Exam 3 Flashcards Preview

PT 711-Kinesiology > Exam 3 > Flashcards

Flashcards in Exam 3 Deck (46):
1

average CoM vertical displacement during gait

5 cm

2

average CoM side to side displacement during gait

4 cm

3

what contributes most to conserving energy during gait:

1. ankle rotation
2. pelvic obliquity
3. knee flexion
4. frontal plane pelvic rotation

4

pronation

eversion
abduction
dorsiflexion

5

supination

inversion
adduction
plantar flexion

6

normal dorsiflexion ROM

15-25 degrees

7

normal plantarflexion ROM

40-55 degrees

8

normal subtalar inversion ROM

23 degrees

9

normal subtalar eversion ROM

13 degrees

10

normal transverse tarsal inversion ROM

20-25 degrees

11

normal transverse tarsal eversion ROM

10-15 degrees

12

normal MTP extension ROM

65-85 degrees

13

normal MTP flexion ROM

30-40 degrees

14

arthrokinematics of subtalar joint

-posterior facet
-concave talar facet on convex calcaneus

15

purpose of the subtalar joint

to adapt to terrain

16

usual bone movement of subtalar joint

stable calcaneus and a moving talus

17

spring ligament

supports transverse tarsal stability
-supports talar head during weight bearing

18

keystone of medial longitudinal arch

talonavicular joint

19

keystone of the transverse arch

middle cuneiform

20

purposes of arces of the foot

-stability and resiliency
-shock absorption
-load bearing

21

passive support of medial longitudinal arch

plantar fascia

22

windlass effect

: plantar fascia is stretched by hyperextension of MTP's, raising the arch

23

purpose of distal intertarsal joints

-assist transverse tarsal joint in pronation and supination-transver to forefoot
-transverse arch support

24

arthrokinematics of distal intertarsal joints

convex navicular facets, concave cuneiform facets
-mostly gliding

25

normal amount of TMJ depression

35-55 mm

26

normal amount of TMJ protrusion

6-8 mm

27

normal TMJ lateral deviation

10 mm to each side

28

translation of TMJ occurs in:

superior portion of joint

29

roll of TMJ occurs in:

inferior portion of joint

30

motions of protrusion:

anterior and inferior slide

31

TMJ closed pack postion

teeth tightly clenched

32

TMJ open pack position

mouth slightly open, lips together, teeth not in contact

33

TMJ occlusal position

gentle contact of teeth

34

time in swing phase during gait

40%

35

time in stance phase during gait

60%

36

time of double limb support during gait

10% double
40% single
10% double
40% single

37

differences between stride cycle and gait cycle

-no toe off in running
-no single leg support in running
-reversed % spent in phases
-toe out increases
-center of mass height is lower at midstance with running

38

subtalar movement in the frontal plane during gait:

-inversion at heel strike
-eversion through stance
-inversion with toe off

39

masseter actions

-elevations
- ipsilateral lateral deviation
-protrusion

40

medial pterygoid actions

-elevations
-contralateral lateral deviation
-protrusion

41

lateral pterygoid actions

superior head:
-contralateral lateral deviation
-protrusion
inferior head:
-depression
-contralateral lateral deviation

42

temporalis

-elevation
-ipsilateral lateral deviation
-retrusion

43

where do you have pain with TMD?

-headaches
-cervical
-jaw pain

44

where is most stability in the ankle?

supination

45

what ligament becomes taut when talus is moving anterior on the tibia?

anterior talofibular ligament

46

arthrokinematics of the TMJ:

convex moving on a concave surface