Normal Gait Pattern and Gait Analysis

Study Notes

Normal Gait Pattern

Definition: Normal gait pattern is a harmonious and coordinated sequence of movements that allows an individual to walk efficiently and effectively.
Characteristics:
- Heel strike at initial contact
- Rolling movement of the foot from heel to toe
- Knee flexion and hip extension during weight-bearing phase
- Pelvic rotation and hip abduction during swing phase
- Arm swing in opposition to leg movement

Gait Analysis Techniques

Observational Gait Analysis (OGA): visual observation of gait pattern by a trained therapist
Instrumented Gait Analysis (IGA): uses equipment such as force plates, motion capture systems, and electromyography to quantify gait parameters
2D/3D Motion Analysis: uses cameras and software to track movements of reflective markers attached to the body
Electromyography (EMG): measures muscle activity during gait
Force Plates: measures ground reaction forces and center of pressure

Exercise Therapy For Gait Rehabilitation

Goals:
- Improve gait efficiency and symmetry
- Enhance functional ability and mobility
- Reduce pain and inflammation
Techniques:
- Strengthening exercises for hip, knee, and ankle muscles
- Balance and proprioception exercises
- Gait training with verbal cues and tactile feedback
- Treadmill walking with varying speeds and inclines

Gait Cycle Phases

Stance Phase (60% of gait cycle):
- Heel strike to toe-off
- Weight-bearing phase
Swing Phase (40% of gait cycle):
- Toe-off to heel strike
- Non-weight-bearing phase
Sub-phases:
- Initial contact and loading response
- Mid-stance
- Terminal stance
- Pre-swing and swing

Abnormal Gait Patterns

Antalgic Gait: characterized by a short, painful stride on the affected side
Trendelenburg Gait: hip drops on the swing side due to weak gluteus medius
Circumduction Gait: circular motion of the leg to compensate for weakness or stiffness
High-Stepping Gait: exaggerated knee lift to compensate for foot drop
Propulsive Gait: push-off phase is lacking, resulting in a slow and labored gait

Normal Gait Pattern

Normal gait pattern is a harmonious and coordinated sequence of movements that allows an individual to walk efficiently and effectively.
Characterized by heel strike at initial contact, rolling movement of the foot from heel to toe, knee flexion and hip extension during weight-bearing phase, pelvic rotation and hip abduction during swing phase, and arm swing in opposition to leg movement.

Gait Analysis Techniques

Observational Gait Analysis (OGA) involves visual observation of gait pattern by a trained therapist.
Instrumented Gait Analysis (IGA) uses equipment such as force plates, motion capture systems, and electromyography to quantify gait parameters.
2D/3D Motion Analysis uses cameras and software to track movements of reflective markers attached to the body.
Electromyography (EMG) measures muscle activity during gait.
Force Plates measure ground reaction forces and center of pressure.

Exercise Therapy For Gait Rehabilitation

Goals of exercise therapy include improving gait efficiency and symmetry, enhancing functional ability and mobility, and reducing pain and inflammation.
Techniques used in exercise therapy include strengthening exercises for hip, knee, and ankle muscles, balance and proprioception exercises, gait training with verbal cues and tactile feedback, and treadmill walking with varying speeds and inclines.

Gait Cycle Phases

Stance Phase (60% of gait cycle) includes heel strike to toe-off and weight-bearing phase.
Swing Phase (40% of gait cycle) includes toe-off to heel strike and non-weight-bearing phase.
Sub-phases of the gait cycle include initial contact and loading response, mid-stance, terminal stance, and pre-swing and swing.

Abnormal Gait Patterns

Antalgic Gait is characterized by a short, painful stride on the affected side.
Trendelenburg Gait is characterized by hip drops on the swing side due to weak gluteus medius.
Circumduction Gait involves a circular motion of the leg to compensate for weakness or stiffness.
High-Stepping Gait involves exaggerated knee lift to compensate for foot drop.
Propulsive Gait is characterized by a lacking push-off phase, resulting in a slow and labored gait.

Description

This quiz covers the definition and characteristics of a normal gait pattern, including heel strike, knee flexion, and pelvic rotation, as well as gait analysis techniques. Test your knowledge of human movement and locomotion!