Using Portable Transducers to Measure Tremor Severity

Hsu AW Piboolnurak PA Floyd AG et al Spiral analysis in Niemann-Pick disease type C Mov Disord 2009 24 1984 1990 doi: 10.1002/mds.22744 19672994

Randall JE Stiles RN Power spectral analysis of finger acceleration tremor J Appl Physiol 1964 19 357 360 14155314

Stiles RN Randall JE Mechanical factors in human tremor frequency J Appl Physiol 1967 23 324 330 6047952

Morgan MH Hewer RL Cooper R Intention tremor – a method of measurement J Neurol Neurosurg Psychiatry 1975 38 253 258 doi: 10.1136/jnnp.38.3.253 1151405

Rodríguez-Martín D Pérez-López C Samà A Cabestany J Català A A wearable inertial measurement unit for long-term monitoring in the dependency care area Sensors 2013 13 14079 14104 doi: 10.3390/s131014079 24145917

Elble RJ Sinha R Higgins C Quantification of tremor with a digitizing tablet J Neurosci Methods 1990 32 193 198 doi: 10.1016/0165-0270(90)90140-B 2385136

Pullman SL Spiral analysis: a new technique for measuring tremor with a digitizing tablet Mov Disord 1998 13 85 89 doi: 10.1002/mds.870131315 9827601

Feys P Helsen W Prinsmel A Ilsbroukx S Wang S Liu X Digitised spirography as an evaluation tool for intention tremor in multiple sclerosis J Neurosci Methods 2007 160 309 316 doi: 10.1016/j.jneumeth.2006.09.019 17113154

Haubenberger D Kalowitz D Nahab FB et al Validation of digital spiral analysis as outcome parameter for clinical trials in essential tremor Mov Disord 2011 26 2073 2080 doi: 10.1002/mds.23808 21714004

Haubenberger D McCrossin G Lungu C et al Octanoic acid in alcohol-responsive essential tremor: a randomized controlled study Neurology 2013 80 933 940 doi: 10.1212/WNL.0b013e3182840c4f 23408867

Zesiewicz TA Sullivan KL Hinson V et al Multisite, double-blind, randomized, controlled study of pregabalin for essential tremor Mov Disord 2013 28 249 250 doi: 10.1002/mds.25264 23238907

Elble RJ Lyons KE Pahwa R Levetiracetam is not effective for essential tremor Clin Neuropharmacol 2007 30 350 356 doi: 10.1097/WNF.0b013E31807A32C6 18090460

Lift Pulse app for Android http://play.google.com/store/apps/details?id=com.liftlabsdesign.liftpulse

Dai H Zhang P Lueth TC Quantitative assessment of parkinsonian tremor based on an inertial measurement unit Sensors 2015 15 25055 25071 doi: 10.3390/s151025055 26426020

Bendat JS Piersol AG Random data: analysis and measurement procedures 4th ed Hoboken, NJ Wiley 2010

Deuschl G Bain P Brin M Consensus statement of the Movement Disorder Society on Tremor. Ad Hoc Scientific Committee Mov Disord 1998 13 2 23 doi: 10.1002/mds.870131303 9827589

Baizabal-Carvallo JF Cardoso F Jankovic J Myorhythmia: phenomenology, etiology, and treatment Mov Disord 2015 30 171 179 doi: 10.1002/mds.26093 25487777

Lambrecht S Gallego JA Rocon E Pons JL Automatic real-time monitoring and assessment of tremor parameters in the upper limb from orientation data Front Neurosci 2014 8 221 doi: 10.3389/fnins.2014.00221 25120424

Gallego JA Rocon E Roa JO Moreno JC Pons JL Real-time estimation of pathological tremor parameters from gyroscope data Sensors 2010 10 2129 2149 doi: 10.3390/s100302129 22294919

