Podcast
Questions and Answers
What is the main factor responsible for the rotation of the pelvis during walking?
What is the main factor responsible for the rotation of the pelvis during walking?
- Pelvic-on-femoral adduction and abduction on the swing limb
- Eccentric activation of the hip abductors on the stance limb (correct)
- Concentric activation of the hip abductors on the swing limb
- The movement of the trunk during gait cycle
What happens to the left iliac crest during weight acceptance on the right lower extremity?
What happens to the left iliac crest during weight acceptance on the right lower extremity?
- It rises above the height of the right iliac crest
- It drops below the height of the right iliac crest (correct)
- It remains at the same height as the right iliac crest
- It rotates about 10-15 degrees due to pelvic-on-femoral adduction and abduction on the swing limb
What is responsible for the elevation of the left iliac crest from 20% to 60% of the gait cycle?
What is responsible for the elevation of the left iliac crest from 20% to 60% of the gait cycle?
- Pelvic-on-femoral adduction and abduction on the stance limb
- Concentric activation of the hip abductors on the swing limb (correct)
- Eccentric activation of the hip abductors on the stance limb
- Trunk rotation toward the left side
How does the shift of the trunk toward the right side assist in the elevation of the left iliac crest?
How does the shift of the trunk toward the right side assist in the elevation of the left iliac crest?
What is responsible for the elevation of the left iliac crest on the swing limb?
What is responsible for the elevation of the left iliac crest on the swing limb?
What is the role of the right hip abductors in controlling the downward motion of the left side of the pelvis?
What is the role of the right hip abductors in controlling the downward motion of the left side of the pelvis?
What is the significance of observing pelvic motion during walking?
What is the significance of observing pelvic motion during walking?
What is the range of pelvic rotation during walking?
What is the range of pelvic rotation during walking?
What is responsible for the rotation of the pelvis during pelvic-on-femoral adduction and abduction?
What is responsible for the rotation of the pelvis during pelvic-on-femoral adduction and abduction?
Flashcards are hidden until you start studying
Study Notes
- Frontal plane motion of the pelvis during walking can be observed by watching the iliac crests rise and fall in relation to the horizontal plane.
- The pelvis rotates about 10-15 degrees due to pelvic-on-femoral adduction and abduction on the stance limb.
- During weight acceptance on the right lower extremity, the left iliac crest drops below the height of the right iliac crest due to pelvic-on-femoral adduction of the right stance hip.
- The downward motion of the left side of the pelvis is controlled by eccentric activation of the right hip abductors.
- From 20% to 60% of the gait cycle, the left iliac crest is elevated by concentric activation of the right hip abductors.
- This is assisted by a slight shift of the trunk toward the right side, reducing external torque demands on the right hip abductors.
- The elevation of the left iliac crest on the swing limb is the result of pelvic-on-femoral abduction of the right stance hip.
- Throughout the swing phase on the right, a similar pattern occurs with the right iliac crest.
- This pattern of pelvic motion is important for maintaining balance during walking.
- Observing pelvic motion can be useful in diagnosing gait abnormalities.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
