¸ñÂ÷/Â÷·Ê
Gait
¡á Gait cycle
cycle division
1. gait cycle; 2 periods, stance & swing
stance - entire period during which the foot is on the ground,
initial contactÀ¸·Î ½ÃÀÛ
swing - time that the foot is in the air for limb advancement,
toe-offºÎÅÍ ½ÃÀÛ
2. stance; 3 intervals according to the sequence of floor contact by the two feet
¨ç initial double stance
¨è single limb support - single stanceÀÇ durationÀÌ limb`s support capabilityÀÇ best index
¨é terminal double stanc...
º»¹®/³»¿ë
Gait
¡á Gait cycle
cycle division
1. gait cycle; 2 periods, stance & swing
stance - entire period during which the foot is on the ground,
initial contactÀ¸·Î ½ÃÀÛ
swing - time that the foot is in the air for limb advancement,
toe-offºÎÅÍ ½ÃÀÛ
2. stance; 3 intervals according to the sequence of floor contact by the two feet
¨ç initial double stance
¨è single limb support - single stanceÀÇ durationÀÌ limb`s support capabilityÀÇ best index
¨é terminal double stance
3. timing
stance 60% - 10%, 40%, 10%
swing 40%
- both feet°¡ limbsÀÇ support rolesÀ» ¹Ù²Ù´Â µ¿¾È ground¿Í contactÇÏ´Â intervalÀ» °¡Áö´Â °ÍÀÌ walkingÀÇ basic Ư¼ºÀÌ´Ù.
- double stance°¡ ºüÁö¸é ¡æ running mode of locomotionÀ¸·Î µé¾î°¨
stride & step
stride; interval between two sequential initial floor contacts by the same limb
step; interval between an initial contact by each foot
¡á Phase of gait
division of gait cycle
Task A. weight acc¡¦(»ý·«)
Ä¡
; responsible only for its own
postural integrity
; 70% of body weight
; center of gravity (C/G)
- locomotor unit; 2 lower limbs & pelvis
; 11°³ÀÇ joints°¡ Æ÷ÇÔ
(LS and both hips, knees, ankles, subtalars and metatarsophalangeal)
-pelvis´Â passenger unit¿Í locomotion
systemÀÇ dual part·Î ÀÛ¿ë
; 2 lower limbsÀ» ¿¬°á½ÃŰ´Âmobile
link¿Í hip joints¿¡ rideÇÑ passenger
unitÀÇ bottom segment ¿ªÇÒ
2. locomotor functions; 4°¡Áö
1) a propulsive force is generated (propulsion)
2) upright stability is maintained, despite an ever-changing posture (stance stability)
3) the shock of floor impact at the onset of each stride is minimized (shock absorption)
4) energy is conserved by these functions being performed in a manner that reduces the amount of muscular effort required (energy conservation)
1) standing stability
- body weight vector
; body weightÀÇ instantaneous alignment (vertical line)´Â foot plate (floor weight)¿¡ ÀÇÇØ °¨ÁöµÇ´Â ground reaction forces (GRF