Hip, Pelvis, and Lumbar Gait

Question 1

Initial Contact/Heel Strike

Answer 1

Erect Trunk rotated opposite to pelvis

Right Hemipelvis forward rotation 4 degrees and Right hemi-pelvis posterior rotation

30 degrees hip flexion, slight ER

Question 2

Loading Response/Foot Flat

Answer 2

Erect Trunk rotated opposite to pelvis

Right Hemipelvis forward rotation 4 degrees and Right hemipelvis posteriorly rotated

25 degrees hip flexion

Question 3

Midstance

Answer 3

Erect trunk begins opposite side (Left) rotation

Neutral pelvis due to forward rotation of left hemipelvis
Slight depression of left hemipelvis

Neutral sagittal plane hip

Question 4

Terminal Stance/Heel off

Answer 4

Erect Trunk opposite side rotation (left)

4 degree forward rotation of contra pelvis and anterior rotation ipsi

10-20 degrees hip extension
Slight ER femur secondary to tibial ER

Question 5

Preswing/Toe off

Answer 5

Erect Trunk rotation opposite side

Forwardly rotated Left hemipelvis and anteriorly rotated right hemipelvis

Neutral hip

Question 6

Initial Swing/Acceleration through midswing

Answer 6

Left rotation of trunk

Neutral transverse plane pelvis
Right pelvic depression (1/4 inch)

30 flexion hip and ER

Question 7

Midswing through terminal Swing

Answer 7

Right Trunk rotation

Forward rotated pelvis 4 degrees

Hip flexed 30 degrees
Externally rotated hip

Question 8

Midswing through terminal Swing

Answer 8

Right Trunk rotation

Forward rotated pelvis 4 degrees

Hip flexed 30 degrees
Externally rotated hip

Question 9

EMG Initial Contact through loading response

Answer 9

Isometric at contact to eccentric IP and Concentric G Max, HS, TFL, G Med, Adductor magnus, Gracilis

GRF Anterior to axis of rotation

Question 10

EMG Loading Response through Midstance

Answer 10

Concentric to no activity G max and HS, Isometric/Eccentric of TFL and G Med

GRF anterior to axis of rotation then posterior at Midstance

Question 11

EMG Midstance through terminal stance

Answer 11

No saggital plane activity, TFL & G Med isometric

GRF Posterior to axis of rotation

Question 12

EMG Terminal stance to end of preswing

Answer 12

Concentric IP, RF, and Sartorius

GRF Posterior to axis of rotation

Question 13

EMG initial swing through midswing

Answer 13

Concentric IP, RF, and Sartorius

Gravity anterior to axis of rotation

Question 14

EMG midswing through terminal swing

Answer 14

Eccentric to isometric G max and HS

Gravity anterior to axis of rotation