Navegando por Palavras-chave "Acclimatization"
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- ItemAcesso aberto (Open Access)Aclimatização: estudo do reconhecimento de fala em usuários de próteses auditivas(Pró-Fono Produtos Especializados para Fonoaudiologia Ltda., 2006-12-01) Prates, Letícia Pimenta Costa Spyer [UNIFESP]; Iorio, Maria Cecilia Martinelli [UNIFESP]; Universidade Federal de São Paulo (UNIFESP); Universidade Federal de Minas Gerais Hospital das ClínicasBACKGROUND: acclimatization is the period that succeeds the fitting of hearing aids, when a progressive improvement of the hearing and speech recognition abilities is observed due to the new speech cues that are available to the hearing aid user. AIM: to verify acclimatization after the fitting of hearing aids through objective (speech tests) and subjective (Questionnaire) evaluations. METHOD: 16 hearing impaired individuals were evaluated on the first day of hearing aid fitting and were monthly reassessed for three months. In all three months the following speech tests were used: PISR - percentage index of speech recognition through monosyllabic words and SRT - speech recognition threshold through sentences, determining the speech/noise ratio (S/N). The International Outcome Inventory of Hearing Aid (IOI-HA) was also applied in the first and third months after the hearing aids were fitted. RESULTS: the comparison between the first day, first, second and third months after the hearing aids were fitted revealed a statistically significant improvement (p<0.001) between the results, not only for the PISR but also for the S/N ratio. No statistically significant difference was found for the results obtained through the questionnaire applied in the first and third months. CONCLUSION: the objective evaluation, using speech recognition tests, presents better results in the months following the hearing aids fitting indicating a progressive improvement in the speech abilities from the first month onwards. The subjective evaluation does not reveal an improvement when comparing the first and third moths after the hearing aids were fitted.
- ItemSomente MetadadadosConsumo de oxigênio em ratos a 20º C e 30º C(Universidade Federal de São Paulo (UNIFESP), 1975) Griggio, Mauro Antonio [UNIFESP]; Tarasantchi, Jacob [UNIFESP]
- ItemAcesso aberto (Open Access)Efeitos da exposição à altitude sobre os aspectos neuropsicológicos: uma revisão da literatura(Associação Brasileira de Psiquiatria - ABP, 2010-03-01) Lemos, Valdir de Aquino [UNIFESP]; Antunes, Hanna Karen Moreira [UNIFESP]; Santos, Ronaldo Vagner Thomatieli dos [UNIFESP]; Prado, Juliana Martuscelli da Silva; Tufik, Sergio [UNIFESP]; Mello, Marco Tulio de [UNIFESP]; Universidade Federal de São Paulo (UNIFESP); Centro de Estudos em Psicobiologia e Exercício; Conselho Nacional de Desenvolvimento Científico e TecnológicoOBJECTIVE: Discuss the effects of altitude exposure on neuropsychological functions. METHOD: We have conducted a literature review using as source indexed articles at Pubmed in the period from 1921 to 2008, using the following key words: cognition and hypoxia, hypoxia and neuropsychology, acute hypoxia, chronic hypoxia, and acclimatization and hypoxia, as well as specific books on the subject. DISCUSSION: Acute and chronic effects of Hypoxia can alter many of the neuropsychological functions in different altitudes due to physiological changes resulted by the oxygen (O2) partial decrease that can lead to neuropsychological alterations in individuals exposed to high altitudes. CONCLUSION: Individuals exposed to high altitudes must use an O2 supplementation and the practice of acclimatization, among other strategy ways that can be used in order to minimize the negative effects of hypoxia on neuropsychological aspects.
- ItemAcesso aberto (Open Access)Índice percentual de reconhecimento de sentenças no silêncio e no ruído: efeitos da aclimatização no indivíduo avaliado sem as próteses auditivas(CEFAC Saúde e Educação, 2010-10-01) Santos, Sinéia Neujahr Dos; Petry, Tiago; Costa, Maristela Julio [UNIFESP]; Universidade Federal de Santa Maria; Centro Universitário Feevale; Universidade Federal de São Paulo (UNIFESP)PURPOSE: to check the effect of acclimatization on sentence recognition in quiet environment and under noise, in new users of hearing aids, evaluated without their use, before and after the acclimatization period. METHODS: the study comprised 40 individuals, aged between 28 and 78year old with mild to moderate sensorineural hearing loss. They were starting the selection and adaptation process of hearing aids. The tests were conducted in three sessions, before the adaptation of hearing aids, fourteen days and three months later, respectively. they were applied to Portuguese Sentences Lists test (COSTA, 1997), in free field, in quiet environment and under noise, both in fixed 65 dB A intensity, in which we obtained the percentual indexes of sentences recognition in quiet environment (PISRQ) and under noise (PISRN). RESULTS: the mean values for PISRQ in the 1st, 2nd and 3rd sessions were, respectively, 65%; 72% e 83% dB A. The mean values of PISRN for the 1st, 2nd and 3rd sessions were 51%; 58% e 59% dB A, respectively. While comparing the results between sessions, there was a statistically significant difference for PISRQ between the 1st and 3rd e and between the 2nd and 3rd session, and for PISRN, between the 1st and 2nd e and between the 1st and 3rd session. CONCLUSION: the subjects improved their performance using hearing aids, even being evaluated without them, and this improvement may be related to the acclimatization effect.
- ItemAcesso aberto (Open Access)Influência do polimorfismo R577X do gene ACTN3 no processo de aclimatação à alta altitude(Universidade Federal de São Paulo (UNIFESP), 2019-03-28) Bottura, Ricardo Muller [UNIFESP]; Hipólide, Débora Cristina [UNIFESP]; http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4795688U9; http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4184974E4; Universidade Federal de São Paulo (UNIFESP)Introduction: Hypoxemia is the decrease in arterial blood saturation. This condition leads the organism to adjust the various metabolic processes in an attempt to establish better oxygenation to the tissues. During this process, called acclimatization, it is normal to present mood and cognition disturbances or to develop some symptoms that can lead to mountain sickness. However, not everyone has such symptoms or alterations and individuals from high altitude regions present genetic differences in relation to low altitude natives that can contribute to a better adaptation of the acute form. One of these differences is the greater proportion of type I muscle fibers, which may originate from the R577X polymorphism of the ACTN3 gene. Objective: The objective of this study was to compare the response of individuals with different ACTN3 genotypes at simulated altitude at 4500m on cognition, mood and the presence of symptoms of Acute Mountain Sickness (AMS). Methods: Twenty-three volunteers (RR = 7, RX = 8, XX = 8) spent four hours exposed to a simulated altitude of 4,500 m inside a normobaric hypoxia chamber, where the concentrations of lactate and glucose, SpO2, FC, reaction time, the mood state, and the symptoms of AMS. All analyzes were done immediately before entering the chamber and at each hour of exposure. Statistical analysis was performed using the IBM SPSS Statistics 21 software. Results: Our results point to an association between the symptoms of AMS and the presence of the R allele of the R577X polymorphism. This may be related to a greater dependence on glucose metabolism, since the RR and RX groups showed lower glycemia than the XX group after 4 hours of exposure at 4500m altitude. There was no difference between groups for Mood and Reaction Time. Conclusion: We conclude that individuals with at least one R allele of the R577X polymorphism are more susceptible to the effects of hypoxia during the acclimation process and may present the symptoms of AMS.