David Ohara- PhD
- Professor at State University of Southwestern Bahia
David Ohara
- PhD
- Professor at State University of Southwestern Bahia
About
44
Publications
8,849
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Citations
Introduction
Research and teaching interests: physical activity and sedentary behaviour, health and fitness assessment methods and exercise science.
Ohara´s research focus on the association among physical activity, sedentary behavior, sleep and health outcomes in young and adults.
Current institution
State University of Southwestern Bahia
Current position
- Professor
Additional affiliations
April 2018 - June 2021
Position
- Professor (Associate)
Description
- Professor of the Health Sciences Postgraduate Program, Physical Education Postgraduate Program and Nursing Postgraduate Program at Universidade Estadual de Santa Cruz. Ohara´s research focus on the associations among physical activity, sedentary behaviours and health outcomes in young and adults.
Education
March 2012 - June 2016
State University of Londrina
Field of study
- Physical Education
Publications
Publications (44)
Background and Aims
Musculoskeletal disorders (MSD) are an important health problem, and the Covid‐19 pandemic affected several lifestyle and health aspects worldwide, including moderate‐to‐vigorous physical activity (MVPA), sedentary behavior (SB) and sleep time, which compose the 24‐h movement guidelines (24‐hMG). It is unclear whether meeting 24...
Avaliar a associação de comportamentos de movimento de 24 horas com ansiedade em universitários durante a pandemia. Os resultados transversais baseiam-se em 87 estudantes (idade média = 26,6±6,5 anos, 72,7% do sexo feminino). Foi preenchido um questionário online sobre dados sociodemográficos, ansiedade (Inventário de Ansiedade Traço-Estado-Traço),...
Vulnerability and frailty are well-known fall risk factors in older people. However, whether both factors are associated has not been fully elucidated, and more current scientific evidence on this relationship is still lacking. The objective of this study was to analyze the relationship between vulnerability and fragility and the risk of being left...
Os testes do Qui-Quadrado de adequação ao ajuste e de independência são dois dos mais utilizados com dados categóricos. Contudo, esses testes são por vezes erroneamente interpretados. Além disso, não há nenhum tutorial publicado em português sobre como realizar e interpretar esses testes. Para preencher essa lacuna na literatura, apresentamos um tu...
Objective: This study aimed to assess the criterion validity of the Sedentary Behavior Questionnaire in college students by comparing it with data from an accelerometer. Methods: A convenience sample of 80 university students (73.7% female), from a public university in Brazil participated in the study. Participants wore an ActiGraph (wGT3X-BT) acce...
Este estudo teve por objetivo avaliar a efetividade de terapias psicossociais de grupo online na redução de sintomas de depressão, ansiedade e estresse durante a pandemia da COVID-19. Trata-se de estudo de quase-experimental, com aplicação da escala DASS-21 aos participantes de grupos terapêuticos (n=66), em dois momentos: pré e pós-terapias. As mé...
Objetivo: avaliar o estilo de vida para a atividade física (AF) e o comportamento sedentário (CS) de trabalhadores da APS e também o impacto das características sociodemográficas, profissionais e de doenças nesses estilos no período antecessor a vacinação em massa da COVID-19. Método: De corte transversal, participaram 32 trabalhadores da APS de It...
Objetivo: Avaliar a prevalência de Transtornos Mentais Comuns (TMC), excesso de peso e fatores associados em trabalhadores da atenção primária à saúde (APS). Métodos: Estudo epidemiológico transversal, no qual participaram 105 trabalhadores da APS de Vitória da Conquista (BA) e São Geraldo da Piedade (MG). Para coleta dos dados utilizou-se formulár...
O objetivo do presente estudo foi avaliar a associação entre fatores sociodemográficos e qualidade de vida, além de identificar o nível de atividade física e comportamento sedentário em universitárias, durante o período pandêmico da COVID-19. Participaram do estudo 60 universitárias (26,6±0,6 anos) dos cursos de graduação e pós-graduação de uma Uni...
OBJETIVO: Avaliar a percepção da qualidade de vida (QV) de trabalhadores da Atenção Primária à Saúde (APS), em uma cidade do interior do Brasil, antes da vacinação em massa pela COVID-19.MÉTODOS: Trata-se de um estudo de método misto, com trabalhadores da APS de um município da Bahia. Os trabalhadores responderam um questionário on-line com informa...
