Wheels and Tires

Question 1

what does moving the wheel axle posterior do to energy required for propulsion, turning radius, and stability?

Answer 1

1. greater energy for propulsion
2. larger turning radius
3. increased stability

Question 2

which tire requires more maintenance - solid rubber or pneumatic

Answer 2

pneumatic

Question 3

advantage and disadvantage of spoke wheels

Answer 3

advantage - lighter and better shock absorption.

disadvantage - less durable and requires more maintenance.

Question 4

which tire is rougher ride - solid rubber or pneumatic

Answer 4

solid rubber

Question 5

what happens to turning radius, maneuverability and stability when moving the caster more posterior

Answer 5

1. smaller turning radius
2. better maneuverability
3. less stability

Question 6

advantage and disadvantage of mag wheels

Answer 6

advantage - more durable and less maintenance required.

disadvantage - heavier and less shock absorption

Question 7

what kind of handrim is provided to patients who want a more ergonomic wrist and hand position

Answer 7

“natural fit handrim”

Question 8

2 main disadvantages of camber

Answer 8

1. increased tire wear

2. increased width of the chair

Question 9

size of caster and turning radius

Answer 9

the smaller the caster, the smaller the turning radius

Question 10

What is the best option for patients who have one arm to propel to minimize risk of injury

Answer 10

power wheelchair

Question 11

which tire is best for carpets

Answer 11

pneumatic tire

Question 12

For everyday wheelchairs, what is the average camber

Answer 12

2-5 degrees

Question 13

3 main advantages of wheelchair camber

Answer 13

1. easier to turn
2. more lateral stability
3. easier to propel

Question 14

average caster size that gives best overall indoor maneuverability and outdoor performance

Answer 14

5-6 inches

Question 15

which tire runs the risk of flat tire

Answer 15

pneumatic tire

Question 16

What’s more common, mag wheels or spoke wheels?

Answer 16

mag wheels

Question 17

size of caster and maneuverability of wheelchair

Answer 17

the smaller and narrower the caster, the lighter and more maneuverable the wheelchair

Question 18

size of caster on basic wheelchair

Answer 18

standard size is 8 inches

Question 19

which tire is heavier - solid rubber or pneumatic

Answer 19

solid rubber

Question 20

to do wheelies on a wheelchair, do you move axle posterior or anterior

Answer 20

anterior

Question 21

What is camber?

Answer 21

The angle of the wheel

Question 22

what does moving the wheel axle anterior do to energy required for propulsion, turning radius, and stability?

Answer 22

1. less energy to propel
2. smaller turning radius
3. less stability

Question 23

if patient has shoulder pain from propelling wheelchair, do you move wheel axle posterior or anterior?

Answer 23

anterior, to minimize GH extension

Question 24

Which kind of tire is best to avoid flat tires

Answer 24

solid rubber tire

Question 25

which tire is smoother and more comfortable - solid rubber or pneumatic

Answer 25

pneumatic

Question 26

what dictates the degree of camber that is chosen

Answer 26

the width of the wheelchair to make sure it can still fit through doorways