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Ishii Lab
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A lab that uses surveys to study "sitting too much" and physical activity among children and working adults.

AboutAbout the lab
Confirming excessive sitting and physical activity with data.
The Ishii Lab studies the physical activity and sedentary behavior of children and working adults based on surveys.
It examines, through long-term follow-up, how sitting too much affects mental and physical health as well as academic performance.
The lab focuses on the balance among time spent moving, sitting, and sleeping within the 24 hours of a day.
Its findings are applied to how health education and health promotion are carried out.
Key terms
- Physical activity
- All movement of the body that uses energy, including housework and commuting to school, not only exercise.
- Sedentary behavior
- Staying seated or lying down, a way of spending time that uses almost no energy.
- Health promotion
- Efforts that enable each person to manage and improve their own health.
NewsLab news
A joint study involving Prof. Ishii estimates the economic burden of chronic diseases caused by sitting too much
A joint study involving Prof. Ishii reports an association between a high level of well-being and a lower risk of death
Prof. Ishii and colleagues report that 3 minutes 30 seconds of light exercise improves children's cognitive function and mood
Prof. Ishii and colleagues report an association between physical fitness and lifestyle habits in elementary school children in PLOS One
Prof. Ishii and colleagues report in Scientific Reports that light exercise increases cerebral blood flow in children
ResearchResearch themes
The lab surveys how much time people, from children to working adults, spend moving and sitting, and clarifies how this affects their health and academic performance. It also works on developing approaches to reduce sitting too much.
*Illustrative imageChildren's 24-Hour Behavior
The lab treats physical activity, sedentary behavior, and sleep as a balance within a 24-hour day, and follows children over time to examine how maintaining that balance affects their health and academic performance in the long run.
*Illustrative imageReducing Sitting Time
The lab investigates how much time working adults spend sitting and how it affects their health. It also works on developing intervention programs to reduce sitting too much.
MembersFaculty
- ProfessorKaori Ishii
VoicesStudent voices
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “Akeno-kita Elementary School, South Building” Watofamily / CC BY-SA 4.0 (cropped)
- Children's 24-Hour Behavior: “Alarm clock on a chair (Unsplash)” Szűcs László / CC0 (cropped)
- Reducing Sitting Time: “Buerostuhl (fcm)” Frank C. Müller / CC BY-SA 4.0 (cropped)
- Related lab (岡研究室): “Residential area in Yamatocho, Nakano, Tokyo” Mikagekawase / CC BY 4.0 (cropped)
- Related lab (鳥居研究室): “Radiograph of human knee with Osgood–Schlatter disease” James Heilman, MD / CC BY-SA 3.0 (cropped)
- Related lab
(宮地研究室): “Footprints on the snow road - 1” KKPCW / CC BY-SA 4.0 (cropped) - Related lab (中村研究室): “Mortlake, Footpath and trees, Palewell Park - geograph.org.uk - 3427351” Dr Neil Clifton / CC BY-SA 2.0 (cropped)
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