Nós da Condor Instruments temos nossos produtos como base em dezenas de pesquisas em todo o mundo, trazendo para todos uma experiência comprovada nas mais diversas áreas que contribui para geração de numerosas análises, diagnósticos e dados. 


Actigraphy-based evaluation of sleep quality and physical activity in individuals with spinal cord injury
Abstract: Sleep disturbances are frequently reported by individuals with spinal cord injury (SCI) and are associated both with poor quality of life and reduced ability to participate in rehabilitation and daily life activities.
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Avaliação da Qualidade do Sono na Perspectiva do Conforto para o Pós-Graduando em Enfermagem
Abstract: O sono é considerado fundamental para o ser humano, pois possui função restaurativa. Rupturas no ritmo circadiano afetam o desempenho cognitivo e representam fator de risco para diversas doenças crônicas. Este problema torna-se ainda mais frequente entre trabalhadores da área da saúde e estudantes universitários, devido a múltiplos fatores ambientais que podem influenciar diretamente seu comportamento de sono-vigília 
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Avaliação do padrão de sono dos estudantes de medicina da Escola Multicampi de Ciências Médicas do Rio Grande do Norte / Sleep pattern evaluation in medical students at Medical Sciences Multicampi School of Rio Grande do Norte
Abstract: Distúrbios do sono são comuns em estudantes de medicina e podem causar prejuízos na formação acadêmica. As demandas curriculares tendem a dessincronizar o ciclo sono-vigília e alterar a qualidade do sono, e por vezes obrigar que os estudantes optem entre manter a regularidade do padrão de sono ou atender às exigências acadêmicas. O presente trabalho avaliou o padrão de sono dos estudantes de medicina da Escola Multicampi de Ciências Médicas do Estado do Rio Grande do Norte, situada no município de Caicó-RN, cujo currículo adotado fundamenta-se na Aprendizagem Baseada em Problemas (Problem Based Learning – PBL).
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Biomechanical procedure to assess sleep restriction on motor control and learning
Abstract: The analysis of sleep quality during long periods and its impact on motor control and learning performance are crucial aspects for human health. The aim of this study is to analyze effects of chronic sleep restriction on motor performance. It is intended to establish motor control indicators in sleep quality analysis. A wearable actigraphy that records accelerometry, ambient light, and body temperature was used to monitor the sleep habits of 12 healthy subjects for two weeks before performing motor control and learning tests. 

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Baseline Pupil Diameter Is Not a Reliable Biomarker of Subjective Sleepiness

Abstract: Sleepiness is commonly seen as reflecting the basic physiological need to sleep and is associated with physiological and neurobiological changes. Subjective evaluations of sleepiness, however, are neither representative of cognitive and physical performances, nor of physiological sleepiness. Finding a simple, rapid, and objective marker of sleepiness is essential in order to prevent errors and accidents, but this has remained largely unsuccessful. The aim of this study was to determine whether the baseline pupil diameter is a physiological biomarker of sleepiness at all times of day and to isolate the regulatory components involved.
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Chronic Low Quality Sleep Impairs Postural Control in Healthy Adults

Abstract: The lack of sleep, both in quality and quantity, is an increasing problem in modern society, often related to workload and stress. A number of studies have addressed the effects of acute (total) sleep deprivation on postural control. However, up to date, the effects of chronic sleep deficits, either in quantity or quality, have not been analyzed.
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Ciclos de atividade/repouso e alimentação/jejum associados ao uso de equipamentos eletrônicos: aspectos comportamentais e padrões temporais

