Name: measuring the kinematics of daily living movements with motion capture systems in virtual reality
Uploaded: 2018-04-05T14:00:00
Description: Watch this Scientific Journal Video about Measuring the Kinematics of Daily Living Movements with Motion Capture Systems in Virtual Reality at JoVE.com

K.S. og Al bidrar like. Denne forskningen ble støttet av grunnleggende vitenskap forskningsprogrammet gjennom National Research Foundation av Korea (NRF) finansiert av departementet for vitenskap, IKT og fremtiden planlegging (NRF-2016R1D1A1B03931389).

Alle eksperimentelle prosedyrene som er beskrevet her ble godkjent av institusjonelle gjennomgang styret av Hanyang universitetet, ifølge erklæringen i Helsingfors (HYI-15-029-2). 6 sunne kontroller (4 menn og 2 kvinner) og 6 MCI pasienter (3 menn og 3 kvinner) var rekruttert fra et høyere medisinsk senter, Hanyang universitetssykehus.
1. rekrutter deltakere
<ol><li>Rekruttere MCI pasienter (dvs., svekket IADL evner) og sunn kontroller (dvs., normal IADL evner) mellom 70...

<ol>
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Soc. 20 (5), 468-477 (2014).</li><li>Klinger, E., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=AGATHE:+A+tool+for+personalized+rehabilitation+of+cognitive+functions+based+on+simulated+activities+of+daily+living.">AGATHE: A tool for personalized rehabilitation of cognitive functions based on simulated activities of daily living.</a> IRBM. 34 (2), 113-118 (2013).</li><li>White, D., Burdick, K., Fulk, G., Searleman, J., Carroll, J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=A+virtual+reality+application+for+stroke+patient+rehabilitation.">A virtual reality application for stroke patient rehabilitation.</a> ICMA. 2, 1081-1086 (2005).</li><li>Dimbwadyo-Terrer, I., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Activities+of+daily+living+assessment+in+spinal+cord+injury+using+the+virtual+reality+system+Toyra:+functional+and+kinematic+correlations.">Activities of daily living assessment in spinal cord injury using the virtual reality system Toyra: functional and kinematic correlations.</a> Virtual Real. 20 (1), 17-26 (2016).</li><li>Preische, O., Heymann, P., Elbing, U., Laske, C. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Diagnostic+value+of+a+tablet-based+drawing+task+for+discrimination+of+patients+in+the+early+course+of+Alzheimer's+disease+from+healthy+individuals.">Diagnostic value of a tablet-based drawing task for discrimination of patients in the early course of Alzheimer's disease from healthy individuals.</a> J. Alzheimers. Dis. 55 (4), 1463-1469 (2017).</li><li>Seo, K., Kim, J. K., Oh, D. H., Ryu, H., Choi, H. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Virtual+daily+living+test+to+screen+for+mild+cognitive+impairment+using+kinematic+movement+analysis.">Virtual daily living test to screen for mild cognitive impairment using kinematic movement analysis.</a> PLOS ONE. 12 (7), e0181883 (2017).</li><li>Albert, M. 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Vi detaljerte Kinematisk måling protokollen daglige levende bevegelser med motion capture systemer i en nedsenkning VR omgivelsene. Først eksperimentelle innstillingen guidet til å definere, forberede, og bli deltakere med oppslukende VR miljøet. Deretter utviklet vi to standardiserte IADL aktiviteter i VR. Tredje er trinn 3 og trinn 5 i delen protokollen de viktigste trinnene å minimere VR sykdom. Når du setter opp motion capture systemer i det virtuelle miljøet (trinn 3), er det viktig å montere sporing kamerae...

