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1 3 2017 9 15 Sedentary behavior is any waking behavior characterized by an energy expenditure metabolic equivalents (METs), while in a sitting, reclining or lying posture. (Trenblay, 2017) AmericanTimeUseSurvey2008 6 AMNoon6 PMMidnight 1 Church TS, et al. (2011) Trends over 5 Decades in Occupation-Related Physical Activity and Their Associations with 6(5): e1965 50 19 7 59 49 40 2 Archer E, et al. (2013) 45-Year Trends in Women s Use of Time and Household Management Energy Expenditure.

2 PLoSONE 8(2):50 PC NHK 2015 NHK 2015 3 / / 1 57%40%3% 1 Center for Disease Control, 20111 1995 30 Every US adults should accumulate 30 minutes or more of moderate-intensity physical activity on most, preferably all, days of the week Pete, et al. Physical activity and public health. A recommendation from the Centers for Disease Control and Prevention and the American College of Sports Medicine. JAMA. 1995 Feb 1;273(5) 1 Center for Disease Control 20111 2000 Past research has emphasized psychosocial determinants of physical activity.

3 Progress in the field will require more focus on understanding sedentary behaviors Exercise & Sport Sciences Reviews 2000 pp153-1582003 Nurse shealthstudy Hu et al. Television Watching and Other Sedentary Behaviors in Relation to Risk of Obesity and Type 2 Diabetes Mellitus in Women JAMA. 2003;289(14):1785-1791. 3793223072191501128156394031282919413100 501001502002503003504002016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 Number of Publication Sedentary Behavior 13 95% CVD 6 CVD 3 7 7 5 HR= ( )HR= ( )HR= ( )HR= ( )HR= ( )HR= ( )HR= ( )Low riskHigh risk Biswas A,et al.

4 Sedentary Time and Its Association With Risk for Disease Incidence, Mortality, and Hospitalization in Adults:A Systematic Review and Meta-analysis. Ann Intern Med. 2015;162:123 132. 18 WHO 2 2 2 Screentime 2 Kahlmeieret al. National physical activity recommendations: systematic overview and analysis of the situation in European countries BMC Public Health (2015) 15:133 Screentime 6 2000 TV SLQ-J WSWQ ActiveStylePro Actigraph Break Bout ActivPAL(PAL Technologies Break Bout or TV PC SLQ-J(Sedentary Lifestyle Questionnaire for Japanese) TV PC WSWQ(workers' sitting- and walking-time questionnaire) JNIOSH-WLAQ 1.)

5 Ishii K et al, Validity and Reliability of Japanese-Language Self-Reported Measures for Assessing Adults Domain-Specific Sedentary Time, J Epidemiol2017 (in press)2. Kai Y et al, Reliability and validity of the Sedentary Lifestyle Questionnaire for Japanese SLQ-J 2017 pp23-293. Matsuo T et al, Percentage-Method Improves Properties of Workers Sitting-and Walking-Time Epidemiol. 2016 Aug 5;26(8):405-12. 4. , JNIOSH-WLAQ 2017 in press) Q 1 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7 Salmon J,etal Physical activity and sedentary behavior: a population-based study of barriers, enjoyment, and preference.

6 Health Psychol2003, 22:178 188 Inoue S,etal Television viewing time is associated with overweight/obesity among older adults, independent of meeting physical activityand health , 22:50 56. Passive Sedentary Behavior 1 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7 1 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7 Mentally-Active Sedentary Behavior BMI 25kg/m2 (K6 )OR(95% C I )pOR(95% C I )p <3h/day 3h/day ( ) ( ) <1h/day 1h/day ( ) ( ) Kikuchi, et al.

7 Distinct associations of different sedentary behaviors with health-related attributes among older 2014 Oct;67:335-9. :Tremblay et al. Physiological and health implications of a sedentary lifestyle Appl. Physiol. Nutr. Metab . 35: 725 740 (2010) 2 Prolonger Breaker Break Bout 1 BMI Healy et in Sedentary Time Diabetes CareApr 2008,31(4)661-666 Honda et al. Sedentary bout durations and metabolic syndrome among working adults: a prospective cohort study BMC Public Health (2016) 16:888 CaseIncident rateHR95% CIP valueTotal sedentary time ( 1-min bout) ( ) ( ) ( ) sedentary time (<30-min bout) ( ) ( ) ( ) sedentary time ( 30-min bout) ( ) ( ) ( ) SB SBadjusted for sex, age, education, smoking,family income, MVPA and waist circumference 2 Hiroyuki Sasai, Assessing sedentary behavior using wearable devices: An overview and future directions J Phys Fitness Sports Med, 6 (3).

8 135-143 (2017) Nationalguideline Conventionalsearch PubMed sedentary behavior AND Japan Television AND Japan Screentime AND Japan 2 2013 2015 0123456782002200520082011201220132014201 520162017 or 12 122 or 111 4262 12TV JPHC study JACC study QOL 1. 2. 3.