EMG During Gait Cycle

Question 1

Initial contact through loading response

Answer 1

Hip isometric at contact to eccentric IP and concentric hamstrings
Knee concentric to eccentric quads
Ankle eccentric tib anterior

Question 2

Initial Contact GRF

Answer 2

Posterior at ankle
Anterior at knee
Anterior at hip

Question 3

Loading Response through midstance

Answer 3

Hip concentric to no activity of glutes
Knee concentric to no activity of quads
Ankle eccentric triceps surae

Question 4

Loading Response GRF

Answer 4

Posterior at ankle
Posterior at knee
Anterior at hip

Question 5

Middle of midstance through terminal stance

Answer 5

Hip no saggital plane muscle activity
Knee no muscle activity
Ankle eccentric to concentric plantar flexors

Question 6

Midstance GRF

Answer 6

Anterior to ankle
Anterior to knee
Posterior to hip

Question 7

Terminal stance to end of preswing

Answer 7

Hip concentric IP, RF, and Sartorius
Knee eccentric to no activity quads
Ankle concentric to no activity triceps surae

Question 8

Terminal stance GRF

Answer 8

Anterior to ankle
Anterior to knee
Posterior to hip

Question 9

Initial swing through midswing

Answer 9

Hip concentric IP, RF, and sartorius
Knee initially concentric HS, then eccentric HS
Ankle concentric tib anterior

Question 10

Midswing through terminal swing

Answer 10

Hip eccentric to isometric G max and HS
Knee Brief concentric quads and eccentric HS
Ankle Isometric tib anterior