Дисертації з теми "Wii Balance Board"

Background Fall-related  injuries may have huge and enduring impact on older people, resulting in chronic pain, disabled mobility and reducing the quality of life. Fall injuries is becoming a worldwide problem among older people and as a result, the measurement of balance ability for older people is of great importance. In this master thesis, a system used to measure balance ability will be introduced. The system allows participants to perform a series of balance tasks with the help of Wii balance board (WBB) which is a low-cost, commercial gamming instrument. Previous work has showed the possibility and reliability of using WBB to measure the balance ability for older people. Methods Mean sway velocity (MSV) is used to measure the tandem stance test.  Five-Repetition Sit-to-Stand (STS) test is measured by STS time. Since the system has high requirements on the input validity, input validation is also a main part of this thesis. Matlab is used to check the output validity of the program. Results For the tandem stance test, our results (mean = 7.87) are much larger than the results from previous work (mean = 4.27). The results indicate that experimental factors such as standing posture and testing time have great impact on the average MSV results for tandem stance test. For the five-repetition Sit-to-Stand test, our young participant did 9.97 seconds on average which is close to previous work (8.2 for average young people without balance disorders) The results from output validation test for tandem stance show that the correctness of the program is highly reliable. Conclusions We found standing postures and testing time is very sensitive to MSV. To conduct a tandem stance test, the hardware should also be considered to be one of the main factors that affects MSV. Testing results again indicate STS time is a good measurement for STS test. In our input validation test for tandem stance, we also found an effective and sensitive interval for the arguments which can be considered to be a good discriminator to distinguish between valid and invalid inputs.

PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO
COORDENAÇÃO DE APERFEIÇOAMENTO DO PESSOAL DE ENSINO SUPERIOR
PROGRAMA DE EXCELENCIA ACADEMICA
O equilíbrio corporal é uma importante habilidade física e um aspecto fundamental para a saúde dos idosos, sendo as quedas a principal causa de lesões não intencionais que levam a perda de autonomia e ao óbito neste grupo. Com o envelhecimento da população mundial e sendo os déficits de equilíbrio uma das maiores causas de atendimentos fisioterapêuticos, o uso de instrumentos portáveis de baixo custo e confiáveis para avaliação do equilíbrio são de extrema relevância. Diversos estudos avaliaram a validade concorrente e/ou confiabilidade do Microsoft Kinect (Kinect) e do Nintendo Wii Balance Board (WBB) durante testes de equilíbrio. Estes estudos foram favoráveis ao uso destes equipamentos nestas avaliações em posições semi-estáticas. Este estudo examinou a confiabilidade teste-reteste com o uso concorrente do Kinect e do WBB durante um teste de equilíbrio em três posições semi-estáticas, analisando variáveis do centro de pressão (CoP) e do centro de gravidade (CoG) em manequins e em 70 indivíduos saudáveis. Cada participante executou dois testes na mesma sessão. Os equipamentos demonstraram sensibilidade para identificar diferentes padrões de oscilação corporal. As variáveis mais confiáveis foram a velocidade média e o percurso total em todas as direções e tarefas. A confiabilidade foi considerada de fraca a boa nos testes com pessoas e nos testes com manequins, excelente. Porém, os resultados com as variáveis das pessoas baseadas em dados consolidados das três tarefas alcançaram confiabilidade excelente. Propriedades do CoP demonstraram ser mais confiáveis do que as do CoG, sugerindo que o WBB seja superior ao Kinect nesta tarefa. O presente trabalho corrobora estudos anteriores, podendo, estes dispositivos, prover informações quantitativas confiáveis, aprimorando avaliações qualitativas do equilíbrio.
Body balance is an important physical skill and it is fundamental for elderly´s health, considering that falls are a major cause of unintentional injuries leading to the loss of autonomy and death in this group. Growth of aging in world population and being balance impairment one of the major causes of physiotherapeutic attendance, simple, affordable, portable, and reliable devices for evaluating body balance are of great relevance. Several studies have been examining concurrent validity and reliability of Microsoft Kinect (Kinect) and Nintendo Wii Balance Board (WBB) during balance tests. The majority of these studies suggested that those devices could be used as reliable and valid tools for assessing balance in semi-static positions. Based on that, this study investigated test-retest reliability using Kinect and WBB, concurrently, in three standing positions, and analyzed variables related to center of pressure (CoP) and center of gravity (CoG), in static manikins and in 70 healthy subjects. Each participant performed the set of tests twice in the same day. Our solution demonstrated sensibility to identify different body sway patterns. Tests showed that the most reliable variables were average speed and total path length in all directions and tasks. Despite tests with static manikin signalized excellent reliability, tests with individuals were considered poor to good. However, variables of consolidated data based on different tasks achieved excellent scores. CoP properties outperformed those related to CoG, suggesting that WBB was superior when compared to Kinect in providing more reliable body sway information. This study reinforced that these devices may provide reliable quantitative information that enhances qualitative body balance assessments.