Este trabalho tem como objetivo identificar a possível correlação entre as diferentes intensidades da atividade física realizadas na escola e o desempenho escolar. Trata-se de estudo transversal, de amostra não probabilística, realizado no ano de 2019 em uma instituição de ensino municipal de Ilhéus-BA. Participaram do estudo 39 escolares de ambos...
Introdução: Para promoção efetiva de atividades físicas com maiores níveis de adesão se faz necessário a compreensão de todos os fatores que podem influenciar na participação. Objetivo: Identificar o perfil motivacional dos participantes de um programa de atividade física domiciliar e os motivos pelos quais esses participantes procuraram o projeto....
Objetivo: Analisar a ocorrência do estresse ocupacional nos profissionais da equipe de enfermagem em um hospital de grande porte no interior do Sul da Bahia, Brasil. Métodos: Estudo quantitativo, de natureza descritiva–exploratória e transversal, no qual participaram 114 profissionais da enfermagem. Para coleta dos dados utilizou-se a Escala de Est...
Background
It is estimated that, worldwide, 9% of deaths occur as a result of insufficient physical activity (PA) practice. Practicing PA can prevent and/or reduce the deleterious effects of different types of diseases and can improve general health aspects related to health-related quality of life (HRQoL).
Purpose
To analyze the relationship of d...
Concomitantemente ao aumento do consumo de hortaliças in natura, observou-se que tem crescido o número de doenças transmitidas por alimentos. Diante disso, este trabalho objetivou identificar as principais estruturas parasitárias de importância médico/veterinária encontradas em alfaces crespas (Lactuca sativa), comercializadas em diferentes estabel...
Our aim was to analyze the joint association of parental characteristics and offspring obesity indicators with metabolic risk in adolescents. A cross-sectional study was carried out with 972 adolescents and their parents. We observed that overweight adolescents who have a normal weight mother show lower metabolic risk in comparison with their count...
Abstract Aims: This study aimed to compare the sedentary time measured using the ActiGraph GT3X accelerometer with the measurement of sitting and standing time obtained by ActivPAL inclinometers. Methods: This was a cross-sectional study conducted with a sample of 60 schoolchildren (34 males) of one elementary public school in Brazil. The students...
Session ratings of perceived exertion (sRPE) are considered a practical marker of whole session exercise intensity, but its relationship to exercise volume has remained unclear. We analyzed the effects of exercise duration at different intensities on overall and differentiated sRPE. Sixteen males (Mage = 22.6, SD = 2.2 years; Mheight = 176.4, SD =...
Embora o Brasil seja um país de tradição no futebol, pouco se tem investigado acerca dos aspectos relacionados à saúde de jogadores, sobretudo no que tange o futebol feminino. Com isso, o objetivo do estudo foi descrever o perfil dos fatores de risco para o desenvolvimento de doenças crônicas não transmissíveis (DCNT), de comportamento sedentário e...
BACKGROUND:The COVID19 Pandemic has impacted human behavior worldwide. Restrictive circulation, working and staying at home,and limitations on outdoor leisure time may have changed people’s physical activity level, stimulating sedentary behavior.AIM:To examine changes in physical activity levels and use of urban space for leisure during quarantine...
Objective: to describe the prevalence of physical inactivity and sedentary conduct of
residents from a residency program in multidisciplinary family health during the COVID-
19 pandemic. Methods: a cross-sectional study was made with 10 multidisciplinary
residents of a public university from Bahia state. A questionnaire was applied remotely
between...
BACKGROUND:
This investigation aimed to analyze the agreement between the GT3X accelerometer and the ActivPAL inclinometer for estimating and detecting changes in sedentary behavior of different contexts among adolescents.
METHODS:
Secondary data from an intervention using standing desks in the classroom conducted within 2 sixth-grade classes (int...
Background
This study aimed to determine the allometric exponents for concurrent size descriptors (stature, body mass and fat-free mass) and also to examine the contribution of chronological age and pubertal status combined with above mentioned size descriptors to explain inter-individual variability in the peak of oxygen uptake (VO2peak) among gir...
Given the reduced proportion of the 24 hours of the day spent with moderate to vigorous physical activities, there has been a recent appreciation of integrative and compositional approaches of the different behaviors adopted throughout the day for interpretations of health outcomes. This study points out the importance of integrating sleep time, se...
This study aimed to examine the independent and combined effects of pubertal and weight status on concurrent measurements of peak oxygen (VO2peak) in school aged adolescent males. The final sample included 49 boys (12.3 ± 0.8 years). VO2peak was derived from an incremental progressive maximal protocol using a motorized treadmill. In addition, maxim...
