1

What should a trainer do if a stability ball shows visible surface cracks or deep abrasions during a pre-session inspection?

Accepted Answer

Remove it from service immediately and replace it

Answer

Continue using it but limit the session to lower-intensity exercises

Answer

Apply adhesive tape over the cracks and monitor closely

Answer

Deflate it slightly to reduce pressure on the weakened area

Question 2

Which stability ball size is recommended for clients between 5'8" and 6'0" tall?

Accepted Answer

65 cm

Answer

55 cm

Answer

75 cm

Answer

85 cm

Question 3

How does a slightly under-inflated stability ball affect exercise difficulty compared to a properly inflated one?

Accepted Answer

It decreases instability and may make exercises easier or safer for beginners

Answer

It increases instability and makes exercises harder

Answer

It has no effect on instability or exercise difficulty

Answer

It increases the risk of rolling but reduces core activation

Question 4

What is a primary reason why stability balls should NOT be used on surfaces with sharp debris or rough concrete?

Accepted Answer

Sharp debris can puncture or abrade the ball material

Answer

Rough surfaces reduce the ball's bounce characteristics

Answer

Concrete surfaces make it harder to maintain grip

Answer

Rough surfaces cause excessive noise during rolling exercises

Question 5

Which of the following is the best indicator that a stability ball needs to be replaced rather than re-inflated?

Accepted Answer

The ball has visible cracks, bubbles, or fails to hold air after repeated inflation

Answer

The ball's color has faded from sun exposure

Answer

The ball's surface feels slightly tacky after cleaning

Answer

The ball rolls slightly to one side on a flat surface

Question 6

What is the purpose of the plug or valve on a stability ball?

Accepted Answer

It seals the air chamber to maintain inflation and can be removed to deflate the ball

Answer

It regulates the maximum inflation pressure automatically

Answer

It connects the ball to a pressure gauge for monitoring

Answer

It prevents over-inflation by releasing excess air

Question 7

When should a trainer consider using a textured or anti-slip stability ball rather than a standard smooth surface ball?

Accepted Answer

When working with clients who tend to slide during supine or prone exercises

Answer

When working with advanced athletes who need more instability

Answer

When performing exercises in high-humidity environments only

Answer

When the client's weight exceeds the standard ball capacity