Made available in DSpace on 2016-03-15T19:39:50Z (GMT). No. of bitstreams: 1 Rosangela Guimaraes Romano.pdf: 1098989 bytes, checksum: f51f24fa8fd2a68da8e9838fe10773d5 (MD5) Previous issue date: 2012-02-09
Fundo Mackenzie de Pesquisa
The aim of this study was to evaluate the static equilibrium from the use of the Nintendo Wii Fit - Balance Board (WBB) and compare the anterior-posterior and lateral-side in children and adolescents age 7-14 years, with eyes open and closed. The subjects were 80 children and adolescents enrolled in a public school in the region of greater Sao Paulo, paired by gender and age, dichotomized at ages 7 to 10 (children) and 11-14 years (adolescents). For the collection the Balance Board (BB) and LabView software version 11.0 were used. The assessed remained in bipedal support for 60 seconds, running three measures with eyes open and closed with three measures. The results were compared to age for the two axes X and Y shift from the four sensors located at the ends of the BB. Data were analyzed using the Student t test with significance level of 95%. For statistical analysis we used the statistical software Minitab 16. The results indicated that children and adolescents in the displacements of the axes X and Y were similar in the two age groups, however, adolescents have greater variability in some measures, no statistical significance. When comparing the behavior of groups of dislocations in X and Y axes with eyes open and closed there was no significant difference, contrary to what has been pointed out by the literature, there is similarity in the oscillations with or without visual stimulation. It is concluded that the WBB could be an alternative equipment for the assessment of static balance from the adaptation of the LabView software, and that further studies should be performed so that the knowledge about the use of this equipment as a tool for assessment of balance can be expanded and applied with greater confidence in the accuracy of the data.
O objetivo deste estudo foi avaliar o equilíbrio estático a partir da utilização do Nintendo Wii Fit Balance Board (WBB) e comparar as oscilações ântero-posteriores e látero-laterais em crianças e adolescentes com a idade de 7 a 14 anos, com olhos abertos e fechados. Os sujeitos foram 80 crianças e adolescentes, regularmente matriculados em uma escola pública da região da Grande São Paulo, pareados por gênero e idade, dicotomizada nas faixas etárias de 7 a 10 (crianças) e 11 a 14 anos (adolescentes). Para a coleta foram utilizados o Balance Board (BB) e o software LabView versão 11.0. Os avaliados permaneciam em apoio bipodal, por 60 segundos, sendo executadas três medidas com olhos abertos e três medidas com olhos fechados. Os resultados foram comparados, para as duas faixas etárias para os eixos de deslocamento X e Y a partir dos quatro sensores localizados nas extremidades do BB. Os dados foram analisados com o teste t de Student com o nível de significância de 95%. Para a análise estatística foi utilizado o programa estatístico Minitab 16. Os resultados indicaram que crianças e adolescentes nos deslocamentos dos eixos X e Y não diferiram nas duas faixas etárias, porém, os adolescentes apresentaram maior variabilidade em algumas medidas, sem significância estatística. Quando comparado o comportamento dos grupos nos deslocamentos dos eixos X e Y com olhos abertos e fechados não foi encontrada diferença significativa, ao contrário do que vem sendo apontado pela literatura, havendo semelhança nas oscilações com ou sem o estímulo visual. Conclui-se que o WBB pode ser um equipamento alternativo para a avaliação do equilíbrio estático a partir da adaptação do software LabView e que novos estudos devem ser realizados para que o conhecimento sobre o uso deste equipamento como instrumento de avaliação de equilíbrio possa ser ampliado e aplicado com maior segurança na precisão dos dados.

Proper evaluation of postural stability is an integral part of the comprehensive management of concussed athletes. Clinicians are in need of a cost-effective and objective tool to assist them in their assessments performed in a variety of health care settings. This non-experimental design compared the Wii Balance Board (WBB), a recreational gaming system, to the Balance Error Scoring System (BESS), a tool developed for sports medicine clinicians for the assessment of postural stability in concussed athletes. The WBB has been proven to be used in various settings for rehabilitation but has not yet been used for the assessment of postural stability (Butler et al., 2010). This study hypothesized whether the WBB, when compared to the BESS, is an objective tool that can be used as an acceptable measurement of postural stability in college athletes. Ninety-one male collegiate football players participated in the study and were measured for postural stability both with the WBB and the BESS tool. Findings revealed that there was a direct and positive correlation between these two instruments. The WBB when compared to the BESS is found to valid tool in assessing postural stability. These results lay the foundation for future research on the WBB and its' usefulness in measuring postural stability. The portable and cost effective WBB potentially could be used in various settings to aid in the concussion management of athletes. It is imperative that nursing becomes more actively involved in the research, prevention and education of concussions. Nursing plays an integral role in the management of concussions and future research on concussions should be conducted by nurse scholars.