This study compared maturation, body composition and physical fitness between youth soccer athletes with different technical skills levels. Sixty-two young athletes (11-17 years) were categorized dichotomously in more skilled (n=31) and less skilled (n=31) groups based on 3 specific technical tests (Dribbling Speed Test [DST], Shuttle Dribble Test...
Background: Both cardiorespiratory fitness and body fat have been independently related to metabolic syndrome in adolescents, however the strength of these relationships seems to be dependent on the outcome composition.
Aim: To analyse the relationship between cardiorespiratory fitness and body fat combined with different indicators of metabolic ri...
The aim of this study was to analyze the association between risk behaviors and adiposity indicators in adolescents and to discuss some methodological aspects related to this relationship. We evaluated 1,321 adolescents (55.2% female) aged 10-16 years. Relative body fat (%fat) by measurement of triceps and subscapular skinfold thickness and waist c...
This study compared variation in size, function and sport-specific technical skills of youth soccer players associated with differences in biological maturity status. 60 male soccer players of under-14 (U14) and under-17 (U17) categories were submitted to anthropometric and body composition measurements as well as motor and soccer-specific technica...
To analyze the relationship between different physical activity (PA) domains and sociodemographic, psychological, behavioral and biological factors in Brazilian adolescents.
1,220 adolescents (55.1% female) aged between 10 and 16 years-old participated in this study. The Baecke questionnaire was used to evaluate different PA domains, namely occupat...
Background:
Physical activity is recommended as a part of a comprehensive lifestyle approach in the treatment of hypertension, but there is a lack of data about the relationship between different intensities of physical activity and cardiovascular parameters in hypertensive patients. The purpose of this study was to investigate the association bet...
The Acquired Immunodeficiency Syndrome (AIDS), transmitted by the Human Immunodeficiency
Virus (HIV), is a chronic disease with a life expectancy increasingly expanded to their peoples. Physical
activity is presented as a therapeutic tool in maintaining and improving the health and quality
of life of people living with HIV / AIDS. However, little i...
The purpose of this study was to analyze the acute effect of static stretching on the performance of multiple-sets in the bench press exercise. Fifteen men (26.2 ± 0.7 years, 72.4 ± 1.3 kg, 1.78 ± 0.1 m, 22.8 ± 0.3 kg/m) performed four sets of the bench press exercise at 80% of 1RM until concentric failure, both in the stretching condition (SC) and...
Abstract The objective of this study was to develop count cut-points for three different accelerometer models: ActiGraph GT3X, RT3 and Actical to accurately classify physical activity intensity levels in adolescents. Seventy-nine adolescents (10-15 years) participated in this study. Accelerometers and oxygen consumption ([Formula: see text]) data w...
The aim of this study was to verify the validity of cut off points for the Actical accelerometer to estimate sedentary, moderate and vigorous physical activities among adolescents. Seventy-nine adolescents (mean
age 12.5 years; 50.5% boys) were monitored by accelerometry and indirect calorimetry at rest and during
four sedentary activities and el...
The aim of this study was to analyze the validity of four regression equations to estimate the peak oxygen consumption (VO2peak) from the 20-m shuttle run test in adolescents aged 11-13 years. One hundred and fifteen adolescents, 61 boys (mean ± SD: age = 12.3 ± 0.9 years) and 54 girls (age = 12.1 ± 0.7 years) performed the 20-m shuttle run test an...
Objective: To analyze the association between abdominal obesity and high blood pressure among adolescents of public schools from Londrina (PR), Brazil. Methods: The sample was composed by 656 adolescents with age ranging from ten to 13 years old. The following measures were taken: body mass, height, waist circumfer-ence and blood pressure at rest....
OBJETIVO: Avaliar e comparar a prevalência de fatores de riscos cardiovasculares em adolescentes escolares de diferentes classes econômicas. MÉTODOS: Foram avaliados 1.021 adolescentes. Os indivíduos foram pesados e tiveram sua altura e circunferência abdominal medidos, além da sua pressão arterial aferida. A prática de atividade física e condição...
The objective of this study was to investigate the possible differences in the levels of physical fitness related to the health (PFRH) in men and women of different groups of ages. Subjects were 326 part of the sample (132 men and 194 women), not-practitioners of regular physical exercises, which were separate, in accordance with the sex in three g...
