The document discusses biomechanics of gait, outlining its definition as the coordinated movement of lower extremities that supports body progression. It details the gait cycle phases, including stance and swing phases, along with their relevant terminology related to both temporal and distance variables. The document serves as a comprehensive review of gait mechanics, referencing a key textbook for further information.

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BIOMECHANICS :
GAIT
- Dr. Quazi Huma
MPT Neurosciences
Asst. Professor

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OBJECTIVES
WHAT IS GAIT?
GAIT CYCLE
GAIT TERMINOLOGY
KINEMATICS:PHASES OF GAIT
KINETICS

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GAIT
 Alternating movements of the lower extremities essentially support and carry
along the head, arms, and trunk
 Translatory progression of the body as a whole, produced by coordinated,
rotatory movements of body segments.

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GAIT CYCLE
 A gait cycle spans two successive events of the same limb
Stance (60%) Swing (40%)
Gait Cycle

5. z KINEMATICS
Phases of Gait Cycle: Stance Phase
 EVENTS OF STANCE
PHASE
 Heel strike
 Foot flat
 Midstance
 Heel off
 Toe off
 SUB PHASES
 Heel strike phase
 Loading response
 Midstance

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Swing Phase:

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Gait Terminology: Temporal Variable
Stance time
Stride & Step time
Swing Time
Cadence &
Speed
Single & Double
limb support time

11. z Gait Terminology: Distance Variable
Step Length
Degree of toe-
out
Step Width
Stride Length

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KINETICS
 GROUND REACTION FORCES

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KINETICS
 COP (Centre of Pressure)

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Reference
 Pamela K. Levangie, Cynthia C. Norkin; Joint Structure and Function: A
Comprehensive Analysis 4th Edition.