Trunk and Pelvis Muscle Review Flashcards Preview

PTRS 845 Midterm > Trunk and Pelvis Muscle Review > Flashcards

Flashcards in Trunk and Pelvis Muscle Review Deck (47):
1

Muscle: Main function is back extension

Erector Spinae

2

Muscle: Provides power when lifting and compresses the spine

Erector Spinae

3

Muscle: Deep fibers prevent anterior translation during flexion

Erector Spinae

4

Muscle: Can cause an anterior tilt of the pelvis due to its connection to the thoracolumbar fascia 

Erector Spinae

5

Muscle: Main function is proprioception and feedback 

Interspinalis

Intertransversaris

6

Muscle: Deep segmental muscles

Interspinalis

Intertransversaris

7

Muscle: Small and close to the axis of motion making them unable to produce power

Interspinalis

Intertransversaris

8

Muscle: "Fine tune" segmental motion 

Interspinalis

Intertransversaris

9

Muscle: Primary function is side flexion

Quadratus Lumborum

10

Muscle: Function to stabilize sustained posture and heavy lifitng and is important in lumbopelvic motion

Quadratus Lumborum

11

Muscle: Provides a stable base for the diaphragm

Quadratus Lumborum

12

Muscle: Controls flexion and anterior shear forces

Multifidus

13

Muscle: Important for segmental stability by preventing anterior shearing

Multifidus

14

Muscle: Christmas tree shaped and largest (in diameter) in the lumbosacral area

Multifidus

15

Muscle: Primary hip/trunk flexor

Iliopsoas

16

Muscle: Deepest abdominal muscle that acts like a corset

Transverse Abdominis

17

Muscle: Important for stability and acts in a anticipatory manner (stabilizing prior to limb and trunk movement)

Transverse Abdominis

18

Muscle: Prevents anterior shearing due to its attachment to the thoracolumbar fascia

Transverse Abdominis

19

Muscle: Movement of proximal attachment results in trunk rotation

Internal and External Obliques

20

Muscle: Movement of bilateral distal attachment results in pelvic tilt

Internal and External Obliques

21

Muscle: Movement of unilateral distal attachment results in rotaiton

Internal and External Obliques

22

Muscle: Movement of bilateral distal attachment results in ANTERIOR pelvic tilt

Internal Obliques

23

Muscle: Movement of bilateral distal attachment results in POSTERIOR pelvic tilt

External Obliques

24

Describe which oblique is typically dominant and it's implications

Interal Oblique

Why many people have a sligth anterior tilt to their pelvic posture

25

Muscle: Main function is the provide stability of the lumbopelvic region and to prevent anterior shearing

Thoracolumbar Facsia

26

Describe how the thoracolumbar fascia prevents anterior shearing

The TA attaches to the T/L fascia

The T/L fascia has layers of fibers in opposing directions

The load form TA is translation to the T/L fascia which due to its layers brings the spinous processes closer together preventing anterior shearing 

27

Muscle: Passively attached form spinous processes from T12 down

Thoracolumbar Fascia

28

Type of Muscle: provides mobility

Global Muscle

29

Type of Muscle: Provides stability

Local Muscle

30

Type of Muscle: Response to pain with overactivation

Global Muscle

31

Type of Muscle: Responses to pain with inhibition

Local Muscle

32

Type of Muscle: 

Rectus Abdominis

Internal/External Oblique

Erector Spinae

Lateral Quadratus Lumborum

Thoracic Iliocostalis

Global Muscle

33

Type of Muscle: 

Produce power

Transmit load

Provide overall trunk stability

Global Muscles

34

Type of Muscle: 

Multifidus

Diaphragm

Pelvic Floor

Transverse Abdominis

Medial quadratus lumborum

Lumbar Iliocostalis

Longissimus

Local Muscles

35

Type of Muscle: Provde segmental stability 

Local Muscles

36

Describe how TA can be either a global or local muscles

If defined by its

attachment = local

function = global 

37

Muscle: Important when returning from trunk flexion

Gluteus maximus

38

Muscle: Important for pelvic stabilization during weight bearing

Gluteus Medius

39

Muscle: Funtions in hip extension, ER, ABD, and trunk motion

Gluteus Maximus

40

Muscle: Functions in hip ABD, IR, ER, and trunk stabilization

Gluteus Medius

41

5 Trunk Stabilizers

1. Abdominals

2. Obliques

3. Paraspinals

4. TA

5. Multifidus

42

2 Pelvic Stabilizers

1. Gluteus Maximus

2. Gluteus Medius

43

Describe where trunk muscles are anchored

To the pelvis

44

Describe excessive spine motion as compensation for hip extension weakness 

The trunk compensates with excessive lordosis

45

Describe excessive spine motion as compensation for hip abductor weakness

The trunk compensates with a side lean

46

Describe excessive spine motion as compensation for trunk muscles weakness

The compensation is rotaiton at the pelvis

47

Describe the TherEx Tx paradigm for trunk and pelvic muscles

1. Flexibility - to prevent compensations

2. Activation - to stabilize prior to strenghtening

3. Strengthening

4. Movement re-education