Instrumental dagliglivets aktiviteter (IADL), som håndterer finanstransaksjoner ved offentlig transport og matlaging, er medisinsk markører siden de krever flere nevropsykologiske funksjoner1. Svekket IADL evner anses dermed forløpere til nevrologiske sykdommer, slik som mild kognitiv svekkelse (MCI) og demens2. Golds omfattende gjennomgang av IADL aktiviteter3 indikerte at mer kognitivt krevende oppgaver, for eksempel håndtering økonomi og bruk av kollektivtransport, var den tidligste prediktor for MCI og demens.
Hittil er de mest brukte vurderingene av IADL egenrapporterte spørreskjemaer, informant-baserte spørreskjemaer og ytelsesbasert vurderinger4. Spørreskjema-baserte vurderinger av IADL er kostnadseffektiv og lett å bruke, men er utsatt for subjektive bias. For eksempel når selv rapporterer, pasienter tendens til å over - eller under - estimate deres IADL evner5. Tilsvarende informanter bedømme galt IADL evner på grunn av observatørens misoppfatninger eller kunnskap hull4. Dermed ha prestasjonsbasert vurderinger som spør pasienter til å utføre bestemte oppgaver som IADL vært foretrukket, men mange av oppgavene som er passende for en generell klinisk setting6.
Virtual reality (VR) studier har nylig vist at denne teknologien kan ha betydelig programmer i medisin og helsetjenester, som inkluderer alt fra trening til rehabilitering til medisinsk vurdering7. Alle deltakere kan testes under de samme VR-forholdene, som etterligner virkeligheten. For eksempel Allain et al. 8 utviklet en virtuell kaffe aktivitet og viste at pasienter med kognitiv svekkelse utført oppgaven dårlig. Klinger et al. 9 utviklet et annet VR miljø for adresseetiketter og shopping aktiviteter og fant et meningsfylt forhold mellom task Fullføringstidspunkt i VR og nevropsykologiske testresultater. Tidligere VR studier av IADL vurdering har hovedsakelig fokusert på enkel ytelse tiltak som reaksjon eller nøyaktighet ved konvensjonelle input-enheter som mus og tastatur8,9. Mer detaljert ytelsesdata om IADL er derfor nødvendig å effektivt skjermen for pasienter med MCI4.
Kinematisk analyse av real-time motion capture data er en kraftig tilnærming til kvantitativt dokumentere detaljerte ytelsesdata tilknyttet IADL aktiviteter. For eksempel hvit et al. 10 utviklet virtuell kjøkken som fanger deltakerens felles vinkel data under daglige levende oppgaver og brukes opptaksdata kvantitativt vurdere effektiviteten av fysioterapi. Dimbwadyo-Terrer et al. 11 utviklet en nedsenkning VR omgivelsene for å vurdere øvre lem ytelse når du utfører grunnleggende daglige levende oppgaver og viste at Kinematisk data registrert i VR omgivelser sterkt korrelert med funksjonell skalaer av den øvre lem. Disse Kinematisk analyser med motion capture systemer kunne gi ytterligere mulighet til å vurdere en pasient kognitiv svekkelse12. Inkludering av detaljert Kinematisk dataene i screening for pasienter med MCI forbedret klassifiseringen av pasienter i forhold til sunn kontroller13.
Her beskriver vi en protokoll for å vurdere kinematikken daglige levende bevegelser med motion capture systemer i en nedsenkning VR omgivelsene. Protokollen består to komplekse IADL oppgaver: "oppgave 1: ta ut penger" (håndtere finansielle transaksjoner) og "oppgave 2: buss" (med offentlig transport). Mens oppgavene var utført, sporet et motion capture system på posisjon og orientering av dominante hånd og hodet. Etter endt aktivitet 1, ble dominante hånd banen, flytte avstand og tid til ferdigstillelse samlet. I oppgave 2, ble leder banen, flytte avstand og tid til ferdigstillelse samlet. Representant resultatinndelingen i denne artikkelen detaljer foreløpig test av pasienter med MCI (dvs.IADL evner er svekket) sammenlignet med friske kontroller (dvs.IADL evner er intakt).