Abstract: A energia elétrica de uso doméstico no cenário mundial é um fenômeno recente que incorporou modulações temporais na expressão dos ritmos biológicos, como os hábitos alimentares e de sono. Após sua popularização, tecnologias eletrônicas foram criadas e incorporadas às nossas rotinas diárias. O acesso à iluminação elétrica promove uma maior flexibilidade na organização temporal das nossas atividades por facilitar o controle de extensão da fase de atividade para horas mais tardias da noite. Assim, essa situação pode constituir um desafio temporal ao organismo, gerado pelas oscilações das pistas temporais, adiantando ou atrasando a ocorrência de eventos rítmicos como a alimentação/jejum, atividade/repouso e metabolismo.
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Circadian Light Exposures of Shift Working Nurses
Abstract: Studies have linked adverse health outcomes to work during the body’s subjective night. Certain shift schedules result in light exposure profiles that may cause circadian disruption. Previous studies estimated average artificial illuminance to quantify light at night (LAN) at work which limits their validity and scope. However, daylight, shift length, commuting exposures and light during restricted sleep opportunities compete with LAN as causative agents, as do non-photic factors such as social disruption, activity and food intake during the subjective night. Investigations into the effects of light in shift work should be supported by 24-hour light exposure measurements, e.g. to establish dose-response relationships. The purpose of the study was to collect and suggest interpretations of 24-hour exposure data, and investigate both daytime and night-time workers’ light cycles in more detail.
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Circadian ontogeny through the lens of nonparametric variables of actigraphy
Abstract: Studies focusing on human rhythmicity show that human circadian rhythm suffers constant changes across lifespan. Changes in rest-activity patterns can be studied through nonparametric variables of actigraphy: L5 (an individual’s least active 5 h), M10 (an individual’s most active 10 h) and RA (relative amplitude of the rest-activity rhythm). The variable RA is the normalized difference between L5 and M10 – the higher the RA, the greater the difference between these two variables.
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Circadian rhythm abnormalities and autonomic dysfunction in patients with Chronic Fatigue Syndrome/Myalgic Encephalomyelitis

Abstract: Chronic Fatigue Syndrome/Myalgic Encephalomyelitis (CFS/ME) patients frequently show autonomic symptoms which may be associated with a hypothalamic dysfunction. This study aimed to explore circadian rhythm patterns in rest and activity and distal skin temperature (DST) and their association with self-reported outcome measures, in CFS/ME patients and healthy controls at two different times of year.
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Comparison between an African town and a neighbouring village shows delayed, but not decreased, sleep during the early stages of urbanisation

Abstract: The well-established negative health outcomes of sleep deprivation, and the suggestion that availability of electricity may enable later bed times without compensating sleep extension in the morning, have stimulated interest in studying communities whose sleep pattern may resemble a pre-industrial state. Here, we describe sleep and activity in two neighbouring communities, one urban (Milange) and one rural (Tengua), in a region of Mozambique where urbanisation is an ongoing process. The two communities differ in the amount and timing of daily activity and of light exposure, with later bedtimes (≈1 h) associated with more evening and less daytime light exposure seen in the town of Milange.
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Comparison of sleep parameters assessed by actigraphy of healthy young adults from a small town and a megalopolis in an emerging country
Abstract: The analysis of sleep quality and its impact on diurnal sleepiness is a crucial aspect of human health. Modern life in large cities compels people to spend less hours sleeping than they need. A wearable actigraphy that records accelerometry, light and body temperature was used to register the sleep habits of 54 healthy subjects for 14 days. From them, 28 participants resided in a town that could be regarded as a rural environment while the other subjects lived in the largest metropole of South America. The subjects filled three questionnaires to assess sleep quality (Pittsburgh Sleep Quality Index – PSQI), sleepiness (Epworth Sleepiness Scale – ESS) and chronotype (Morningness-Eveningness Questionnaire – MEQ-HO). 

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Comparison of sleep quality assessed by actigraphy and questionnaires to healthy subjects
Abstract: Sleep quality analysis is crucial for human health and it is related to duration, rhythm and quality. The goal of this study is to analyze objective assessment of the sleep-wake cycles with actigraphy, subjective questionnaires and their relationship with sleep quality indices. A wearable actigraph registered the sleep habits of 41 healthy subjects for 9 days. Afterwards, the subjects filled two questionnaires about sleep quality (Pittsburgh Sleep Quality Index) and sleepiness (Epworth Sleepiness Scale). The subjects were divided into two groups based on cut-off scores and the actigraphy parameters were compared between groups. Group 1 in ESS and PSQI categorization had less diurnal sleepiness and better sleep quality, respectively, than Group 2. Measurements of regularity (IS), fragmentation (IV), active phase amplitude (M10), rest amplitude (L5), and relative amplitude (RA) were compared between groups. Group 2 had higher L5 values. Parameter L5 (lowest of 5 consecutive hours of activity) was concluded to be relevant to identify the sleep conditions of the subjects.
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Comportamento, fluência verbal e ritmos circadianos em indivíduos com o Transtorno do Espectro do Autismo (TEA) antes e após o uso de melatonina

