Sunday, 10 December 2017

Measuring Hand Function

Online monitoring of hand function. Are you up for doing the BRAIN test or will the cardboard 9HPT do the job? 

Shribman S, Hasan H, Hadavi S, Giovannoni G, Noyce AJ. The BRAIN test: a keyboard-tapping test to assess disability and clinical features of multiple sclerosis. J Neurol. 2017 Dec 4. doi: 10.1007/s00415-017-8690-x. [Epub ahead of print]

BACKGROUND: The BRadykinesia Akinesia INcordination (BRAIN) test is an online keyboard-tapping test previously validated as a sensitive tool for detecting signs of Parkinson's disease.

OBJECTIVES: To determine whether the BRAIN test can measure disability in MS and identify the presence of pyramidal or cerebellar dysfunction.
METHODS: Kinesia scores (KS, number of key taps in 30 s), akinesia times (AT, mean dwell time on each key) and inco-ordination scores (IS, variance of travelling time between keys) were calculated in 39 MS patients. These were correlated against the Expanded Disability Status Scale (EDSS) scores, pyramidal and cerebellar functional system scores and 9-hole peg test scores.

RESULTS: EDSS correlated with KS (r = - 0.594, p < 0.001), AT (r = 0.464, p = 0.003) and IS (r = 0.423, p = 0.007). 9-HPT scores strongly correlated with KS (r = 0.926, p < 0.001). Pyramidal scores correlated with KS (r = - 0.517, p < 0.001). Cerebellar scores correlated with KS (r = - 0.665, p < 0.001), AT (r = 0.567, p < 0.001) and IS (r = 0.546, p = 0.007). Receiver operating characteristic curves demonstrate that KS can distinguish between the presence or absence of pyramidal and cerebellar dysfunction with area under curve 0.840 (p < 0.001) and 0.829 (p < 0.001), respectively.

CONCLUSIONS: The BRAIN test can remotely measure disability in MS. Specific scores differ according to the presence and severity of pyramidal or extrapyramidal dysfunction. It demonstrates huge potential in monitoring disease progression in clinical trials.

This is a study by ProfG so he should have posted on it. It is a computer-based test and it was correlated to a number of different tests and I thought urgh the correlations are about as bad as most MRI studies and they were not that great but then we get to the nine-hole peg test and thought wow r=0.928 this is real correlation so the tapping of a keyboard correlates with the 9HPT, so changes in hand function could be measured remotely so can this be used in MSChariot trial

1 comment:

  1. Very, *very* close to my heart - as many of my previous comments will show you.

    Is there any way I could try this?

    I have a 9HPT device, if it's any help.


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