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Äldre människors statiska och dynamiska balans - Reaktionstid spelar roll
Luleå University of Technology, Department of Health Sciences, Health and Rehabilitation.
2018 (Swedish)Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
Abstract [sv]

Fallolyckor är den i särklass vanligaste olyckstypen som leder till flest dödsfall ivärlden. Inga studier har tidigare utförts med syftet att undersöka korrelationen mellanreaktionstid och balans. Studiens syfte var att analysera och sammanställa insamlad dataför variablerna reaktionstid (RT), bedömningsinstrumentet Short Physical PerformanceBattery (SPPB) och posturalt svaj (CoP) för att undersöka om det fanns någonkorrelation mellan RT och SPPB eller CoP. Data samlades in från 45 deltagare genomtester av variablerna reaktionstid, SPPB-poäng samt posturalt svaj. Data kalkylerades iMicrosoft Office Excel® och presenterades med deskriptiv statistik där variablernabeskrevs i tabeller med medelvärde, standardavvikelse och 95 % konfidensintervall.Korrelations-koefficienten räknades ut med Pearsons produktmomentkorrelationskoefficient (r) och determinationskoefficient (R2). Studien visade att korrelationenmellan reaktionstid och totalpoängen i SPPB hade ett medelsvagt linjärt samband (r= -0.341). Korrelationen i de olika delmomenten i SPPB visade ett medelstarkt och starktlinjärt samband mellan reaktionstid och balanstest (r= -0.510) respektive gånghastighet(r= -0.698) hos kvinnor men inte hos män. Det linjära sambandet mellan uppresningaroch reaktionstid visade en svag korrelation hos både kvinnor (r= -0.311) och män (r= -0.342). Det fanns ett starkt linjärt samband mellan RT och CoP-variablerna maximaltanterio-posteriort svaj med ögonen öppna på mjukt underlag (r= 0.710), ett medelstarktsamband mellan RT och svajvelocitet med ögonen öppna på mjukt underlag (r= -0.464)och även mellan reaktionstid och anterio-posterior stabilitetsgräns (r= -0.408). Ingeteller svagt linjärt samband förelåg mellan RT och de olika variablerna där deltagarenhar slutna ögon. Studien visar att längre reaktionstid också är associerad med ökatposturalt svaj i stående position på ett mjukt underlag med ögonen öppna. Längrereaktionstid är också associerad med sämre balans och lägre gånghastighet hos kvinnormen inte hos män.

Abstract [en]

Fall accidents are by far the most common type of accident that leads to the highestnumber of deaths in the world. No studies have previously been conducted with thepurpose of examining the correlation between reaction time and balance. The purpose ofthe study was to analyze and compile collected data for the variables reaction time (RT),Short Physical Performance Battery (SPPB) and Postural sway (CoP) to investigatewhether there was any correlation between RT and SPPB or CoP. The author has takennote of existing data from the BAHRT-Balancing Human and Robot project. Data werecollected from 45 participants through tests of reaction time, SPPB scores and posturalsway. Data were calculated in Microsoft Office Excel® and was presented withdescriptive statistics where the variables were described in mean, standard deviation,and 95% confidence intervals. The correlation coefficient was calculated usingPearson's product moment correlation coefficient (r) and determination coefficient (R2).The study showed that the correlation between reaction time and total score in SPPBhad a medium-low linear relationship (r = -0,341). The correlation in the differentcomponents of SPPB showed a medium and strong linear relationship between RT andbalance test (r = -0,510) and walking velocity (r = -0,698) in women, but not in men.The linear relationship between Chair Stand Test and RT showed a weak correlation inboth women (r = -0.311) and men (r = -0.342). There was a strong linear relationshipbetween the RT and CoP variables maximum anterior sway with eyes open on unstablesurface (max AP sway UEO) (r= 0.710), a medium-strong relationship between RT andsway velocity with eyes open on unstable surface (velocity sway, UEO) (r= -0.464),also between RT and anterior-posterior Limits of Stability (AP LoS) (r= -0.408). Therewere no or weak linear relationship between RT and the various CoP variables in whichthe participant eyes were closed. The study shows that increased reaction time alsomeans increased postural sway in standing position on unstable surface with eyes open.Increased reaction time also means poorer balance and lower walking speed in womenbut not in men.

Place, publisher, year, edition, pages
2018. , p. 27
Keywords [en]
center of pressure, elderly, fall prevention, postural control, reaction time
Keywords [sv]
center of pressure, äldre, fallprevention, postural kontroll, reaktionstid
National Category
Medical and Health Sciences
Identifiers
URN: urn:nbn:se:ltu:diva-69544OAI: oai:DiVA.org:ltu-69544DiVA, id: diva2:1218734
Subject / course
Student thesis, at least 15 credits
Educational program
Physiotherapy, master's level (60 credits)
Presentation
2018-05-31, 19:49 (Swedish)
Supervisors
Examiners
Projects
BAHRT - Balancing Human and RobotAvailable from: 2018-06-20 Created: 2018-06-14 Last updated: 2018-06-20Bibliographically approved

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  • apa
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