Viva Q&A

Question 1

What is the convex/concave rule

Answer 1

Convex- where the moving joint surface is sliding in the opposite direction of the angular movement of the bone

Concave- sliding in the same direction as the angular movement of the bone

Used to decide the direction of the glide. One joint surface convex the other concave

Question 2

If aiming to reduce pain, why use different grades?

Answer 2

Grade I- severity or irritability is high as more controlled
Grade II- less severe or irritable causes as has greater pain relieving effects
Grade III& IV- also have pain relieving effects so could be used in cases where pain is after the onset of resistance

Question 3

If aiming to improve ROM, what do different grades do?

Answer 3

Only grade III and IV work in resistance so have a mechanical effect on tissues
Grade III- used to maintain ROM
Grade IV- used to increase ROM as it work at the end of available range

Question 4

For reducing pain, why use different sets?

Answer 4

Sets aim to reduce pain and the more sets, the greater the pain relieving effect
Depends on severity and irritability and decision is based on risk of aggravating the condition

Question 5

For reducing ROM, why use different sets?

Answer 5

Greater number of applications results in greater elongation of tissues. This is why sets are higher than for pain

Question 6

For reducing pain, why use different durations?

Answer 6

The longer the application the greater the effects and the longer it will last

Question 7

For improving ROM, why use different durations?

Answer 7

Longer application results in creator elongation of tissues, recommended that stretch is applied for minimum of 30 seconds to induce plastic deformation in connective tissues

Question 8

What are the treatment options for 1) reducing pain 2) increase ROM

Answer 8

1. For reducing pain
   Physiological mobilisation, grade I/II, fewer sets, longer duration
2. For increasing ROM
   Accessory mobilisation, grade III/IV, more sets, shorter duration