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November 2024 Biomechanics > Week 4 > Flashcards

Week 4 Flashcards

Genetic Biases and Asymmetries

1
Q

What is “Stance” referring to in the context of lateralization?

A

Stance is referring to mid-stance phase of gait

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2
Q

What does lateralization mean?

A

Shifting center of
gravity over a given side of the body.
This can occur with or without
compensation

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3
Q

What does ‘Occupancy’ mean in reference to this course?

A

The ability to properly
achieve stance on a given side and
effectively shift out of that side.

*Think “can you occupy the entirety of movement possible on this side”

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4
Q

What happens visually when we shift into “stance”?

A

-Cervical sidebend to opposite side of stance leg
-Lower shoulder on same side of stance leg
-Spine facing same side of stance leg
-Pelvis facing same side of stance leg
-Weight on outside foot of stance leg

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5
Q

Which side of the body is slightly heavier due to organ weight?

*Bonus: Which organs are responsible for this?

A

Right side

*Bonus:
- Liver
-Colon
-Gallbladder
-More lung weight on right side

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6
Q

Can you speak to some of the qualities of the Right Dome of the Diaphragm compared to the Left ?

A

-Right Dome is larger than the Left
-It is proped up by the liver, which makes it positionally able to work better in respiration
-Has more leverage on the anterior spine, due to the thickness and position of the ‘Right Crus’

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7
Q

Can you speak to to qualities of the Left Dome of the Diaphragm compared to the Right Dome

A

The Left side is smaller and has relatively more ability to descend compared to the right side.
-Less leverage from organs and generally open left chest wall

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8
Q

Air from Right Diaphragm goes into which lung? Right or Left?

A

Left

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9
Q

The Left Diaphragm often acts more as what: a postural stabilizer or a respiratory muscle?

A

Postural Stabilizer

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10
Q

Describe the visual overview of ‘Right Lateralization’.

A

-Higher right hip
-Lower right shoulder
-Head sidebent left
-Sternum & sacrum facing right
-Weight on outside of right foot

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11
Q

What is the main difference between Right Lateralization and Mid Stance?

A

The Right Hip will be higher in Right Lateralization. Everything else is the same as Mid stance

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12
Q

Describe Right Lateralized Pelvis moving through Orientation.

A

Left side: Anteriorly oriented
Right side: Posteriorly oriented

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13
Q

Describe a Right Lateralized Pelvis moving through Relative Motion.

(Sacrum & Innominate Bones)

A

Left Side: Counternutation & External Rotation

Right Side: Nutation & Internal Rotation

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14
Q

Describe Left and Right Hip Joint in Right Lateralization

A

Right IR
Left ER

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15
Q

Describe Left and Right Femur in Right Lateralization

A

Right ER
Left IR

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16
Q

Describe the Left & Right Tibia and Foot in Right Lateralization

A

Left Tibia = IR’d
Left Foot = Pronated
Right Tibia=ER’d
Right Foot = Supinated

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17
Q

What Muscles on the Right side of the lower body are more Concentrically oriented in Right Lateralization

A

-Adductors
-Anterior gluteus medius (internal rotator)
-Obliques
-Medial hamstrings

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18
Q

What Muscles of the Left Side of the lower body are more concentrically oriented in Right Lateralization

A

-Glute Max
-Posterior Glute Med (ER/ABDuctors)
-Hip Flexors (Psoas)

19
Q

What ever the left side has….. (Finish the sentance)

A

The right side usually needs and vice-versa

20
Q

In Right Lateralization, what side is easier to “load” and why?

A

The Right Side is better at accepting weight and loading becuase it is easier for us to get “in” to our right hip

21
Q

In Right Lateralization, what side is biased toward propulsion and why?

A

The Left Pelvis is better at propulsion because we can push out of the left hip easier

22
Q

The Right side of the body needs more what? In terms of Gait and foot reference

A

Late Stance + Medial Arch Reference

23
Q

The Left Side needs more what? In terms of Gait and Foot Reference

A

Early & Mid Stance + Heel Reference

24
Q

What muscles will be biased with Late Stance bias + Medial Arch Reference

A

-Glute max
-Posterior gluteus medius
-Quads
-Hip flexors

25
Q

What muscles will be biased with Early/Mid-stance & Heel Reference

A

-Adductors
-Anterior gluteus medius
-Obliques
-Hamstrings

26
Q

In Right Lateralization, the Left side is naturally biased towards what phase in the gate in the lower and upper body?

A

Left Lower - Foot Flat
Left Upper - Late Stance

27
Q

In Right Lateralization, the Right side is naturally biased towards what phase in the gate?

A

Right Side biased toward more Mid-Stance Mechanics

28
Q

In someone with Right Lateralization, what are some expected positions and testing outcomes in the lower body on the RIGHT side

A

Positions on R side:
-Increased Pelvic & Femoral IR
-Increased Lower Limb ER

Testing out comes on R side:
- Less Hip Flexion
-Less Femoral ER

29
Q

In someone with Right Lateralization, what are some expected positions and testing outcomes in the lower body on the LEFT side

A

Positions on R side:
-Increased Pelvic & Femoral ER
-Increased Lower Limb IR

Testing out comes on R side:
- Worse Straight Leg Raise (IR)
-Less Femoral IR

30
Q

Which direction is the Spine Facing in Right Lateralization?

A

The Spine is overall facing Right, but is beginning to counterrotate left progressively up the spine.

The Thoracic spine would be facing left more so than the lumbar spine, but is still ultimately facing right

31
Q

What direction is the sternum facing in Right Lateralization

A

Facing the Right side

32
Q

In terms of IR/ER, what are the left and Right ribs doing in Right Lateralization

A

Right Ribs = IR
Left Ribs ER

33
Q

In terms of expansion and compression, describe the Left and Right sides of the ribcage in Right Lateralization.

Both Anterior and Posterior

A

Right Anterior - Compressed
Right Posterior- Expanded
Left Anterior - Expanded
Left Posterior - Compressed

34
Q

Compression mostly occurs in the upper or lower chambers of the ribcage?

A

Compression mostly occurs in the upper chambers of the ribcage

35
Q

Describe the position of the Right Scapula in R lateralization

A

Position:
-IR
-ABD
-Upward Ro.
-Anterior Tip.

36
Q

Describe what the Right Scap needs in Right Lateralization

A

-Low trap (scapular ER, posterior tipping)
-Triceps (downward rotation)
-SerratusAnterior (scapular ER)

37
Q

Describe the position of the Left Scapula in R lateralization

A

-Adduction
-External Rotation
-Downward Rotation
-Posteriorly Tipped

38
Q

Describe what the Left Scap needs in Right Lateralization

A

-Posterior expansion
-Obliques & Transverse abs
-Serratus anterior (protraction)

39
Q

(T/F) The upper body mirrors the lower body?

A

True

40
Q

90/90 Hip Lift w/ HemiBridge biases what?

A

-Left Hip IR
-Left Hamstring
-Right Hip ER
-Right Quad

41
Q

Sidelying Grounding Progression biases what?

A

-Right Anterior Expansion
-Left Posterior Expansion
-Left Hip IR

42
Q

Sidelying Grounding is a great exercise for who?

A

Beginners! But also great for everyone.

More specifically, it’s a great introductory exercise

43
Q

Sidelying Adductor Pullback biases what?

A

Left adductor
Left Hamstring
Left oblique
Right Anterior Expansion

November 2024 Biomechanics (5 decks)

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