Joint Angles During Gait

Question 1

Angle of hip, knee, and ankle - IC

Answer 1

Hip flexed 35, knee/ankle neutral

Hip - 35˚ F
Knee - 0˚
Ankle - 0˚

Question 2

Angle of hip, knee, and ankle - LR

Answer 2

Hip extends, knee flexes, ankle PF

Hip - 35 to 25˚ F
Knee - 0 to 15˚ F
Ankle - 0-5˚ PF

Question 3

Angle of hip, knee, and ankle - MS

Answer 3

Hip extends, knee extends, ankle DF

Hip - 25˚ F to 5˚ E
Knee - 15˚ to 5˚ F
Ankle - 5˚ PF to 10˚ DF

Question 4

Angle of hip, knee, and ankle - TS

Answer 4

Hip extends, knee flexes, ankle reduces DF

Hip - 5˚ to 10˚ E
Knee - 5˚ to 10˚ F
Ankle - 10˚ to 8˚ DF

Question 5

Angle of hip, knee, and ankle - PreSw

Answer 5

Hip extends to 0, knee flexes, ankle PF

Hip - 10˚ to 0˚ E
Knee - 10˚ to 40˚ F
Ankle - 8˚ DF to 7˚ PF

Question 6

Angle of hip, knee, and ankle - ISw

Answer 6

Hip flexes, knee flexes to 65, ankle PF and rebounds

Hip - 0˚ to 30˚ F
Knee - 40˚ to 65˚ F
Ankle - 7˚ to 15˚ to 7˚ PF

Question 7

Angle of hip, knee, and ankle - MSw

Answer 7

Hip flexes to 45, knee extends, ankle DF

Hip - 30˚ to 45˚ F
Knee - 65˚ to 35˚ F
Ankle - 7˚ PF to 5˚ DF

Question 8

Angle of hip, knee, and ankle - TSw

Answer 8

Hip extends to 35, knee and ankle return to neutral

Hip - 45˚ to 35˚ F
Knee - 35˚ to 0˚ F
Ankle - 5˚ to 0˚ DF

Question 9

When does max hip flexion occur

Answer 9

45˚ in midswing

Question 10

When does max hip extension occur

Answer 10

10° in TS

Question 11

When does max knee flexion occur

Answer 11

65˚ in midswing

Question 12

When does max ankle PF occur

Answer 12

15˚ in initial swing

Question 13

When does max ankle DF occur

Answer 13

10˚ at end of MS

Question 14

Describe hip rotation

Answer 14

Hip ER from MS to toe off
Hip IR from toe off to MS

Rotation ~23˚

Question 15

COM located where in relation to spine and height

Answer 15

Just anterior to S2 vertebrae

~56% of body height