Lecture notes
Lecture notes Advanced Biomechanical Analysis
- Institution
- University Of Lincoln (UoL)
Providing information on smoothing data, the different types and setbacks with each method and positives.
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Biomechanics – Smoothing – 30/01/23 Signal Content –
o True Value – The real value at each time
o Error (“Noise”)
True Signal
Error
Recorded
Signal
IKD errors –
o Misalignment of the axis
o Other muscles being involved
o Is it 100% effort
o Allow speed to be within 10%
Systematic Error –
o Electronic Drift
o Calibration Errors
o Consistent Mistakes
Random –
o Equally likely in any direction
Propagation of Errors –
o Errors can increase each time they are used in calculations
Validity –
o How well you are measuring what you are supposed to be measuring
o Is the average where it should be
Reliability –
o The consistency of measurements under different “conditions”
Repeatability –
o Test-retest reliability
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