Shaikh AG Jinnah HA Tripp RM et al Irregularity distinguishes limb tremor in cervical dystonia from essential tremor J Neurol Neurosurg Psychiatry 2008 79 187 189 doi: 10.1136/jnnp.2007.131110 17872981

van Someren EJ Pticek MD Speelman JD Schuurman PR Esselink R Swaab DF New actigraph for long-term tremor recording Mov Disord 2006 21 1136 1143 doi: 10.1002/mds.20900 16639727

Yang C-C Hsu Y-L A review of accelerometry-based wearable motion detectors for physical activity monitoring Sensors 2010 10 7772 7788 doi: 10.3390/s100807772 22163626

John D Freedson P ActiGraph and Actical physical activity monitors: a peek under the hood Med Sci Sports Exerc 2012 44 S86 S89 doi: 10.1249/MSS.0b013e3182399f5e 22157779

Elble RJ Gravitational artifact in accelerometric measurements of tremor Clin Neurophysiol 2005 116 1638 1643 doi: 10.1016/j.clinph.2005.03.014 15905122

Padgaonkar AJ Krieger KW King AI Measurement of angular acceleration of a rigid body using linear accelerometers J Appl Mech (Transactions ASME) 1975 42 552 556 doi: 10.1115/1.3423640

Bancroft JB Lachapelle G Estimating MEMS gyroscope G-sensitivity errors in foot mounted navigation 2nd International Conference on Ubiquitous Positioning, Indoor Navigation and Location-Based Service Helsinki IEEE 2012 1 6 http://plan.geomatics.ucalgary.ca/papers/upinlbs%202012_bancroft%202020etal_oct202012.pdf

Weinberg H Gyro mechanical performance: the most important parameter. Analog Devices 2011 Technical Article MS-2158 http://www.analog.com/media/en/technical-documentation/technical-articles/MS-2158.pdf

Elble RJ Physiologic and essential tremor Neurology 1986 36 225 231 doi: 10.1212/WNL.36.2.225 3945394

Shaikh AG Zee DS Jinnah HA Oscillatory head movements in cervical dystonia: dystonia, tremor, or both Mov Disord 2015 30 834 842 doi: 10.1002/mds.26231 25879911

Chie TY Which graphics drawing tablet to buy in 2015 (non-display types) http://www.parkablogs.com/content/which-graphics-drawing-tablet-buy-2015-non-display-types2014

Shatunov A Sambuughin N Jankovic J et al Genomewide scans in North American families reveal genetic linkage of essential tremor to a region on chromosome 6p23 Brain 2006 129 2318 2331 doi: 10.1093/brain/awl120 16702189

Elble RJ Brilliant M Leffler K Higgins C Quantification of essential tremor in writing and drawing Mov Disord 1996 11 70 78 doi: 10.1002/mds.870110113 8771070

Savitzky A Golay MJE Smoothing and differentiation of data by simplified least squares procedures Anal Chem 1964 36 1627 1639 doi: 10.1021/ac60214a047

Akano E Zesiewicz T Elble R Fahn-Tolosa-Marin scale, digitizing tablet and accelerometry have comparable minimum detectable change Mov Disord 2015 30 S556

Wang SY Aziz TZ Stein JF Liu X Time-frequency analysis of transient neuromuscular events: dynamic changes in activity of the subthalamic nucleus and forearm muscles related to the intermittent resting tremor J Neurosci Methods 2005 145 151 158 doi: 10.1016/j.jneumeth.2004.12.009 15922033

Torrence C Compo GP A practical guide to wavelet analysis Bull Am Meteorol Soc 1998 79 61 78 doi: 10.1175/1520-0477(1998)079<0061:APGTWA>2.0.CO;2.