Bakgrund: Det finns funktionella tester med varierande svårighetsgrad för att utvärdera patienters balans i kliniken. Dessa tester kan dock endast visa på balansförmåga i grova drag, exempelvis om man kan ställa sig upp från en stol eller klarar att stå på ett ben utan att falla. För mer exakta metoder går det att använda sig utav en kraftplatta. Det har det tidigare undersökts huruvida en Wii Balance Board kan fungera som ett valitt substitut för en standardiserad kraftplatta då denna är lättare och mindre kostsam. Det har dock aldrig undersökts med ett testprotokoll där proprioceptionen hos deltagaren försökt påverkas. Syfte: Öka kunskapen om validiteten för Wii Balance Board i jämförelse med Kistler Force Plate vad gäller mätning av postural kontroll i stillastående med och utan nackrotation via bål och underkropp. Metod: Experimentell metod med 15 deltagare som genomförde tre olika test i stillastående, dels med nacken i neutralposition och dels roterad 45 grader genom att rotera bål och underkropp. Posturala svajet mättes med Wii Balance Board och kraftplatta samtidigt. Skillnader i resultaten uträknades och analyserades sedan med Bland-Altman plots metod och presenterades i grafer. Resultat: Generellt framkom mycket god samstämmighet mellan utrustningarna, dock påvisades anmärkningsvärt större avvikelser för tre av deltagarna. Diskussion: Tekniska problem som har påverkat experimentet har upptäckts under studiens gång och har tagits med för framtida kunskap. Även att standardisera de tester som genomfördes med mer detaljerade och strikta instruktioner för deltagaren att stå stilla är viktigt för att inte få onödigt posturalt svaj. Konklusion: Validiteten för Wii Balance Board bedömer vi som god då resultatet mellan plattorna stämde överens i hög grad. Det är dock viktigt att ta hänsyn till upptäckta avvikelser som går att undvika vid framtida upprepade försök tack vare kunskapen från denna studie.

Submitted by Marta Toyoda (1144061@mackenzie.br) on 2017-01-11T17:54:03Z No. of bitstreams: 2 Rosangela Guimarães Romano.pdf: 1943352 bytes, checksum: f34a8a95682df3bf22e02ed52967661d (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)
Approved for entry into archive by Eliezer Santos (eliezer.santos@mackenzie.br) on 2017-02-01T20:13:34Z (GMT) No. of bitstreams: 2 Rosangela Guimarães Romano.pdf: 1943352 bytes, checksum: f34a8a95682df3bf22e02ed52967661d (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)
Made available in DSpace on 2017-02-01T20:13:34Z (GMT). No. of bitstreams: 2 Rosangela Guimarães Romano.pdf: 1943352 bytes, checksum: f34a8a95682df3bf22e02ed52967661d (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Previous issue date: 2016-08-18
Fundo Mackenzie de Pesquisa
The static balance has been studied in people with Down Syndrome (DS) due to the peculiar characteristics of the syndrome that compromise the overall development and affect postural control. This study aimed to evaluate the static balance of children and adolescents with DS aged between 7 and 14 years under the condition of open and closed eyes. The present study included two groups with 80 participants each: Group with Down Syndrome (GDS) and control group (CG). Each group included 40 children and 40 adolescents totaling 160 evaluated subjects. The assessment took place in specialized care institutions for people with DS and in public mainstream schools in the region of São Paulo and the countryside. The instrument used for data collection was the Balance Board ™ (BB) of the Nintendo® Wii Fit and a laptop, in which a version of the LabVIEW 13.0 software was installed, for reading data from the BB sensors. Participants were evaluated with and without visual information for 30 seconds. The evaluations were performed in order to characterize and compare the postural sway in anteroposterior directions and medium-side and the pressure center analyses (COP). The results of the displacement of the X and Y axes and body mass indication measured by the four sensors of the BB were compared in terms of eyes open (EO) and eyes closed (EC) conditions for groups and performed with the statistical analysis using the Minitab 17 software. The results indicated that according to the analysis of the sensors, no significant differences in the conditions of OE and CE have been found between groups. However, the analysis of COP, the GDS presented greater sway and displacement in situations of OE and OC compared to the CG, this difference also being greater for the age group of children under EC condition. The study results point to the need to develop new low-cost equipment for assessment of balance and postural control.
O equilíbrio estático vem sendo estudado em pessoas com Síndrome de Down (SD) devido às características peculiares da síndrome que comprometem o desenvolvimento global e afetam o controle postural. O presente estudo teve como objetivo avaliar o equilíbrio estático de crianças e adolescentes com SD na faixa etária entre 7 e 14 anos nas condições de olhos abertos (OA) e olhos fechados (OF). Fizeram parte da pesquisa dois grupos com 80 participantes cada, sendo: Grupo com Síndrome de Down (GSD) e Grupo Controle (GC). Cada grupo contou com 40 crianças e 40 adolescentes totalizando 160 avaliados. A coleta ocorreu em instituições de atendimento especializado à população com SD e em escolas públicas do ensino regular na região de São Paulo e interior. O instrumento utilizado para coleta foi o Balance Board™ (BB) do Nintendo® Wii Fit e um laptop onde foi instalado uma versão adaptada do software LabVIEW 13.0 para leitura de dados provenientes dos sensores do BB. Os participantes foram avaliados com e sem informação visual por 30 segundos. As avaliações ocorreram a fim de caracterizar e comparar as oscilações posturais nas direções anteroposteriores e médio-laterais e a análise do centro de pressão (CP). Os resultados dos deslocamentos dos eixos X e Y e a indicação da massa do corpo mensurada pelos quatro sensores do BB foram comparados nas condições de OA e OF para os grupos e realizada com o programa estatístico Minitab 17. Os resultados indicaram que, pela análise dos sensores, não foram encontradas diferenças significativas nas condições de OA e OF entre os grupos. Contudo, pela análise do CP, o GSD apresentou maior oscilação e deslocamento nas situações de OA e OF quando comparado ao GC, sendo maior também para a faixa etária das crianças e na condição de olhos fechados. Os dados do estudo apontam para a necessidade do desenvolvimento de novos equipamentos de baixo custo para avaliação do equilíbrio e controle postural.

Scopo di questo studio è stato quello di analizzare le prestazioni di un sistema a costo contenuto per la valutazione dell’equilibrio posturale, avente funzionalità comparabili a quelle della strumentazione professionale attualmente impiegata. A tal fine si sono approfondite alcune proprietà misurative della Nintendo Wii Balance Board. L’interfacciamento tra periferica e computer è stato possibile grazie a un adattatore Bluetooth, i dati sono stati acquisiti con un software in linguaggio C++ appositamente sviluppato, e poi processati in Matlab. Per valutare l’affidabilità della Balance Board sono stati effettuati tre tipi di test. In primo luogo state analizzate le prestazione della WBB in condizioni statiche ponendo sopra la pedana tre tipi diversi di peso (1kg, 5kg e 20kg) in diciassette diverse posizioni, confrontando i risultati ottenuti con le coordinate reali dei punti di applicazione. Successivamente, sono state analizzate le prestazioni in condizioni dinamiche. In particolare, sono state confrontate le prestazioni della WBB e della pedana BERTEC in termini di ampiezza e fase dei segnali acquisiti da due soggetti ai quali è stato richiesto di eseguire otto diversi task motori. Infine sono state analizzate le prestazioni dei due diversi dispositivi confrontando i valori calcolati per i principali parametri stabilometrici relativi a quattro soggetti sani.

Made available in DSpace on 2014-12-17T15:16:20Z (GMT). No. of bitstreams: 1 NathaliaPOS_DISSERT.pdf: 1603301 bytes, checksum: 3c0c1f2df3c4b9a36151d032eba2a9d1 (MD5) Previous issue date: 2014-02-27
Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior
The Wii Balance Board (WBB) began to be investigated as a low-cost alternative for assessing static balance in vertical posture. However, studies employed methodological procedures that did not eliminate result variability between the tests and equipment used. Objective: Determine the validity and reproducibility of the WBB as an instrument for assessing static balance in the vertical position, using simultaneous data analysis and superimposed equipment. Methods: This is an accuracy study of 29 healthy young individuals of both sexes aged 18 to 30 years. Subjects were assessed 24h apart (test-retest), using unipodal and bipodal support tests, with eyes closed and open. To that end the WBB was placed on top of a force platform (FP) and data (postural sway) were collected simultaneously on both devices. Validity and reproducibility were analyzed using the interclass correlation coefficient (ICC). Finally, Bland-Altman analysis was applied to assess agreement. Results: The sample was composed of 23 women and 6 men, with mean age of 24.2?6.3 years, 60.7?6.3 kg and 1.64?4.2 m. The validity of the WBB compared to the FP was excellent for all 4 tasks proposed (ICC = 0.93 0.98). The reproducibility analyzed by test-retest was excellent for the bipodal support tasks (ICC = 0.93-0.98) and only moderate for the unipodal support tests (ICC = 0.46 0.70). Graphic analysis exhibited good agreement between the devices, since most of the measures were within the limits of agreement. Conclusion: this study proved the validity and reproducibility of the Wii Balance Board as an instrument for assessing static balance in vertical posture, using simultaneous analysis with superimposed equipment. Thus, the WBB has been increasingly used by physical therapists and other health professionals in their clinical practice, as both a rehabilitation and assessment tool
O Wii Balance Board (WBB) passou a ser investigado como uma alternativa de baixo custo para avalia??o do equil?brio est?tico na postura vertical. No entanto, as pesquisas utilizaram procedimentos metodol?gicos que n?o eliminaram a variabilidade de resultados existente entre os testes e equipamentos utilizados. Objetivo: Averiguar as propriedades de validade e reprodutibilidade do WBB como instrumento para avalia??o do equil?brio est?tico na postura vertical, por meio do m?todo de an?lise simult?nea de dados com a sobreposi??o de equipamentos. M?todos: Trata-se de um de estudo de acur?cia, no qual foram avaliados 29 jovens saud?veis de ambos os sexos de 18-30 anos. Os inviv?duos foram avaliados em 2 momentos distintos com intervalo de 24h (teste-reteste), atrav?s de testes de apoio unipodal e bipodal com olhos fechados e abertos. Para isso o WBB foi colocado sobre a Plataforma de for?a (PF) e a coleta dos dados (deslocamento total do Centro de Press?o) foi feita simultaneamente em ambos equipamentos. A validade e reprodutibilidade foram analisadas atrav?s do coeficiente de correla??o intraclasse (CCI). Por fim, foi feita uma an?lise de concord?ncia por meio do m?todo de Bland-Altman. Resultados: A amostra foi composta por 23 mulheres e 6 homens, com idade m?dia de 24,2?6,3 anos, 60,7?6,3 kg e 1,64?4,2 m. A validade do WBB em compara??o com a PF mostrou-se excelente para todas as 4 tarefas propostas (CCI = 0,93 0,98). A reprodutibilidade analisada atrav?s do teste-reteste mostrouse excelente para as tarefas de apoio bipodal (CCI = 0,93 0,88) e apenas moderada para os testes de apoio unipodal (CCI = 0,46 0,70). Na an?lise gr?fica, viu-se uma boa concord?ncia entre os dispositivos, j? que a maioria das medidas encontra-se dentro dos limites concord?ncia. Conclus?o: esta pesquisa provou a validade e reprodutibilidade do Wii Balance Board como um instrumento para avalia??o do equil?brio est?tico na postura vertical, atrav?s da an?lise simult?nea com sobreposi??o de equipamentos. Tornando o WBB cada vez mais vi?vel para sua utiliza??o na pr?tica cl?nica pelos fisioterapeutas e diversos profissionais de sa?de, n?o apenas como uma ferramenta de reabilita??o mas tamb?m de avalia??o

This work deals with the metods frequency and time frequency analysis of stabilometric signal. In the introroduction is described theory about posturography and posturographic measurment. The work contains describtion of stabilometric parametrs in time domain (1D and 2D parametrs) and in frequency domain. The aim is create review of basic metods used to processing and preprocessing of stabilometric signals and comparing this methods . In work is realized ferquency analysis used Frourier transfrmation and Burg method and time-frequency analysis used Short time Frourier transformation and Wavelet transformation. One part of program is aimed on comparison of this methods.

L’instabilité posturale est fréquente chez les séniors et peut entrainer la chute. La chute chez les séniors est un problème majeur de santé publique. Les chiffres épidémiologiques sont éloquents : une personne sur trois âgées de plus de 70 ans fera une chute dans l’année. Les causes sont multifactorielles : ostéo-articulaire, visuelle, cognitive, vestibulaire…. Dans cette étude, nous nous sommes intéressés à l’évolution de la fonction des récepteurs vestibulaires périphériques avec l’âge et à la perception de rotation à partir des entrées canalaires horizontales (système vestibulaire central et projections vestibulaires corticales). Notre but est d’essayer de comprendre l’implication du vieillissement du système vestibulaire dans l’instabilité posturale des séniors. Au niveau périphérique, nous avons quantifié la fonction des canaux semi-circulaires horizontaux par le test calorique et le vidéo-head impulse test. La fonction des récepteurs otolithiques (utriculaire et sacculaire) a été évaluée par les potentiels évoqués myogéniques recueillis au niveau cervical (voies sacculo-spinales) et oculaire (voies utriculo-oculaires). Au niveau central, la perception de l’entrée vestibulaire canalaire horizontale a été appréciée après irrigation à l’eau chaude du conduit auditif externe en appliquant un score de perception (présence ou absence de sensation rotatoire). Finalement, l’équilibre a été quantifié grâce au test d’organisation sensorielle sur l’Equitest et grâce à un système que nous avons récemment mis au point en collaboration avec le Professeur Curthoys à Sydney, comprenant une Wii Balance Board, un tapis mousse et un masque de réalité virtuelle (Oculus Rift). Les résultats ont montré une diminution des réponses oculaires au test calorique après 70 ans mais une absence de baisse du gain du réflexe vestibulo-oculaire horizontal au vidéo-head impulse test. La fonction otolithique, sacculaire et utriculaire, est altérée avec l’âge quelle que soit la stimulation utilisée (aérienne ou osseuse). La perception de l’entrée vestibulaire canalaire horizontale induite par une stimulation calorique nous a permis de montrer pour la première fois que certains séniors ne percevaient pas la sensation de rotation malgré une réponse oculaire normale (vitesse maximale de la phase lente du nystagmus oculaire supérieure à 15°/s). Dans notre population, nous avons pu ainsi définir deux types de séniors : un groupe présentant une perception de vertige rotatoire et un groupe « négligeant » ne pouvant pas reconstruire une sensation rotatoire à partir des entrées vestibulaires canalaires horizontales. La comparaison de ces deux groupes de séniors appariés sur l’âge ne montre aucune différence de la fonction canalaire horizontale ni de la fonction otolithique sacculaire et utriculaire. Néanmoins, les séniors négligents présentent en majorité des performances anormales (chute ou score diminué) à l’Equitest notamment en conditions 5 et 6. De plus, leur score au DHI est plus élevé relevant ainsi le handicape ressenti par ces séniors à cause de leur instabilité. En conclusion, les troubles de l’équilibre chez certains seniors pourraient résulter en partie d’une dysfonction vestibulaire centrale. Des études ultérieures permettront de déterminer si l’augmentation du seuil de perception rotatoire est un bon facteur prédictif du risque de chute
Postural instability is common in seniors and can lead to falls which seniors are a major problem for Public Health. Epidemiological studies clearly show the magnitude of this problem: one in three people aged than more 70 years will fall in a year. This is caused by multiple factors including: musculoskeletal, visual, cognition, vestibular… The present study concerns the effect of age on the vestibular peripheral receptors function and on the perception of rotation from horizontal canal inputs (central vestibular processing and vestibular cortical projection). The aim is to try to understand the vestibular mechanisms involved in postural instability and mobility with age. At the peripheral level, the horizontal canal function was assessed using caloric test and video-Head Impulse Test. Otolith function (saccular and utricular) was assessed using vestibular evoked myogenic potentials recorded at cervical level (sacculo-spinal pathways) and at ocular level (utriculo-ocular pathways). At the central level, perception of motion from vestibular horizontal canal inputs was studied after caloric stimulation with warm water using a subjective perceptual score (presence or absence of rotatory vertigo). Finally, postural equilibrium was assessed with the Sensory Organization Test on the Equitest machine and also with a new system developed in collaboration with Prof. Curthoys (Sydney) using a Wii Balance Board, a foam rubber pad and a virtual reality headset (Oculus Rift DK2). Results showed decreased ocular responses induced by caloric stimulation after 70 years of age but healthy horizontal gain of the vestibulo-ocular reflex assessed by video-head impulse testing. The otolithic (saccular and utricular) function is impaired with age for all the stimuli used (air or bone conducted). Perception of motion induced by caloric stimulation (vestibular horizontal canal inputs) allowed us to show for the first time that some seniors are unable to feel the induced rotatory vertigo even with normal ocular responses (peak of the slow phase eye velocity higher than 15°/s). We defined two types of seniors: one senior group having a normal feeling of vertigo and one senior ‘neglect’ group who did not feel any sensation of rotation from horizontal canal inputs. The comparison of these two age-matched groups showed no difference in horizontal canal function, or otolithic function. The majority of the ‘neglect’ seniors with an absence of perception exhibited falls or a decreased score in conditions 5 and 6 during the Equitest. Moreover, their DHI scores were higher, showing the handicap induced by postural instability in these seniors. In conclusion, postural instability and falls in seniors may result from central vestibular impairment (inadequate central processing). A prospective study is needed to determine whether the increase perceptual threshold of rotation could be a good predictor of fall risk in seniors

El uso de la Realidad Virtual dentro del campo de la Rehabilitaci on Motora en pacientes con Da~no Cerebral Adquirido (DCA) es un hecho cient camente contrastado en los ultimos a~nos. Los prometedores y satisfactorios resultados que se est an obteniendo en esta l nea de investigaci on (tanto a nivel cognitivo, como a nivel motor), en conjunci on con los procesos terap euticos tradicionales, proporcionan el auge de un nuevo hito dentro de la rehabilitaci on tradicional conocido como Virtual Motor Rehabilitation cuyo acr onimo es (VMR), describi endolo como Rehabilitaci on Virtual Motora (RVM). Hoy en d a, el Da~no Cerebral Adquirido es uno de los principales problemas de discapacidad y muerte en el mundo, donde las metodolog as propuestas dentro del campo de la rehabilitaci on tradicional, proporcionan resultados prometedores y esperanzadores. No obstante, este tipo de terapias presentan inconvenientes como son la falta de motivaci on del paciente, que lleva a una limitada adherencia al tratamiento, o las limitaciones de tiempo, espacio o coste que surgen en el proceso rehabilitador. Tradicionalmente, los principales experimentos realizados dentro del campo de la Rehabilitaci on Motora, se han realizado en pacientes DCA post-agudos y agudos, con escasas publicaciones basadas en el proceso rehabilitador motor de pacientes DCA cr onicos. En la presente tesis se han desarrollado sistemas de Rehabilitaci on Virtual para que, gracias al uso de dispositivos de bajo coste y las aportaciones obtenidas por los especialistas cl nicos, se haya validado la hip otesis: Mediante t ecnicas de rehabilitaci on virtual es posible obtener en pacientes cr onicos una recuperaci on del equilibrio estad sticamente signi- cativa, y similar a la que es posible obtener en pacientes agudos. Los experimentos realizados en el proceso rehabilitador, junto con las validaciones cl nicas realizadas en el Hospital Valencia al Mar, y el Instituto Valenciano de la Discapacidad, han servido para obtener unos resultados contrastables y satisfactorios, que corroboran la hip otesis de trabajo planteada.
Albiol Pérez, S. (2014). Rehabilitación Virtual Motora: una Evaluación al tratamiento de pacientes con Daño Cerebral Adquirido [Tesis doctoral no publicada]. Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/38450
TESIS

Background: Concussion assessments rely on a multifaceted approach where evaluation of balance and postural control plays an important role. Following a concussion, 67% of individuals report dizziness as a persistent symptom and 30% experience balance impairments. Studies incorporating the common Balance Error Scoring System (BESS) tool suggest that these impairments return to pre-injury baselines within ten days of incident. In contrast, however, studies incorporating more advanced posturography methods observe significant differences in balance up to one year following injury. While the BESS is consistently associated with low sensitivity and poor reliability scores, advanced posturography systems using force plates are not practical or accessible in most recreational sports environments. Recently, the Wii Balance Board (WBB) has been identified as a potential force plate proxy. Research confirms that the WBB is both valid and reliable in collecting center of pressure data. Thus, the WBB may be useful for investigating post-concussion balance deficits. Objective: The purpose of this study was to investigate the potential utility of a customized WBB program to assess postural balance in an athletic population. The study aimed to assess change in postural balance using the clinical BESS and WBB assessment tools to evaluate balance at fixed intervals during a regular athletic season and following concussion. Design: Prospective partial cohort. Methods: Balance was assessed at baseline, mid-, and post-season. Individuals who sustained a concussion during the study period were further assessed weekly for four weeks post-injury. Results: No significant differences were observed in raw BESS scores across regular season or post-concussion time points. In contrast, significant differences in several WBB outcome measures were observed. In the single stance condition, COPML worsened by 24% and COPT worsened by 9% between baseline and post-season time points (p=.002 and p=.007). In contrast, participants improved by 14% on a timed dynamic task (p=.003) between baseline and post-season time points. Following concussion, only the WBB dynamic outcome measures were found to be statistically significant. A positive trend was observed post-concussion, suggesting that a learning effect exists with the dynamic WBB program. Conclusion: Study results emphasize the importance of considering the progression of athletic season when interpreting baseline and post-concussion balance measurements. Study results support the use of a quantitative balance assessment, such as with a WBB, to improve measurement of static and dynamic postural balance.
Graduate
0566
hilarymcullen@gmail.com

碩士
臺中技術學院
多媒體設計系碩士班
98
Wii balanced board catch center-of-gravity position by using pressure sensors. It can operate the device without manual and contact. It will have a deep potentiality at game, guide and auxiliary teaching aid. Now starry sky teaching is just explain in class at school, and require students practice astrolabe after class at night. Students have to rotate plate to find the constellations and moon. It really needs a convenient device to starry sky teaching. This research develops a starry sky teaching aids, user stands on balanced board and change his (her) center-of-gravity position to control the view of starry sky. It can be more intuitive to astrolabe, and deepen the learning of direction and angle of elevation. This aids use Wii balanced board to be the main control Interface, it provides such as move the view of starry sky and change angle of elevation to user in starry sky. This research designs action coding with user participation. At teaching aids of view, it follows the curriculum, lets students learning course and enables to complete mission. This research finishes prototype of system by iterative development process, and have a conclusion by analyzing user''s behavior of operating and interview of teacher.

The thesis evaluates the effect of four-week home therapy using stabilometric platform Nintendo Wii Balance Board and tablet with integrated software HomeBalance in patients with brain injury. Software HomeBalance has been developed for the treatment of balance disorders and cognitive function. Manipulating the platform and the tablet may also develop grip and handling abilities of hand, both will be evaluated in this work as well. The theoretical part describes new trends in rehabilitation of cognitive-motor interference, dual-task therapy and therapy using technological equipments. Methods: A total of 9 subjects underwent four weeks of therapy using a therapeutic set HomeBalance. The control group of 12 subjects received therapy without any technological equipment. Patients participated in the initial examination, home therapy and final examination. As an evaluation of the therapy Mini-BESTest, Timed Up and Go test, Montreal cognitive assessment, 9- hole peg test, and also two games from HomeBalance software and questionnaire assessing satisfaction with therapy have been used. Results: After treatment the whole group improved in only two tests evaluated: in Mini- BESTest and the time of diagnostic scene in HomeBalance software. The research group had statistically better results in both tests...

Fall-related injuries in adults over the age of 65 pose an important public health issue especially with an increasing number of older adults living in retirement homes and nursing homes. Safety floors have been developed as an intervention to reduce the risk of these injuries. However, their effects on balance control reactions had never been tested during certain activities of daily living in retirement home dwellers. This research investigated how balance reactions are affected by the mechanical properties of safety flooring in older adults. The safety flooring showed minimal impact on the balance reactions while retaining force attenuation properties. There were two studies as part of this thesis. The purpose of the first study was to determine whether the Nintendo Wii Balance Board (WBB) can be used as an appropriate substitution for a force plate when measuring balance reactions during common tests used to assess balance in older adults. Specifically, I characterized the technical specifications of the WBB and compared them to those of the force plate, showing that the two devices yielded similar responses during balance measures of quiet stance. The second study investigated the effect of two traditional floors and three safety flooring systems on balance control mechanisms (based on changes in underfoot centre of pressure) during sit-to-stand and quiet stance tasks in retirement home-dwellers. The results of this study provided evidence supporting the potential for safety floors to reduce fall-related injury risk without impairing balance and mobility of users. Additional research may want to assess WBB performance during dynamic tasks involving shear forces. The results from this study supports prospective clinical investigations of pilot installations of safety flooring in retirement and nursing home settings to evaluate their real life effects on fall related injuries.

碩士
國立東華大學
特殊教育學系
101
This study was carried out according to an A-B-A-B design. Against a special education schooloverweight students by Nintendo Wii balance board combined with Shih Ching-Hsiang Professor cursor the automatic positioning technology and game software. Observing his jumping times as well as the overall activity’s increased situation. Single-subject experiment is used as the research method in the study, and the study was performed according to an A-B-A-B design. The study is divided into four phases, including: baseline phase(A1), first intervention phases (B1), withdrawal and reversal phases(A2), and second intervention phases(B2). At the beginning, the average frequency of Student A’s to complete a jump action was 2.6 times in A1 phase. During the first intervention phase (B1), the mean increased to 22.9 times jump. This mean time dropped to 3.8 during the withdrawal and reversal phases (A2) (second baseline phase) and eventually increased to 25.0 times during the second intervention phase (B2). Likewise, similar results have shown on the average jump frequencies on Student B’s test. The differences between the baseline jump frequencies and the intervention jump frequencies were significant (p＜.01) based on the Kolmogorov-Smirnov test. The results have shown that both participants significantly increased their target response (performing jump activity) by activating the control system to produce their preferred environmental stimulation during the intervention phases. Keywords:?Overweight, Mental Retardation, Computer Cursor Automatically Positioning Technology, Jump, Wii Balance Board.

碩士
國立東華大學
特殊教育學系
100
Jump is a simple action that is not restricted by place, equipment, and weather condition. The latest researches have adopted software technology and turning the Nintendo Wii Balance Board into a high performance change of standing posture detector. This study extended the function of Wii Balance Board to assess whether two students with intellectual disability would be able to jump actively with Nintendo Wii Balance Boards by following simple instructions and controlling their favorite environmental stimulation. Single-subject experiment is used as the research method in the study, and the study was performed according to an A-B-A-B design. The study is divided into four phases, including: baseline phase (A1), first intervention phases (B1), withdrawal and reversal phases (A2), and second intervention phases (B2). At the beginning, the average frequency of Student A’s to complete a jump action was 0 in A1 phase. During the first intervention phase (B1), the mean increased to 10.7 times jump. This mean time dropped to 4.67 during the withdrawal and reversal phases (A2) (second baseline phase) and eventually increased to 14.05 times during the second intervention phase (B2). Likewise, similar results have shown on the average jump frequencies on Student B’s test. The differences between the baseline jump frequencies and the intervention jump frequencies were significant (p<.01) based on the Kolmogorov–Smirnov test. The results have shown that both participants significantly increased their target response (performing jump activity) by activating the control system to produce their preferred environmental stimulation during the intervention phases.

碩士
國立東華大學
特殊教育學系
99
The latest researches have adopted software technology turning the Nintendo Wii Balance Board into a high performance standing location detector. This study extended Wii Balance Board functionality to assess whether two overweight people with mental retardation would be able to actively perform designated physical activities according to simple instructions by controlling their favorite environmental stimulation using Nintendo Wii Balance Boards. This study was carried out according to an A-B-A-B design. Data showed that both participants significantly increased their target response (performing a designated physical activity) by activating the control system to produce their preferred environmental stimulation during the intervention phases.

碩士
國立東華大學
特殊教育學系
99
The latest researches have adopted software technology turning the Nintendo Wii Balance Board into a high performance standing location detector. This study extended Wii Balance Board functionality to assess whether four students with Intellectual and Developmental Disabilities would be able to actively perform designated physical activities according to simple instructions by controlling their favorite environmental stimulation using Nintendo Wii Balance Boards through cooperative learning. This study was carried out according to a Single Subject A–B–A–B design. The study consisted of four phases, including: (1) baseline phase (A1), (2) the first time intervention phase (B1), (3) withdrawal and inverted back phase (A2), (4) the second intervention phase (B2). Two groups met the recruitment criteria of this study. The final data showed that both groups significantly increased their target response (performing a designated physical activity) by activating the control system to produce their preferred environmental stimulation during the intervention phases.