Breaking up sedentary time in overweight/obese adults on work days and non-work days: results from a feasibility study
2018
de Jong, Nathan | Debache, Isaac | Pan, Zhaoxing | Garnotel, Mael | Lyden, Kate | Sueur, Cédric | Simon, Chantal | Bessesen, Daniel | Bergouignan, Audrey | University of Colorado Anschutz Medical Campus [Aurora] | Département Ecologie, Physiologie et Ethologie (DEPE-IPHC) ; Institut Pluridisciplinaire Hubert Curien (IPHC) ; Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS) | Cardiovasculaire, métabolisme, diabétologie et nutrition (CarMeN) ; Institut National de la Recherche Agronomique (INRA)-Université Claude Bernard Lyon 1 (UCBL) ; Université de Lyon-Université de Lyon-Institut National des Sciences Appliquées de Lyon (INSA Lyon) ; Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Hospices Civils de Lyon (HCL)-Institut National de la Santé et de la Recherche Médicale (INSERM) | Denver Health Medical Center | Division of Endocrinology, Metabolism and Diabetes, Department of Medicine ; University of Colorado Anschutz Medical Campus [Aurora] | National Institutes of Health [K99DK100465], [UL1 TR001082] ; NORC [5P30DK048520] ; CTRC [5P30DK048520], [UL1TR002535] ; CDC NIOSH Mountain and Plains Education and Research Center [T42OH009229-10] ; French national Research Agency [ANR-15-CE36-0005] ; Grand Est Region (France) | ANR-15-CE36-0005,HANC,Influence de la topologie urbaine sur le réseau social et la santé des personnes âgées(2015)
Office workers are vulnerable to the adverse health effects of sedentary behavior (i.e., sitting time). Increasing physical activity and preventing time spent sitting is an occupational health priority. This randomized crossover design study compared the short-term (3-days) effects of hourly interruptions of sedentary time with 5-min micrrobouts of activity for 9 hours (MICRO) to a sedentary control condition (SED) and a duration-matched continuous single bout of physical activity (45-min/d, ONE) condition on inclinometer-derived sitting-time on work and non-work days in sedentary overweight/obese adults. Differences in sitting/lying, standing, stepping, number of sit/stand transitions, time spent in moderate and vigorous activity (MVPA), energy expenditure, self-perceived vigor and fatigue, and insulin sensitivity were also examined. Twenty-two participants (10M/12F; 31.7 ± 1.3 year old BMI 30.4 ± 0.5 kg/m²) completed all conditions. No between-condition effects were observed in sitting-time and sit/stand transitions. Both interventions increased daily steps, MVPA and energy expenditure with increases being greater in ONE than MICRO. Feelings of vigor and fasting insulin sensitivity were also improved. Participants reported less fatigue with MICRO than SED and ONE. Both interventions increase physical activity and energy expenditure in occupational and leisure-time contexts. The sustainability of these effects over the long term and on health outcomes will need to be tested in future studies.
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