Association of Light Exposure on Physical Activity and Sedentary Time in Young People

Aggio, Daniel; Smıth, Lee; Fisher, Abigail; Hamer, Mark

doi:10.3390/ijerph120302941

Cited by 13 publications

(16 citation statements)

References 37 publications

(42 reference statements)

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“…3, indicating that some participants may have spent more time inside, away from the increased sunlight. Wide variations in individual light exposure have also been documented in previous studies (Aggio et al, 2015; Schmalwieser et al, 2010; Thieden, 2008). Future studies in larger and more generalizable samples in conjunction with light exposure measurements would strengthen the external validity of our findings.…”

Section: Discussionsupporting

confidence: 71%

Pupillary response abnormalities in depressive disorders

Laurenzo¹,

Kardon

Ledolter

et al. 2016

Psychiatry Research

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Depressive disorders lack objective physiological measurements to characterize the affected population and facilitate study of relevant mechanisms. The melanopsin-mediated light signaling pathway may contribute to seasonal variation and can be measured non-invasively by pupillometry. We prospectively studied changes in melanopsin-mediated pupillary constriction in 19 participants with major depressive disorder (MDD) and 10 control across the summer and winter solstices. The melanopsin-mediated response, as measured by the pupil's sustained constriction six s after a high intensity blue light stimulus, was marginally attenuated in those with MDD relative to controls (p=0.071). The participants with MDD unexpectedly showed a significantly reduced transient pupillary response to low intensity red (p=0.011) and blue light (p=0.013), but not high intensity red and blue light. Sustained pupillary constriction in response to high intensity blue light was more pronounced with increasing daylight hours (p=0.037) and was more strongly related to objectively measured versus estimated light exposure. Melanopsin-mediated impairments in pupil response may serve as a biological marker for vulnerability to depression in low light conditions. Assessment of these and other responses to light stimuli, such as response to low intensity light, may be useful for the study of the neurobiology of MDD and related mood disorders.

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Section: Discussionsupporting

confidence: 71%

Pupillary response abnormalities in depressive disorders

Laurenzo¹,

Kardon

Ledolter

et al. 2016

Psychiatry Research

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“…Al comparar los METs entre género los datos fueron similares entre los grupos, no obstante al momento de analizar el tiempo dedicado a las diferentes intensidades de la AF, los niños le brindaron 13.46% más tiempo de actividad moderada que las niñas; en cambio, ellas le dedicaron 13.79% más del tiempo en actividades ligeras. Las diferencias de género e intensidad han sido reportados también por otros estudios previos (Ridgers et al, 2010;Dyment, Bell, y Lucas, 2009;Patnode et al, 2010;Dessing et al, 2013;Baquet et al, 2014;Aggio, Smith, Fisher, y Hamer, 2015), donde se concuerda que los niños realizan AF diferente que las niñas. Tal vez los niños sean más afines a realizar AF en deportes muy populares y competitivos como el fútbol; y es posible que las niñas se involucren en otras actividades que requieren menos intensidad, como lo puede ser actividades de tipo social.…”

Section: Discussionunclassified

“…Con relación a las conductas sedentarias el porcentaje de tiempo dedicado para este fin fue por debajo del 3%, mucho menor a los resultados reportados por Dessing et al (2013), que encontraron valores por encima del 70% en niños de primaria. Además, los resultados del presente estudio no mostraron diferencias entre género con respecto a esta variable, aunque en la literatura las mujeres poseen conductas más sedentarias que los niños durante el recreo (e.g., Baquet et al, 2014;Aggio et al, 2015). El recreo ofrece una serie de alternativas que contribuyen a que los alumnos se involucren en AF.…”

Section: Discussionunclassified

Determinación de la intensidad y el gasto calórico de la actividad física durante el recreo escolar en niños y niñas de nivel primaria

et al. 2017

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“…Researchers concluded that average light exposure is positively associated with time in MVPA and negatively associated with sedentary time. Therefore, one may conclude that increasing daylight exposure might be a useful intervention strategy for promoting physical activity and consequently vitality and performance among young Students [35].…”

Section: Natural Light and Students' Academic Performancementioning

confidence: 99%

“…Aggio et al [35] evaluated the impact of light exposure on the productivity of 229 students from the perspective of physical activity and sedentary time (age mean = 8.8 years) in Camden, UK. To investigate it, daily sedentary time, Moderate and Vigorous Physical Activity (MVPA) and light exposure were measured daily by using a tri-axial accelerometer with an ambient light sensor during the summer.…”

Section: Natural Light and Students' Academic Performancementioning

confidence: 99%

Natural Light and Productivity: Analyzing the Impacts of Daylighting on Students’ and Workers’ Health and Alertness

2016

IJACEBS

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Abstract-Studies show that the quality of the school environment significantly influences students' academic performance. Among the many attributes of the school environment, light is one of the most visible and talked about ones. Lighting in the classrooms has been the subject of many studies for over a century. In recent years, special attention has been given to the impact of natural light on learning as light has physiological, psychological and behavioral influences on school children as well as workers. A multitude of surveys has indicated also that daylight impacts the health. We believe that workers' and students' health, satisfaction, attention, and consequently performance are improved with the help of natural light. This paper discusses the current literature and design-based evidence to evaluate the impacts of natural light on office workers and students' scholastic performance. Issues of timing and exposure to daylight are also discussed.Keywords-Daylighting, Morning Sunlight, Students, Health, Workers Performance, Alertness I. INTRODUCTIONAmong the many elements that impact building occupants, lighting seems to have the most influence. Light is an essence for humans and it is known that has physical, physiological, and psychological influences [1].In the early part of the 20 th century, natural light was the primary source of building illumination. In a short span of a couple of decades, electric lighting became the primary source of illumination, mostly because of convenience. In recent years, energy conservation and environmental concerns have changed those practices and brought daylighting once again at the forefront of the sustainability debate [2]. For decades, an appropriate lighting design was based on the idea that it should meet the needs of the building occupants especially in terms of visual task performance. However, recent connections between health and wellbeing and lighting have made lighting of building interiors one of the most salient environmental factors in architectural design [1]. Recent studies have proven that there is a correlation between lighting and humans' performance and health. Light does not only provide visual information but also constitutes a powerful modulator of our circadian rhythm and many non-visual functions including the state of alertness, mental focus, and cognitive performance [3]. Light is also an important ingredient in educational settings, as it appears to have strong influences on cognition and learning. Research on electric lighting in classrooms has received some attention over the last few decades but research on the impact of natural light on students has been somewhat scarce [4]. The limited number of studies in this area seem to show that windows and daylight can enhance students' physical and psychological health, influence their mood, behavior and learning [5], [6]. Our study presents a comprehensive review of recent work that explored the relationship between daylight and students' and workers' health and performance. In this regard, the in...

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Association of Light Exposure on Physical Activity and Sedentary Time in Young People

Cited by 13 publications

References 37 publications

Pupillary response abnormalities in depressive disorders

Pupillary response abnormalities in depressive disorders

Determinación de la intensidad y el gasto calórico de la actividad física durante el recreo escolar en niños y niñas de nivel primaria

Natural Light and Productivity: Analyzing the Impacts of Daylighting on Students’ and Workers’ Health and Alertness

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