Abstract: As características comuns ao quadro do Transtorno do Espectro do Autismo (TEA) destacadas pelo DSM-5 são: déficit de comunicação, dificuldade em fazer amizades ou se relacionar, dependência de rotina, resistência a mudanças e obsessão por itens inapropriados. Tais comportamentos podem ser observados desde a infância, porém com variações em cada indivíduo, o que levou o TEA a ser considerado um “continuum” que varia de menos comprometido (leve) a muito comprometido (grave). Dentre a complexa sintomatologia do TEA nos diferentes graus destaca-se a alta prevalência de distúrbios de sono, com influência negativa nas alterações comportamentais, instabilidade de humor, déficits nas funções neurocognitivas, incluindo memória, atenção, criatividade verbal, flexibilidade cognitiva e raciocínio abstrato.
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Daytime sleepiness affects gait auditory synchronization ability
Abstract: Sleep disturbances in modern life lead to cognitive and motor performance impairments in everyday tasks such as gait. The most common symptom of these disturbances is daytime sleepiness, which can be assessed by questionnaires such as the Epworth Sleep Scale (ESS). The ESS evaluates sleep health and daytime dysfunction. The goal of this study is to assess the influence of sleepiness on a motorauditory synchrony task, rhythmed gait. High and low sleepiness clusters were formed based on the participants ESS scores. 

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Efeito da alternância dos turnos de trabalho sobre o consumo alimentar de trabalhadores rodiziantes
Abstract: Estudos têm descrito hábitos alimentares não saudáveis e horários de refeições irregulares entre trabalhadores em turnos. Entretanto, o impacto da rotação entre os horários de trabalho diurno, vespertino e noturno e os dias livres, dentro de um curto período de tempo, no padrão de consumo alimentar é pouco abordado na literatura. Objetivo: Avaliar o efeito da rotação de turnos na duração do consumo alimentar, do inglês “eating duration” (ED), assim como o efeito da duração do consumo alimentar na ingestão de energia e macronutrientes.
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Efeito da ingestão de uma refeição hiperproteica durante o turno noturno sobre a resposta metabólica pós-prandial no dia seguinte: um estudo crossover, randomizado e controlado
Abstract: O trabalho em turnos tem sido associado com doenças nutricionais e metabólicas, sendo que a qualidade, a quantidade e o horário da alimentação são considerados fatores importantes associados ao desenvolvimento de doenças crônicas e ganho de peso em trabalhadores em turnos. No entanto, o impacto da alimentação noturna na resposta metabólica dos trabalhadores em turnos é pouco explorado na literatura. Objetivo: Avaliar o efeito agudo de uma refeição hiperproteica em comparação com uma refeição normoproteica servidas à noite na resposta metabólica pós-prandial de trabalhadores noturnos no dia seguinte.
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El temps biològic. Els ritmes circadiaris i les seves implicacions en la salut
Abstract: En el curs de l’evolució els éssers vius s’han hagut d’adaptar als canvis cíclics generats pels moviments de la Terra i, en conseqüència, presenten variacions diàries en la seva fisiologia i conducta. Els ritmes circadiaris de tots els òrgans i cèl·lules de l’organisme estan en perfecta sincronia produint una estructura orgànica ben definida en el temps. La ciència que estudia els ritmes biològics és la cronobiologia. La principal estructura que regula els ritmes circadiaris en els mamífers són els nuclis supraquiasmàtics, un conjunt de neurones a la base del cervell. La preferència de les persones a triar un horari determinat, el cronotip, ve donada per la genètica del rellotge intern, per l’edat i per la llum. Quan per determinades circumstàncies el rellotge intern es desajusta del temps extern es parla de desajust circadiari. La causa més típica de desajust circadiari són els treballs nocturns a torns, però també pot produir-se per il·luminació anòmala o per poca regularitat horària. El desajust circadiari és un risc per a la salut, i pot comportar més incidència d’alteracions metabòliques, com ara diabetis, malalties cardiovasculars i alteracions del son i la cognició.
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Evaluating the efficacy of Internet-Based Exercise programme Aimed at Treating knee Osteoarthritis (iBEAT-OA) in the community: a study protocol for a randomised controlled trial
Abstract: Knee osteoarthritis (OA) is the most common joint disease worldwide. As of today, there are no disease-modifying drugs, but there is evidence that muscle strengthening exercises can substantially reduce pain and improve function in this disorder, and one very well tested physiotherapy protocol is the ‘Better Management of Patients with Osteoarthritis’ developed in Sweden. Given the high prevalence of knee OA, a potentially cost-effective, digitally delivered approach to treat knee OA should be trialled. This study aims to explore the benefits of iBEAT-OA (Internet-Based Exercise programme Aimed at Treating knee Osteoarthritis) in modulating pain, function and other health-related outcomes in individuals with knee OA.