Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

Biomechanics > Exam 3: Gait Quiz > Flashcards

Exam 3: Gait Quiz Flashcards

1
Q

Gait

A

Manner or style of walking

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Gait analysis

A

Evaluation of manner or style of walking

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Kinetic chain

A

Combo of successively arranged joints constituting complex motor unit

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Open chain movement

A

Kinetic chain where terminal segment can move freely

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Closed chain movement

A

Kinetic chain where distal end of extremity is fixed

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Ground reactive forces

A

Force exerted by ground on body in contact with it

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Examples of open chain movements

A

Biceps curl
Bench press
Leg extension
Free movement

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Closed chain movements

A

Push-ups
Pull-ups
Squats, lunges
Compressive forces

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Heel strike

A

Moment when heel strikes ground

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Toe off

A

Moment when toe leave ground

Not longer in BOS

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Step

A

Movement of 1 LE from toe off to heel contact

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Stride

A

2 steps, 1 with each leg

AKA gait cycle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Step length is measured by the distance between

A

Toe of trailing limb to heel of leading limb

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Stride length is the distance between

A

2 successive placements of same foot

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Stride length consists of

A

2 step lengths (L and R)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Double support if the portion of one gait cycle where

A

Both feet are in contact w/ the ground

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Flight/float is a period of

A

“Non-support”

Neigher foot is in contact w/ the ground

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

One complete gait cycle

A

Moment first foot contact ground until same foot again makes ground contact

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Bipedal gait cycle consists of 2 phases

A

Stance

Swing

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Stance

A

LE contacting ground

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Swing

A

LE swinging through air preparing for next impact

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

While walking, typical gait cycle lasts

A

About 1 sec

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Stance phase makes up __% of gait cycle

A

60%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Swing phase makes up __% of gait cycle

A

40%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Stance phase: distal end of kinetic chain is
Fixed by ground reactive forces Closed chain motion
26
Stance phase has 3 sub-phases
Contact Midstance Propulsive
27
Swing phase: distal end of kinetic chain is
Freely mobile Open chain motion
28
Stance phase: contact subphase begins at ____ and ends at ____
Heel strike; entire forefoot makes ground contact First 1/3 of stance phase
29
Loading response in stance phase
Sole of foot comes into contact w/ ground Weight of body accepted onto supporting limb
30
Loading response subphase = ____ of gait cycle
First 10%
31
Stance phase: midstance
Period when Center of gravity if vaulting over foot
32
Midstance ends at point of
Heel off
33
Midstance makes of ___ of stance phase
Second 1/3
34
Stance phase: propulsive subphase begins when ____ and ends when ____
Heel leaves ground (heel lift); tips of toes no longer make ground contact
35
Propulsive subphase makes up _____ of stance phase
Final 1/3
36
Stance phase when running
Changes timing of the events
37
Stance subphases when running
``` Contact = first 20% Midstance = next 25% Propulsive = final 55% ```
38
3 parts of swing phase
Acceleration Midswing Deceleration
39
Acceleration begins w/ ___ and ends w/ ____
Toe off; swinging foot reaching stance foot
40
Midswing occurs when
Swinging leg overtakes stance leg
41
Midswing begins as ______ and ends when ____
Swinging leg opposite stance leg; swinging leg is forward, tibia is vertical
42
Deceleration begins with ____ and ends with ____
Vertical tibia of swing leg; heel strike
43
5 priorities of normal gait
1. Stability of WB foot 2. Clearance of NWB foot 3. Pre-position during terminal swing 4. Adequate step length 5. Energy conservation
44
Swing of arms is _____ with the legs
Out of phase (opposite)
45
As the arm moves forward, shoulders
Rotate w/ arms
46
Shoulders and pelvis rotate ____
Out of phase with each other
47
Thoracic spine moves in ____ directions as shoulders and ____ of pelvis to enhance stability and balance
Same (shoulders); opposite (pelvis)
48
Lumbar spine tends to rotate w/
Pelvis
49
The point of rotational transition btw L and T is typically btw
T6 and T7
50
SI joint during right leg swing phase, right innominate rotates
Form anterior to posterior at point of initial contact
51
Right leg loading response to mid stance, right innominate moves from
Posterior rotation to neutral
52
Right leg midstance to terminal stance, right innominate rotates
Anteriorly
53
For normal gait to occur, pelvis must both rotate
ThetaX and tilt thetaZ
54
Trendelenburg Sign
Pelvis drops on side of lifted foot
55
Trendelenburg sign indicates
Weak glute med on side of stance leg
56
Subtalar joint functions as mitered hinge during gait to transmit
Internal/external rotation of tibia to rotation of the foot
57
Foot supination involves
Plantarflexion Adduction Inversion
58
Foot pronation
Dorsiflexion Abduction Eversion
59
At heel strike, ankle is ____
Dorsiflexed
60
During loading response ____ at talocrural joint, ____ at subtalar joint
Plantar flexion; pronation
61
End of midstance interval talocrural joint is ____ and subtalar joint ______
Max dorsiflexed; begins to supinate
62
Once ankle is fully close-packed, heel is lifted by combo of
Passive force and contraction of triceps surae
63
At heel strike, subtalar joint is
Pronated
64
Lateral foot striking the ground
5th though 1st metatarsal head loading
65
____ maintains medial arch
Plantar fascia
66
Propulsive phase of foot begins with ___ and ends with
Heel lift; toe-off
67
____ is necessary for foot propulsion
Rigidity
68
2 events crucial in creating rigid lever
Close pack position | Plantar fascia pulled tight
69
What helps create the close pack position
Supination of subtalar joint when heel lifts, cuboid and calcaneous lock
70
Windlass effect
Toes dorsiflex pulling on plantar fascia resulting in approximation of rearfoot and forefoot
71
2 most important factors in absorbing shock of impact are
Pronation of subtalar joint | Eccentric muscle actions
72
Titialis anterior concentric action
Dorsiflex and invert foot
73
Tibialis anterior eccentrically slows
Plantar flexion after heel strike Pronation after heel strike
74
Tibialis posterior concentric action
Plantarflex and invert foot
75
Tibialis posterior eccentrically slows
Dorsiflexion and pronation during midstance

Biomechanics (15 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions