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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
311

O estresse precoce como um dos determinantes do uso abusivo de substâncias psicoativas: revisão integrativa / The Early Life Stress as a determinant of the abusive use of psicoactive substances: An integrative review

Gimenez, Larissa Bessani Hidalgo 12 June 2015 (has links)
Trata-se de uma revisão integrativa da literatura com o objetivo de identificar, sistematizar e analisar as evidências científicas que corroborem que ter sofrido Estresse Precoce, mensurado pelo instrumento Childhood Trauma Questionnaire (CTQ), é um fator determinante no uso e abuso de substâncias psicoativas na adolescência e vida adulta. A busca foi realizada em agosto de 2014 nas bases de dados: PubMed, Web of Science, Literatura Latino-Americana e do Caribe em Ciências da Saúde (LILACS) e Psycinfo, e utilizou-se o limite dos estudos indexados nos últimos 10 anos. Para as buscas nas bases de dados eletrônicas foram utilizadas combinações entre descritores controlados e palavras chaves relacionadas ao uso de substâncias psicoativas, estresse precoce e CTQ adaptadas para cada base de dados, as quais resultaram em 1114 estudos. Com a utilização dos filtros de idiomas Inglês, Espanhol e Português, somente artigos originais e publicações a partir do ano de 2003 até 18 de Agosto de 2014 o número de referências totais foram de 439. Após retirar os artigos duplicados em mais de uma base de dados, o número total de referências elegíveis para este estudo foi de 359. Após leitura de títulos e resumos foram selecionados para leitura na íntegra 157 estudos. Após leitura na íntegra foram excluídos aqueles textos que não respondiam a questão de pesquisa, sendo eleitos para esta revisão 08 artigos. Para extração dos dados foi utilizado um instrumento validado (URSI). A análise da descrição dos estudos foi realizada com base no instrumento STROBE, metodologia e delineamento das pesquisas foram analisadas com assessoria estatística. A análise dos dados foi descritiva e dividida em subcategorias: Estresse Precoce e Uso de Substâncias Psicoativas na Adolescência; Estresse Precoce e a Diferença Entre os Gêneros; Estresse Precoce e a Relação com Estresse e Depressão na Vida Adulta; Estresse Precoce e as Estratégias de Enfrentamento (Coping) na Vida Adulta; Estresse Precoce e o Álcool: a droga mais utilizada e porta de entrada para outras substâncias psicoativas. A partir dos estudos incluídos nessa revisão, foi possível identificar fatores que evidenciam que ter sofrido Estresse Precoce tem como um desfecho o uso abusivo de álcool e outras substâncias psicoativas na adolescência e vida adulta, em combinação com outros fatores ambientais e genéticos que influenciam o início do uso e posterior abuso das mesmas / This is an integrative literature review in order to identify, classify and analyze the scientific evidence supporting that have suffered Early Life Stress, measured by the Childhood Trauma Questionnaire (CTQ), is a determining factor in the use and abuse of psychoactive substances in adolescence and adulthood. The search was conducted in August 2014 in the databases: PubMed, Web of Science, Literatura Latino-Americana e do Caribe em Ciências da Saúde (LILACS) and Psycinfo, and used the limit of the indexed studies in the last 10 years. For searches of electronic databases were used combinations of controlled descriptors and keywords related to substance abuse, early life stress and CTQ, adapted to each database, resulting in 1114 studies. With the use of the filters: English, Spanish and Portuguese language, only original articles and publications from the year 2003 until August 18, 2014, the total number of references were 439. After removing duplicate items in more than one database, the total number of references eligible for this study was 359. After reading titles and abstracts, were selected for full reading 157 studies. In the full texts, were excluded those who did not respond to the research question, being elected to this review 08 articles. For data extraction was used a validated instrument (URSI). The analysis of the description of the studies was based on the STROBE instrument. The methodology and design of the researches were analyzed with statistical advice. Data analysis was descriptive and divided into subcategories: Early Life Stress and Psychoactive Substance Use in Adolescence; Early Life Stress and the Difference Between the Genders; Early Life Stress and the Relationship with Stress and Depression in Adulthood; Early Life Stress and Coping Strategies in Adulthood; Early Life Stress and Alcohol: the most widely used drug and gateway to other psychoactive substances. From the studies included in this review, it was possible to identify factors that Early Life Stress is an outcome of the alcohol and other psychoactive abuse in adolescence and adulthood, in combination with other environmental and genetic factors, that influence the beginning of use and later abuse of them
312

Estudo da estimulação elétrica nervosa transcutânea (TENS) nível sensório para efeito de analgesia em pacientes com osteoartrose de joelho / Study of transcutaneous electrical nerve stimulation (TENS) for the sensory effect of analgesia in patients with knee osteoarthritis

Morgan, Charles Ricardo 13 December 2010 (has links)
INTRODUÇÃO: A osteoartrose de joelho (OAJ) é uma das patologias que mais afetam o aparelho locomotor e interferem de forma considerável nas atividades da vida diária, acometendo os indivíduos em faixa etária variável e em diversos graus e níveis de dor articular. As propostas terapêuticas são bastante diversificadas para a osteoartrose (OA), a terapia física, a TENS está para colaborar no tratamento dos pacientes com osteoartrose de joelho. OBJETIVOS: Devido à importância da articulação do joelho nas atividades locomotoras e sua relação com as atividades da vida diária. Os pacientes com osteoartrose de joelho sofrem não somente pelo problema localizado, existe uma alteração funcional global que pode levar a processos dolorosos em outras articulações. Para uma eficaz orientação e avaliação do paciente primeiro é necessário que este faça a descrição clara de sua dor para que o profissional perceba como que esse estímulo doloroso prejudica sua vida. O objetivo do presente estudo foi avaliar o efeito da estimulação elétrica nervosa transcutânea (sigla em inglês TENS) nível sensório para tratamento de dor em pacientes com diagnóstico de osteoartrose de joelho, utilizando escalas de avaliação de dor, escala de avaliação funcional. MÉTODOS: Foram estudados 10 pacientes com diagnóstico de osteoartrose de joelho, utilizando uma modalidade fisioterapêutica, a eletroterapia, especificamente a (TENS), com parâmetros de 80 Hz e 140s, com um total de 10 sessões, 30 minutos para cada sessão, o período total de tratamento compreendeu 4 semanas, nesse total de 10 sessões, cada paciente foi entrevistado com um questionário na 1ª sessão, na 5ª e na 10ª sessão. Os formulários utilizados foram Questionário da Dor McGill Melzack, escala Analógica visual da dor, escala numérica com expressão facial de sofrimento, escala de atividades da vida diária da knee Outcome Survey - RESULTADOS: O resultado com a TENS nível sensório para efeito de analgesia mostra que as diferenças foram estatisticamente significativas (p<0,05) para escala Analógica visual da dor e o Questionário da Dor McGill, em alguns itens da escala de atividades da vida diária da knee Outcome Survey houve significância estatística. CONCLUSÃO: Nossos resultados sugerem que a TENS nível sensório reduz a dor e melhora a funcionalidade do joelho em alguns pontos da escala de atividades da vida diária em pacientes com OAJ / INTRODUCTION: Knee osteoarthritis (KOA) is one of the diseases that most affect the locomotor system and interfere significantly in activities of daily life, affecting individuals at varying ages and in different degrees and levels of joint pain. The proposals are quite diverse therapies for osteoarthritis (OA), physical therapy, TENS is to collaborate in the treatment of patients with osteoarthritis of the knee. OBJECTIVES: Because of the importance of the knee joint in locomotor activity and its relation to the activities of daily living. Patients with osteoarthritis of the knee not only suffer the problem located, there is a change in overall functional processes that can lead to pain in other joints. To provide efficient guidance and evaluation of the patient first must make this clear description of their pain for the professional to realize how painful stimulus that affect their lives. The aim of this study was to evaluate the effect of transcutaneous electrical nerve stimulation (TENS acronym in English) to the sensory processing of pain in patients with osteoarthritis of the knee, using rating scales of pain, functional scale. METHODS: We studied 10 patients with osteoarthritis of the knee, using a modality physiotherapy, electrotherapy, specifically (TENS), with parameters of 80 Hz and 140s, with a total of 10 sessions, 30 minutes for each session, the period Total treatment included 4 weeks in total of 10 sessions, each patient was interviewed with a questionnaire in the first session, on the 5th and 10th session. The forms used were the McGill Pain Questionnaire - Melzack, visual analogue pain scale, numerical scale with facial expression of pain, range of activities of daily living of the Knee Outcome Survey - RESULTS: The result with TENS for the effect of sensory analgesia shows that the differences were statistically significant (p <0.05) for visual analogue pain scale and McGill Pain Questionnaire, in some items of the scale of activities of daily living knee Outcome Survey of statistical significance. CONCLUSION: Our results suggest that sensory TENS reduces pain and improves knee function in some points of the scale of activities of daily living in patients with KOA
313

The interaction of achievement goal orientations, self-regulated learning and learning environment in high school science classrooms

Iverach, Michael Robert January 2007 (has links)
Despite the substantial amount of education research on “teaching for understanding” and “learning for understanding” processes that has occurred in the fields of achievement goals, constructivist-based pedagogy, motivational beliefs and self-regulated learning there is little research that considers in unison the pillar constructs of these fields. Three studies comprised the present research which was designed to address the proposal that important social- and personal-based constructs associated with achievement goals, constructivist-based pedagogy, motivational beliefs, and self-regulated learning act in an interdisciplinary fashion to influence learning in the high school science classroom. All the large-scale quantitative studies presented a single-level structural equation model that was applicable to the general high school science student, controlling for the variance associated with age, gender, and student type (regular or selective high school student). Results from the two large-scale trait-level correlational studies of Study 1 (n = 655) and Study 2 (n = 617) using the Achievement Goals Questionnaire (Elliot & Church, 1997), Constructivist Learning Environment Survey (Taylor, Fraser, & Fisher, 1997) and the Motivated Strategies for Learning Questionnaire (Pintrich, Smith, Garcia, & McKeachie, 1991) as the main quantitative instruments found support for the hypothesis that a perceived emphasis on the constructivist-based pedagogical dimensions of personal relevance and student negotiation in science classrooms promotes the adoption of mastery-approach and intrinsic value. These analyses also showed the importance of self-efficacy in promoting mastery-approach, performance-approach and the use of regulatory strategies, and that test anxiety had positive associations with mastery-avoidance and performance-avoidance goals. / Study 3 comprised of two mini-studies that investigated the associations of competence perceptions, achievement goals and self-regulated learning in two science classroom learning contexts: teacher-led discussion (n = 451) and group work (n = 476). Using specifically developed context-level questionnaires, the results of these studies affirmed current theories concerning the interactions of self-efficacy, achievement goals, self-regulated learning (regulatory strategy use) and maladaptive strategy use. Students interviewed in Study 3 mostly reported the adoption of their achievement goals depended upon personal reasons that were commensurate with current achievement goal theory (Elliot, 1999) rather than specific classroom practices. The present research was also significant in that it tested the empirical stature of two frameworks by which social/cognitive research affiliated with learning environments, achievement goals and self-regulated learning may be conducted. Firstly, the results of the construct validity measures generated across Studies 1, 2 and 3 found support for the existence of the hypothesised 2 X 2 achievement goals framework (Elliot, 1999; Elliot & McGregor, 2001; Pintrich, 2000a). Secondly, the research introduced the tenets of a “context” hypothesis and found support for this perspective throughout the context-level studies. Adjunct multilevel multiple regressions were used in all the quantitative studies to examine the impact of subpopulation variables (age, gender, regular or selective high school student) and multiple goal interactions upon response variables, and to assess the variance attributed to the response variables at the class-level. Implications for the research disciplines studied are presented in terms of teaching practice, theory, future research and research methods.
314

The relationship between union service delivery, motivation and job satisfaction amongst unionised workers in a media organisation in the Western Cape.

Charles, Warren Paul. January 2008 (has links)
<p>The purpose of this research is to determine employee satisfaction towards union service delivery and the effect it might have on their motivation. For the purposes of the research, the term customer applies to all union members being serviced by the union and enjoying benefits of negotiations at a centralised or de-centralised level. More generally, trade unions and collective bargaining are seen to enhance the dignity of workers and their control of their working lives, hence the important role trade unions play within the workplace. Service deliveries from a trade union to its members are an important element of employee behaviour and motivation. The research will aim to&nbsp / measure union member&rsquo / s (customer) satisfaction of the service they receive from their union and the impact it possibly has on otivation. The hypothesis of the research is that if workers are satisfied by the service they receive from their trade union their motivational levels will also be high. Alternatively, if workers are dissatisfied by the service they receive from their trade union, their motivation will be low. A Biographical questionnaire, the Organizational Motivation Questionnaire (OMQ) and the Service Quality Questionnaire was administered to respondents to elicit responses on how the aspects of union service delivery impacts on their motivation in the workplace.&nbsp / The results emanating from the current study indicate that there are statistically significant relationships between work content, payment, promotion, recognition, working conditions, benefits, personal, leadership/ supervision, general and work motivation and satisfaction in the technical department of a media organisation in the Western Cape. Furthermore, results show the nine independent variables (work content, payment, promotion, recognition, working conditions, benefits, personal, leadership/ supervision and general) significantly explained the variance in work motivation and service-delivery. The study also shows a statistically significant difference in motivation and job-satisfaction based on the biographical variables (gender, home language, marital status, age, race, job classification, education, qualifications, job grade and tenure). Multiple regression analysis revealed these variables significant explained the variance in job satisfaction and motivation. The results reveal some interesting insights into the relationship between union service delivery, motivation and job satisfaction amongst unionised workers in a media organisation in the Western Cape. Recommendations are made with respect to the management of this focal area of research.</p>
315

IL COPING DIADICO NELLA COPPIA E TRA LE GENERAZIONI / DYADIC COPING WITHIN THE COUPLE AND ACROSS GENERATIONS

DONATO, SILVIA 12 February 2009 (has links)
Il presente lavoro di ricerca si focalizza sul coping diadico, ovvero sulle modalità con cui partner affrontano come coppia, secondo la prospettiva di Guy Bodenmann (1997, 2000, 2005), le situazioni stressanti quotidiane. Primo obiettivo del presente lavoro di tesi è stato analizzare in un campione italiano (N = 778 partecipanti; cfr. Studio 1) la struttura fattoriale di uno strumento self-report messo a punto da Bodenmann (“Dyadic Coping Questionnaire”, Bodenmann, 1997, 2000) allo scopo di misurare la tendenza dei partner a mettere in atto diverse modalità di coping diadico. I risultati del primo studio confermano la struttura multifattoriale della scala, in linea con la teorizzazione di Bodenmann. In particolare si evince una più fine articolazione delle risposte di coping diadico positivo rispetto a quelle di coping diadico negativo. Nonostante l’importanza del coping per il benessere dei partner e della relazione (Bodenmann, Pihet, & Kaiser, 2006), poco si conosce dei possibili precursori di tale competenza relazionale. Secondo obiettivo del presente lavoro è stato dunque esaminare due delle possibili fonti dell’acquisizione del coping diadico da parte dei partner analizzando, in un campione composto da coppie in procinto di sposarsi e dai loro genitori (N = 764 partecipanti) se e quanto i partner fossero simili 1) ai loro rispettivi genitori e 2) tra loro per ciò che concerne la tendenza ad usare il coping diadico. Tali somiglianze sono inoltre state confrontate tra loro alla luce del processo di riallineamento caratteristico della fase della relazione che la coppia giovane sta attraversando (cfr. Studio 2). Due tipi di somiglianza sono stati presi in considerazione: la somiglianza unica e la somiglianza stereotipica, allo scopo di tenere in considerazione come il comune background culturale dei partecipanti possa influire sulle somiglianze esaminate. Somiglianza unica e stereotipica sono state qui considerate entrambe come portatrici di significato e sono state dunque esaminate parallelamente. Lo Studio 3 infine aveva l’ obiettivo di approfondire le somiglianze tra genitori e figli emerse nello studio precedente alla luce del genere del figlio, dal genere del genitore, e dalla valutazione da parte dei figli dei modelli di vita rappresentati dai loro genitori. I risultati hanno mostrato come sia le somiglianze tra figli e genitori sia tra i partner nella tendenza al coping diadico siano significative e come le somiglianze tra genitori e figli varino in funzione della dimensione di coping diadico considerata, del genere del figlio e del tipo di modello di coping diadico che i genitori rappresentano per i propri figli. Quanto emerso è stato inoltre discusso alla luce delle piste future di ricerca e implicazioni per l’intervento. / The present work is focused on dyadic coping, that is the way partners manage as a couple the stress they encounter in their everyday life (Bodenmann, 1997, 2000, 2005). The first objective of the present research was to examine in a sample of Italian couples (N = 778 participants) the factorial structure of a self-report instrument designed to measure partners’ dyadic coping tendency (Dyadic coping Questionnaire by Bodenmman, 1997, 2000). Findings from the first study of the present work confirmed the multidimensional nature of the scale, in line with Bodenmnann’s theory. In particular, it emerged a more detailed definition of positive dyadic coping responses, as compared to negative ones. Despite the importance of dyadic coping for the well-being of the relationship as well as of the partners themselves, little is known on how this competence originates. The second objective of the present research was then to explore two possible sources of dyadic coping acquisition by examining whether and how young adults prior to marriage were similar to 1) their parents and 2) their partners in their dyadic coping tendency (N = 764 participants). Moreover, similarities with parents and with partners were compared in light of the specific stage of the relationship partners were living (cfr. Study 2). Similarity was computed adopting an idiographic approach via intraclass correlations and stereotype adjustment was performed in order to take into account the impact of partners and parents shared cultural background on similarity. For the purpose of the present work both stereotypical and unique similarities were considered meaningful and then examined simultaneously. Study 3 was aimed at further exploring the parent-child similarities emerged from study 2 by assessing whether and how parent-child similarity in dyadic coping differed as a function of parents and children’s gender and whether they were associated with children’s perceptions of the kind of models their parents represented for their lives. Results highlight that both parent-child and partners’ similarities were significant and differently modulated as a function of the different dimensions of dyadic coping considered, children’s gender as well as the kind of dyadic coping models parents represented for their children. Future paths of research and implications for intervention were discussed.
316

Étude transversale sur l’asepsie des articles transférés entre la clinique et le laboratoire dentaire et de l’instrumentation de laboratoire

Bezerianos, Joanna 09 1900 (has links)
Les mesures de contrôle de la contamination croisée sont principalement concentrées dans la salle opératoire dentaire alors que les articles transférés entre la clinique et le laboratoire dentaire et les instruments de laboratoire ont reçu peu d’attention. Cette étude vise à documenter l’application des mesures d’asepsie sur ces articles par les professionnels du domaine dentaire ainsi que leurs perceptions entourant ces mesures. Un questionnaire autoadministré et anonyme a été envoyé à un échantillon aléatoire des dentistes, denturologistes et directeurs de laboratoire dentaire qui étaient inscrits aux listes des ordres professionnels en juin 2008 dans la province de Québec. Des 1100 questionnaires envoyés, 376 ont été retournés remplis. Presque trois quarts (72,1 %) des répondants affirment faire l’asepsie des instruments de laboratoire et 74,9 %, la désinfection des articles transférés mais avec des pourcentages variables selon le groupe d’articles (empreintes, prothèses, etc.). Seulement 9,1 % de professionnels identifient de façon générale les articles désinfectés avant l’envoi. Plus de la moitié des professionnels (51,4 %) trouvent qu’ils n’ont pas assez d’information sur l’asepsie des articles transférés et 62,4 %, qu’elle est difficile à appliquer. Cette étude est la première réalisée auprès des trois groupes de professionnels et la première à étudier leurs perceptions entourant l’asepsie des articles transférés et de l’instrumentation de laboratoire. Nous avons démontré que l’application des mesures d’asepsie à ces articles par les professionnels du domaine dentaire n’est pas toujours conforme aux normes proposées et qu’il existe un besoin de renforcer leur application, surtout en ce qui a trait aux articles transférés. / Infection control practices have been mainly concentrated in the dental operatory whereas the articles transferred between the dental clinic and the dental laboratory as well as laboratory instruments have received less attention. This study attempts to document the practices of dental care professional implicated in the fabrication of dental prosthesis as to the asepsis of these items as well as their perceptions towards it. In June 2008 an auto-administrated and anonymous questionnaire was sent to a random sample of dentists, denturologists and dental laboratory directors licensed to practice in the province of Quebec (Canada). From the 1,100 questionnaires sent, 376 were returned filled-in. Almost two thirds of responders (72.1%) claim to disinfect or sterilize laboratory instruments and 74.9% to disinfect transferred articles, with percentages varying according to the group of articles (impressions, prosthesis, etc.). However, only 9.1% regularly identify disinfected work. More than half of the responders (51.4%) think it is difficult to apply a form of asepsis on transferred articles and 62.4% believe there is a lack of information towards it. This study is the first to have been addressed simultaneously to the three groups of professionals and the first to question them on their perceptions. It demonstrated that the application of asepsis measures to transferred articles and laboratory instruments by dental care professionals is not always complying with existing recommendations. There is a need to reinforce their application, especially of asepsis measures on transferred articles.
317

The relationship between union service delivery, motivation and job satisfaction amongst unionised workers in a media organisation in the Western Cape.

Charles, Warren Paul. January 2008 (has links)
<p>The purpose of this research is to determine employee satisfaction towards union service delivery and the effect it might have on their motivation. For the purposes of the research, the term customer applies to all union members being serviced by the union and enjoying benefits of negotiations at a centralised or de-centralised level. More generally, trade unions and collective bargaining are seen to enhance the dignity of workers and their control of their working lives, hence the important role trade unions play within the workplace. Service deliveries from a trade union to its members are an important element of employee behaviour and motivation. The research will aim to&nbsp / measure union member&rsquo / s (customer) satisfaction of the service they receive from their union and the impact it possibly has on otivation. The hypothesis of the research is that if workers are satisfied by the service they receive from their trade union their motivational levels will also be high. Alternatively, if workers are dissatisfied by the service they receive from their trade union, their motivation will be low. A Biographical questionnaire, the Organizational Motivation Questionnaire (OMQ) and the Service Quality Questionnaire was administered to respondents to elicit responses on how the aspects of union service delivery impacts on their motivation in the workplace.&nbsp / The results emanating from the current study indicate that there are statistically significant relationships between work content, payment, promotion, recognition, working conditions, benefits, personal, leadership/ supervision, general and work motivation and satisfaction in the technical department of a media organisation in the Western Cape. Furthermore, results show the nine independent variables (work content, payment, promotion, recognition, working conditions, benefits, personal, leadership/ supervision and general) significantly explained the variance in work motivation and service-delivery. The study also shows a statistically significant difference in motivation and job-satisfaction based on the biographical variables (gender, home language, marital status, age, race, job classification, education, qualifications, job grade and tenure). Multiple regression analysis revealed these variables significant explained the variance in job satisfaction and motivation. The results reveal some interesting insights into the relationship between union service delivery, motivation and job satisfaction amongst unionised workers in a media organisation in the Western Cape. Recommendations are made with respect to the management of this focal area of research.</p>
318

Étude des intrusions cognitives et des croyances dysfonctionnelles reliées au trouble obsessionnel-compulsif

Julien, Dominic January 2008 (has links)
Thèse numérisée par la Division de la gestion de documents et des archives de l'Université de Montréal
319

La qualité de vie durant la période gestationnelle : impact et prise en charge des nausées et des vomissements de la grossesse

Lacasse, Anaïs January 2008 (has links)
Thèse numérisée par la Division de la gestion de documents et des archives de l'Université de Montréal
320

Investigating the links between muscle strength, sun exposure, dietary vitamin D intake and the vitamin D status of ambulatory older adults in South East Queensland

Borradale, David January 2008 (has links)
Vitamin D deficiency and insufficiency are now seen as a contemporary health problem in Australia with possible widespread health effects not limited to bone health1. Despite this, the Vitamin D status (measured as serum 25-hydroxyvitamin D (25(OH)D)) of ambulatory adults has been overlooked in this country. Serum 25(OH)D status is especially important among this group as studies have shown a link between Vitamin D and fall risk in older adults2. Limited data also exists on the contributions of sun exposure via ultraviolet radiation and dietary intake to serum 25(OH)D status in this population. The aims of this project were to assess the serum 25(OH)D status of a group of older ambulatory adults in South East Queensland, to assess the association between their serum 25(OH)D status and functional measures as possible indicators of fall risk, obtain data on the sources of Vitamin D in this population and assess whether this intake was related to serum 25(OH)D status and describe sun protection and exposure behaviors in this group and investigate whether a relationship existed between these and serum 25(OH)D status. The collection of this data assists in addressing key gaps identified in the literature with regard to this population group and their Vitamin D status in Australia. A representative convenience sample of participants (N=47) over 55 years of age was recruited for this cross-sectional, exploratory study which was undertaken in December 2007 in south-east Queensland (Brisbane and Sunshine coast). Participants were required to complete a sun exposure questionnaire in addition to a Calcium and Vitamin D food frequency questionnaire. Timed up and go and handgrip dynamometry tests were used to examine functional capacity. Serum 25(OH)D status and blood measures of Calcium, Phosphorus and Albumin were determined through blood tests. The Mean and Median serum 25-Hydroxyvitamin D (25(OH)D) for all participants in this study was 85.8nmol/L (Standard Deviation 29.7nmol/L) and 81.0nmol/L (Range 22-158nmol/L), respectively. Analysis at the bivariate level revealed a statistically significant relationship between serum 25(OH)D status and location, with participants living on the Sunshine Coast having a mean serum 25(OH)D status 21.3nmol/L higher than participants living in Brisbane (p=0.014). While at the descriptive level there was an apparent trend towards higher outdoor exposure and increasing levels of serum 25(OH)D, no statistically significant associations between the sun measures of outdoor exposure, sun protection behaviors and phenotypic characteristics and serum 25(OH)D status were observed. Intake of both Calcium and Vitamin D was low in this sample with sixty-eight (68%) of participants not meeting the Estimated Average Requirements (EAR) for Calcium (Median=771.0mg; Range=218.0-2616.0mg), while eighty-seven (87%) did not meet the Adequate Intake for Vitamin D (Median=4.46ug; Range=0.13-30.0ug). This raises the question of how realistic meeting the new Adequate Intakes for Vitamin D is, when there is such a low level of Vitamin D fortification in this country. However, participants meeting the Adequate Intake (AI) for Vitamin D were observed to have a significantly higher serum 25(OH)D status compared to those not meeting the AI for Vitamin D (p=0.036), showing that meeting the AI for Vitamin D may play a significant role in determining Vitamin D status in this population. By stratifying our data by categories of outdoor exposure time, a trend was observed between increased importance of Vitamin D dietary intake as a possible determinant of serum 25(OH)D status in participants with lower outdoor exposures. While a trend towards higher Timed Up and Go scores in participants with higher 25(OH) D status was seen, this was only significant for females (p=0.014). Handgrip strength showed statistically significant association with serum 25(OH)D status. The high serum 25(OH)D status in our sample almost certainly explains the limited relationship between functional measures and serum 25(OH)D. However, the observation of an association between slower Time Up and Go speeds, and lower serum 25(OH)D levels, even with a small sample size, is significant as slower Timed Up and Go speeds have been associated with increased fall risk in older adults3. Multivariable regression analysis revealed Location as the only significant determinant of serum 25(OH)D status at p=0.014, with trends (p=>0.1) for higher serum 25(OH)D being shown for participants that met the AI for Vitamin D and rated themselves as having a higher health status. The results of this exploratory study show that 93.6% of participants had adequate 25(OH)D status-possibly due to measurement being taken in the summer season and the convenience nature of the sample. However, many participants do not meet their dietary Calcium and Vitamin D requirements, which may indicate inadequate intake of these nutrients in older Australians and a higher risk of osteoporosis. The relationship between serum 25(OH)D and functional measures in this population also requires further study, especially in older adults displaying Vitamin D insufficiency or deficiency.

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