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Sooner or later, another Casey Martin will surface, another golfer with an equally valid disability who wants to try to qualify for the Tour.
The Health Assessment Questionnaire Disability Index (HAQ) and the SF-36 PF-10, among other instruments, yield sensitive and valid Disability (Physical Function) endpoints.
An additional strength of this continuous model is the ability to include all valid disability (EDSS) assessments, regardless of their exact timing, maximising data usage.
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Conclusion: Spine kinematics during flexion and extension of the trunk do not appear to be a valid measure of disability in patients with subacute and chronic back pain.
The KOS has been shown to be a reliable and valid measure of disability in patients with knee impairments [11, 12].
This tool has been shown to be reliable and valid for assessing disability in children and adolescents and was found to be easy to complete and use within an active clinical setting.
The NDI is a reliable and valid outcome of disability in neck pain [ 15, 16].
The Dutch language version of the DASH questionnaire was found to be reliable and valid for assessing disability and symptoms in patients with upper limb disorders [ 18].
The NDI is widely used, is reported to be reliable (intraclass correlation coefficient up to 0.98) and valid measurement of disability in neck pain disorders.
The SF-36 has shown to be a reliable and valid measure of disability in different languages for different pathologies, including WAD [ 16- 23].
The PDI is found to be a reliable and valid measurement of disability in patients with persistent pain [ 39, 41] as well as patients with acute pain [ 11].
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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com