Ayache SS Al-Ani T Farhat WH Zouari HG Creange A Lefaucheur JP Analysis of tremor in multiple sclerosis using Hilbert-Huang Transform Neurophysiol Clin 2015 45 475 484 doi: 10.1016/j.neucli.2015.09.013 26776079

Jankovic J Schwartz KS Ondo W Re-emergent tremor of Parkinson’s disease J Neurol Neurosurg Psychiatry 1999 67 646 650 doi: 10.1136/jnnp.67.5.646 10519872

Cleeves L Findley LJ Gresty M Assessment of rest tremor in Parkinson’s disease Adv Neurol 1986 45 349 352 3825709

Understanding FFTs windowing National Instruments 2015 http://www.ni.com/white-paper/4844/en/

Welch PD The use of fast Fourier transform for the estimation of power spectra: a method based on time averaging over short, modified periodograms IEEE Trans Audio Electroacoust 1967 AU-15 70 73 doi: 10.1109/TAU.1967.1161901

Welch PD On the relationship between batch means, overlapping batch means, and spectral estimation Thesen A Grant H Kelton WD Proceedings of the 1987 Winter Simulation Conference New York ACM 1987 320 323

Jenkins GM Watts DG Spectral analysis and its applications San Francisco, CA Holden-Day 1968

Rajaraman V Jack D Adamovich SV Hening W Sage J Poizner H A novel quantitative method for 3D measurement of Parkinsonian tremor Clin Neurophysiol 2000 111 338 343 doi: 10.1016/S1388-2457(99)00230-8 10680570

Elble RJ Pullman SL Matsumoto JY Raethjen J Deuschl G Tintner R Tremor amplitude is logarithmically related to 4- and 5-point tremor rating scales Brain 2006 129 2660 2666 doi: 10.1093/brain/awl190 16891320

Giuffrida JP Riley DE Maddux BN Heldman DA Clinically deployable Kinesia technology for automated tremor assessment Mov Disord 2009 24 723 730 doi: 10.1002/mds.22445 19133661

Cleeves L Findley LJ Variability in amplitude of untreated essential tremor J Neurol Neurosurg Psychiatry 1987 50 704 708 doi: 10.1136/jnnp.50.6.704 3612150

Elble RJ Higgins C Leffler K Hughes L Factors influencing the amplitude and frequency of essential tremor Mov Disord 1994 9 589 596 doi: 10.1002/mds.870090602. Erratum in: Mov Disord 1995;10:411 7845397

Pulliam CL Eichenseer SR Goetz CG et al Continuous in-home monitoring of essential tremor Parkinsonism Relat Disord 2014 20 37 40 doi: 10.1016/j.parkreldis.2013.09.009 24126021

Goetz CG Stebbins GT Wolff D et al Testing objective measures of motor impairment in early Parkinson’s disease: feasibility study of an at-home testing device Mov Disord 2009 24 551 556 doi: 10.1002/mds.22379 19086085

Weir JP Quantifying test-retest reliability using the intraclass correlation coefficient and the SEM J Strength Cond Res 2005 19 231 240 doi: 10.1519/00124278-200502000-00038 15705040

Elble R Zesiewicz T Fahn-Tolosa-Marin tremor scale and digitizing tablet have comparable minimum detectable change Mov Disord 2015 30 S558

Louis ED More time with tremor: the experience of essential tremor versus Parkinson’s disease patients Mov Disord Clin Pract 2016 3 36 42 doi: 10.1002/mdc3.12207

Spooner J Dressing SA Meals DW Minimum detectable change analysis. Tech Notes 7, December 2011. Environmental Protection Agency 2011 http://www.bae.ncsu.edu/programs/extension/wqg/319monitoring/tech_notes.htm: U.S

Heldman DA Espay AJ LeWitt PA Giuffrida JP Clinician versus machine: reliability and responsiveness of motor endpoints in Parkinson’s disease Parkinsonism Relat Disord 2014 20 590 595 doi: 10.1016/j.parkreldis.2014.02.022 24661464

Randall JE A stochastic time series model for hand tremor J Appl Physiol 1973 34 390 395 4688133