Gait

• 1. initial contact
• 2. loading response
• 3. mid stance
• 4. terminal stance
• 5. pre-swing
• 6. initial swing
• 7. mid-swing
• 8. terminal swing

weight acceptance and double limb

weight acceptance and double limb

single limb support and single limb

single limb support and single limb

swing limb advancement and double limb

single limb advancement and single limb

swing limb advancement and single limb

swing limb advancement and single limb

5^o forward, AT, abductors (TFL, glut med) activated

20^o flexion (glut max, add mag) isometric

0⁰ slight flexion (up to 5^o) vasti eccentric HS concentric

0^o supination pre tibs (AT, EDL, EHL) eccentric

25^o extension

pre swing

heel first contact; @ hip, GRFV anterior (flex mvmt) @ knee GRFV anterior (extension mvmt)

5^o forward, AT, abductors (TFL, glut med) activated

20^o flexion with 10^o add glut max isometric (primarily) HS isometric then none, abductors (TFL, glut med) activated

15^o flexion quads (1^o vasti) eccentric, HS (slight activity in some subjects)

5^o plantarflexion, pronation, pre-tibs eccentric, plantarflexors concentric (end of LR)

0^o

pre swing

heel rocker, controlled knee flexion (quads), stable hip; @ hip GRFV anterior (flexion moment) and Adductor moment initiated @ knee GRFV posterior (flexion moment) @ ankle GRFV posterior (plantar flexion moment)

0^o neutral, AT, abductors (TFL, Glut Med) activated

0^o (neutral) glut max quiet by mid stance, glut med, TFL eccentric then isometric at very end of mid stance

0^o (up to 5^o flexion) early vasti quick concentric then none by mid stance mid/late none

5^o DF, pronation, plantarflexors eccentric

0^o

initial swing to mid swing

ankle rocker, controlled tibial, advancement progressive knee extension; @ hip GRFV anterior/posterior (flexion to extension moment) @ knee GRFV posterior/anterior (flexion to extension moment) @ankle GRFV anterior (dorsiflexion moment)

5^o backward, AT, abductors (early) isometric, then none as foot nears ground

20^o extension (apparent), glut min/med isometric, then none TFL variable (usually until midpoint of terminal stance) Add longus (activated in late terminal stance

0^o up to 5^o of flexion, no quad contraction, gastroc eccentric, with quick concentric

10^o dorsiflexion, pronation/supination, plantarflexors eccentric with quick concentric

20^o extension

terminal swing

forefoot rocker, heel rise, forward body fall, trailing limb; @ Hip GRFV posterior (extension moment) @ knee anterior/postereior (extension to flexion moment) @ ankle GRFV anterior (dorsiflexion moment)

5^o backward, PT

10^o extension RF, Add Longus, and gracilis fire concentric and then eccentric

40^o flexion RF eccenctic

15^o PF supination, none (pre-tibs very late) concentric

50^o extension

initial contact to loading response

forefoot rocker, passive knee flexion @ knee, GRFV posterior (flexion moment)

5^o backward, PT

15^o flexion, 5^o abduction, flexors concentric (illacus, gracillis, sartorius, add longus) adductors assist

60^o flexion, HS (short head), sartorius, gracilis concentric

5^o PF, neutral pre tibs concentric

0^o (relaxed)

mid stance

hip flexion to 15^o knee flexion to 60^o

0^o (neutral) PT

• 25^o flexion add longus, gracilis concentric
• late MSw HS eccentric

25^o flexion HS (decreasing) eccentric

0^o neutral pre tibs concentric

0^o (relaxed)

late mid stance

hip flexion to 25^o ankle to 0^o

5^o forward, AT abductors (TFL, glut med) activated

0^o flexion extensors (glut max- limited, HS) eccentric abductors activated

0^o (up to 5^o flexion) vasti concentric HS eccentric

0^o neutral to supination pre tibs concentric

0^o (relaxed)

terminal stance

knee extension to 0^o (up to 5^o) hip deceleration ankle DF for initial contact