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Questions and Answers
What is the linear distance from one heel to the successive left heel known as?
What is the linear distance from one heel to the successive left heel known as?
- Stride length
- Foot angle
- Stride width
- Step length (correct)
What angle is measured between the line of progression and a line passing from the center of the heel to the 2nd toe?
What angle is measured between the line of progression and a line passing from the center of the heel to the 2nd toe?
- Foot angle (correct)
- Stride width
- Step length
- Stride length
What is the horizontal distance between the midpoint of one heel to another heel known as?
What is the horizontal distance between the midpoint of one heel to another heel known as?
- Step length
- Stride length
- Stride width (correct)
- Foot angle
What parameter signifies the number of steps per minute?
What parameter signifies the number of steps per minute?
What does increasing speed mainly affect among the following?
What does increasing speed mainly affect among the following?
In gait analysis, what term refers to the period when only one limb supports body weight?
In gait analysis, what term refers to the period when only one limb supports body weight?
Which variable represents the horizontal distance between midpoints of both heels?
Which variable represents the horizontal distance between midpoints of both heels?
What does 'GC' stand for in gait analysis when referring to time parameters?
What does 'GC' stand for in gait analysis when referring to time parameters?
What is the linear distance from one heel to the successive right heel called?
What is the linear distance from one heel to the successive right heel called?
Which angle is measured between the line of progression and a line passing from the center of the heel to the 2nd toe?
Which angle is measured between the line of progression and a line passing from the center of the heel to the 2nd toe?
What is the horizontal distance between the midpoint of one heel to another heel known as?
What is the horizontal distance between the midpoint of one heel to another heel known as?
In gait analysis, what does increasing speed mainly affect among the following?
In gait analysis, what does increasing speed mainly affect among the following?
Which parameter signifies the number of steps per minute in gait analysis?
Which parameter signifies the number of steps per minute in gait analysis?
What term refers to the period when only one limb supports body weight in gait analysis?
What term refers to the period when only one limb supports body weight in gait analysis?
What is calculated as Distance covered divided by time in gait analysis?
What is calculated as Distance covered divided by time in gait analysis?
'Swing time' is what percentage of the Gait Cycle (GC) time?
'Swing time' is what percentage of the Gait Cycle (GC) time?
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Study Notes
Gait Analysis
- Gait analysis involves kinematics, kinetics, distance and time variables, external forces, measurement of joint angles, internal forces, and determinants of gait.
Distance Variables
- Step length: linear distance from right heel to successive left heel, approximately 70.5 cm
- Stride length: linear distance from right heel to successive right heel, approximately 141 cm
- Stride width: horizontal distance between midpoint of one heel to another heel, approximately 8 cm (range: 2.5-12.5 cm)
- Foot angle (degree of toe out): angle between line of progression and line passing from center of heel to 2nd toe, approximately 7-10°
Time Variables
- Cadence: number of steps per minute, approximately 113 steps/min
- Speed: distance covered per unit time, approximately 1.2 m/sec (or 82 m/min)
- Step, stride, stance, swing, single limb, and double limb are all related to time variables
Calculations
- Cadence = Number of steps / minute
- Speed = Distance covered / time
- Stride time = GC time = 0.8 sec
- Swing time = 0.8 - 0.3 = 0.5 sec
- Float period = 0.5 * 20/100 = 0.1 sec
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