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			<td height="357" style="height:357px;width:216px;">Computer</td>
			<td style="width:161px;">N/A</td>
			<td style="width:127px;">N/A</td>
			<td style="width:457px;">Computer requirements:&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; - Single socket H3 (LGA 1150) supports 
			- Intel&#174; Xeon&#174; E3-1200 v3, 4th gen. Core i7/i5/i3 processors 
			- Intel&#174; C226 Express PCH 
			- Up to 32GB DDR3 ECC/non-ECC 1600MHz UDIMM in 4 sockets 
			- Dual Gigabit Ethernet LAN ports 
			- 8x SATA3 (6Gbps) 
			- 2x PCI-E 3.0 x16, 3x PCI-E 2.0 x1, and 2x PCI 5V 32-bit slots 
			- 6x USB 3.0 (2 rear + 4 via headers) 
			- 10x USB 2.0 (4 rear + 6 via headers) 
			- HD Audio 7.1 channel connector by Realtek ALC1150 
			- 1x DOM power connector and 1x SPDIF Out Header 
			- 800W High Efficiency Power Supply 
			- Intel Xeon E3-1230v3 
			- DDR3 PC12800 8GB ECC 
			- WD 1TB BLUE WD 10EZEX&#160; 3.5&#34; 
			- NVIDIA QUADRO K5000 &#38; SYNC</td>
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		<tr height="84">
			<td height="84" style="height:84px;width:216px;">Stereoscopic 3D Projector</td>
			<td style="width:161px;">Barco</td>
			<td style="width:127px;">F35 AS3D WUXGA&#160;</td>
			<td style="width:457px;">Resolution:&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; - WQXGA (2,560 x 1,600)&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; - Panorama (2,560 x 1,080)&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; - WUXGA (1,920 x 1,200), 1080p (1,920 x 1,080)&#160;</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">Stereoscopic Glasses</td>
			<td style="width:161px;">Volfoni&#160;</td>
			<td style="width:127px;">Edge 1.2</td>
			<td>For further information, visit http://volfoni.com/en/edge-1-2/</td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:216px;">Motion Capture Systems</td>
			<td style="width:161px;">NaturalPoint OptiTrack</td>
			<td style="width:127px;">17W</td>
			<td style="width:457px;">For further information, visit http://optitrack.com/products/prime-17w/</td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:216px;">OptiTrack (Motion capture software)</td>
			<td style="width:161px;">NaturalPoint OptiTrack</td>
			<td style="width:127px;">Motive 2.0</td>
			<td style="width:457px;">For further information, visit https://optitrack.com/downloads/motive.html</td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:216px;">MiddleVR (Middleware software)</td>
			<td style="width:161px;">MiddleVR</td>
			<td style="width:127px;">MiddleVR For Unity</td>
			<td style="width:457px;">For further information, visit http://www.middlevr.com/middlevr-for-unity/</td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:216px;">VRDaemon (Middleware software)</td>
			<td style="width:161px;">MiddleVR</td>
			<td style="width:127px;">MiddleVR For Unity</td>
			<td style="width:457px;">For further information, visit http://www.middlevr.com/middlevr-for-unity/</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">Unity3D (Game engine)</td>
			<td style="width:161px;">Unity Technologies</td>
			<td style="width:127px;">Personal</td>
			<td>For further information, visit https://unity3d.com/unity</td>
		</tr>
	</tbody>
</table>

measuring the kinematics of daily living movements with motion capture systems in virtual reality

Manglende evne til å fullføre instrumental aktiviteter dagliglivets (IADL) er en forløper til ulike nevropsykologiske sykdommer. Spørreskjema-baserte vurderinger av IADL er enkel å bruke, men utsatt for subjektive bias. Her beskriver vi en ny virtual reality (VR) test for å vurdere to komplekse IADL oppgaver: håndtere finansielle transaksjoner og bruke offentlig transport. Mens deltaker utfører oppgaver i VR omgivelser, en bevegelse fange system spor på posisjon og orientering av dominante hånd og hodet i en tredimensjonal kartesisk koordinatsystem. Kinematisk rådata er samlet og konvertert til 'Kinematisk arbeidsmål,' dvsbevegelse bane, flytte avstand og tid til ferdigstillelse. Bevegelse bane er banen til en bestemt kroppsdel (f.eks, dominante hånd eller hodet) i rommet. Flytte avstand refererer til den totale avstanden av banen, og tid til ferdigstillelse er hvor lang tid det tok for å fullføre en IADL oppgave. Tiltakene Kinematisk kunne diskriminere pasienter med kognitiv svekkelse fra sunn kontroller. Utviklingen av denne Kinematisk måling protokollen oppdages tidlig IADL-relaterte kognitive hemninger.

CSV-filer fra "oppgave 1: ta ut penger" ble analysert ved hjelp av statistisk programvare R til å beregne den dominante hånd banen, flytte avstand og tid til ferdigstillelse. Banen til den dominante hånd bevegelsen er visualisert (figur 6). Flytte avstanden av dominerende hånden beregnes ved å summere den totale avstanden mellom sekvensielle hånd posisjoner mens du utfører aktivitet 1. Avstanden mellom posisjoner er Euclidian avstanden. Tid til ferdigs...

Watch this Scientific Journal Video about Measuring the Kinematics of Daily Living Movements with Motion Capture Systems in Virtual Reality at JoVE.com

Measuring the Kinematics of Daily Living Movements with Motion Capture Systems in Virtual Reality

Vi utviklet en virtuell virkelighet test å vurdere instrumental aktiviteter dagliglivets (IADL) med motion capture system. Vi foreslår en detaljert Kinematisk analyse å tolke deltakerens ulike bevegelser, inkludert bane, flytte avstand og tid til ferdigstillelse å evaluere IADL evner.

Måle kinematikken daglige levende bevegelser med Motion Capture systemer i virtuell virkelighet

The inability to complete instrumental activities of daily living (IADL) is a precursor to various neuropsychological diseases. Questionnaire-based ...

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