Methods of gait analysis
12 important questions on Methods of gait analysis
What are a few disadvantages of visual gait analysis?
Eye cannot observe high speeds
Observe movements not forces
How is stride length calculated from cycle time and cadence?
=(speed(m/s)x2x60)/Cadence(steps/min)
Which methods are used for automatic measurements of temporal and spatial parameters during gait?
Instrumented walkways
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What is the best way to get accurate data?
What are the seven limitations to visual gait analysis?
- It is transitory, giving no permanent record
- The eye cannot observe high-speed events
- It is only possible to observe movements, not forces
- It depends entirely on the skill of the individual observer
- It is subjective and it can be difficult to avoid assessor bias if the patient is undergoing treatment
- Subjects may act differently when they know they are being watched
- A clinic or laboratory environment may be very different from the real world
What limitations does examining video recordings overcome?
- Lack of permanent record
- The difficulty of observing high-speed events
What are the four advantages to examination by video recording?
- It reduces the number of walks a subject needs to do
- It makes it possible to show the subject exactly how they are walking
- It makes it easier to teach visual gait analysis to someone else
- It completes the picture in a gait report as seeing the patient is very meaningful while reading the values of their analysis.
How is PCI calculated?
What is the physiological cost index (PCI) used for?
Why is estimating energy expenditure using mechanical calculations generally unsatisfactory for complex activities like walking?
What is the "estimated external work of walking" (EEWW) used for?
What is the purpose of measuring oxygen consumption and carbon dioxide production?
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