BIOMEKANIK DAN KINESIOLOGI BIOMEKANIK DAN KINESIOLOGI ANALISA JALAN. ANALISA JALAN. Andry ariyanto. SSTFT. Program Studi D III Fisioterapi.Andry ariyanto. SSTFT. Program Studi D III Fisioterapi.

ANALISA JALAN ANALISA JALAN

1 siklus jalan adalah saat mulai dan akhir ketika tumit kanan kontak dengan tanah (heal strike atau ground contact)

1 siklus jalan adalan interval waktu atau urutan gerak yang terjadi antara dua berurutan kontak awal (initial contacts) untuk kaki yang sama

Fase berjalan :Fase berjalan :

Closed Kinetic Chain: Stance phase (fase menumpu)

Open Kinetic Chain: Swing phase (fase melayang)

Gait Phase (Fase Jalan) Gait Phase (Fase Jalan)

Fase-fase jalan stance phaseFase-fase jalan stance phase

Stance Phase :1. Intial contact (heel strike)2. Load response (foot flat)3. Mid stance (single leg stance)4. Terminal Stance (heel off)5. Pre Swing (toe off)

Fase fase jalan Swing phase:Fase fase jalan Swing phase:

Swing Phase (fase mengayun)1. Initial swing (acceleration)2. Mid swing 3. Terminal swing (Deceleration)

Gait Characteristics - WalkingGait Characteristics - Walking

stride length step length

left foot

swing phase,left foot

right foot

stance phase,left foot

single-support

left toe-off

one gait cycle

time

double-supportleft foot-strike

right foot-strikeright toe-off

a

b

walking

Parameter Jalan yang NormalParameter Jalan yang Normal

Base width (jarak kaki) = 5 – 10 cmGait (step) Length/ Panjang langkah = 35 – 41 cmStride length (panjang melangkah/2 langkah) = 70 –

82 cmLateral pelvic shift (pelvic list) = normalnya 2.5 – 5

cm.Vertical pelvic shift (pelvic tilt) = 5 cm Pelvic Rotation Center of Gravity = pada saat berdiri letaknya 5 cm di

anterior vertebra sacral ke 2Normal Cadence (irama normal) = antara 90 -120

langkah per menit.

HSTO

MSHS

TOHS

Single SupportDouble

SupportDouble

Support Single Support

STANCE (Right Foot) SWING (Right Foot)

Left Foot

Right FootTO HSHS

0 50 100[% of Gait Cycle]

The Gait Cycle

The Stance Phase of the Gait Cycle

Toe-OffHeel Strike Midstance Push-Off

0% 15% 45% 60%%GC

Position

Video-camera based motion measurement systems monitor the displacement of external markers that are placed on the subject’s body and aligned with specific bony segments (top). The video sequence is then processed using a computer system and displayed as a “stick diagram” (bottom) for calculation of kinematic parameters, e.g., the ankle flexion during gait (reproduced from Vaughan et al., 1992).

Analysis of Gait Kinematics

Stance PhaseStance Phase

Swing Phase Swing Phase

Single Gait Cycle Single Gait Cycle

Support During Cycle Support During Cycle

Ground Reaction Force Ground Reaction Force

Sekian terima kasih Sekian terima kasih