Comparing the effects of two different break strategies on occupational sedentary behavior in a real world setting: A randomized trial

Emily L Mailey, Sara K Rosenkranz, Kelsey Casey, Aaron Swank, Emily L Mailey, Sara K Rosenkranz, Kelsey Casey, Aaron Swank

Abstract

Developing interventions to reduce sedentary behavior in the workplace is an important public health priority. Furthermore, research is needed to determine whether different approaches to breaking up prolonged sitting during the workday are equally feasible and effective. Thus, the purpose of this study was to determine whether varying the frequency and duration of activity breaks during the workday would differentially impact sedentary behavior and health outcomes. Inactive females (N = 49) working full-time sedentary jobs were recruited for this parallel-group randomized trial. Participants were randomly assigned to take short, frequent breaks from sitting (1-2 min every half hour; SB) or longer, planned breaks from sitting (two 15-minute breaks per workday; LB) during each workday across an 8-week intervention. Sedentary time and health outcomes were assessed at baseline and post-intervention. The study ran from March 2014-June 2015. Results showed sedentary time during the workday decreased significantly in the SB group (- 35.6 min; d = - 0.75; p = 0.03), but did not change in the LB group (+ 4.5 min; d = 0.12). Participants in the SB group also demonstrated small-to-moderate declines in total cholesterol (d = - 0.33; p = 0.10), triglycerides (d = - 0.38; p = 0.06) and fasting blood glucose (d = - 0.29; p = 0.01) from pre to post-intervention. Health outcomes did not change in the LB group. This study demonstrated that taking short, frequent breaks from sitting during the workday is a feasible and effective approach for reducing sedentary time at work. These results have implications for the development of public health messages addressing sedentary behavior, and inform future interventions to reduce sedentary time in the workplace.

Trial registration: This study is registered at www.clinicaltrials.gov: NCT02609438.

Keywords: Biomarkers; Intervention; Sedentary; Sitting; Worksite.

Figures

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Fig. 1
CONSORT diagram.

References

    1. Alkhajah T.A., Reeves M.M., Eakin E.G., Winkler E.A.H., Owen N., Healy G.N. Sit-stand workstations: a pilot intervention to reduce office sitting time. Am. J. Prev. Med. 2012;43(3):298–303.
    1. Australian Department of Health Australia's physical activity and sedentary behaviour guidelines. 2014. (Accessed November 2, 2015)
    1. Canadian Society for Exercise Physiology Canadian physical activity and Canadian sedentary behaviour guidelines. 2011. (Accessed November 2, 2015)
    1. Carnethon M., Whitsel L.P., Franklin B.A. Worksite wellness programs for cardiovascular disease prevention: a policy statement from the American Heart Association. Circulation. 2009;120(17):25–41.
    1. Carr L.J., Karvinen K., Peavler M., Smith R., Cangelosi K. Multicomponent intervention to reduce daily sedentary time: a randomised controlled trial. BMJ Open. 2013;3
    1. Carr L.J., Leonhard C., Tucker S., Fethke N., Benzo R., Gerr F. Total worker health intervention increases activity of sedentary workers. Am. J. Prev. Med. 2015
    1. Chastin S.F.M., Egerton T., Leask C., Stamatakis E. Meta-analysis of the relationship between breaks in sedentary behavior and cardiometabolic health. Obesity. 2015;23:1800–1810.
    1. Chau J.Y., van der Pleog H.P., van Uffelen J.G. Are workplace interventions to reduce sitting effective? A systematic review. Am. J. Prev. Med. 2010;51:352–356.
    1. Church T.S., Thomas D.M., Tudor-Locke C. Trends over 5 decades in U.S. occupation-related physical activity and their associations with obesity. PLoS One. 2011;6(5):e19657.
    1. Clemes S.A., OʼConnell S.E., Edwardson C.L. Office workers' objectively measured sedentary behavior and physical activity during and outside working hours. J. Occup. Environ. Med. 2014;56(3):298–303.
    1. Dunstan D.W., Salmon J., Owen N. Associations of TV viewing and physical activity with the metabolic syndrome in Australian adults. Diabetologia. 2005;48:2254–2261.
    1. Dunstan D.W., Healy G.N., Sugiyama T., Owen N. ‘Too much sitting’ and metabolic risk – has modern technology caught up with us? Eur. Endocrinol. 2010;6:19–23.
    1. Dunstan D.W., Kingwell B.A., Larsen R. Breaking up prolonged sitting reduces postprandial glucose and insulin responses. Diabetes Care. 2012;35:976–983.
    1. Freedson P.S., Melanson E., Sirard J. Calibration of the computer science and applications, Inc. accelerometer. Med. Sci. Sports Exerc. 1998;30:777–781.
    1. Gardner B., Smith L., Lorencatto F., Hamer M., Biddle S.J.H. How to reduce sitting time? A review of behaviour change strategies used in sedentary behaviour reduction interventions among adults. Health Psychol. Rev. 2015
    1. George E.S., Rosenkranz R.R., Kolt G.S. Chronic disease and sitting time in middle-aged Australian males: findings from the 45 and up study. Int. J. Behav. Nutr. Phys. Act. 2013;10:20.
    1. Hamilton M.T., Healy G.N., Dunstan D.W., Zderic T.W., Owen N. Too little exercise and too much sitting: inactivity physiology and the need for new recommendations for sedentary behavior. Curr. Cardiol. Risk Rep. 2008;2:292–298.
    1. Healy G.N., Wijndaele K., Dunstan D.W. Objectively measured sedentary time, physical activity, and metabolic risk: the Australian Diabetes, Obesity and Lifestyle Study (AusDiab) Diabetes Care. 2008;31:369–371.
    1. Healy G.N., Dunstan D.W., Salmon J. Breaks in sedentary time: beneficial associations with metabolic risk. Diabetes Care. 2008;31:661–666.
    1. Katzmarzyk P.T., Church T.S., Craig C.L., Bouchard C. Sitting time and mortality from all causes, cardiovascular disease, and cancer. Med. Sci. Sports Exerc. 2009;41:998–1005.
    1. Lyden K., Kozey Keadle S.L., Staudenmayer J.W., Freedson P.S. Validity of two wearable monitors to estimate breaks from sedentary time. Med. Sci. Sports Exerc. 2012;44(11):2243–2252.
    1. Matthews C.E., Chen K.Y., Freedson P.S. Amount of time spent in sedentary behaviors in the United States, 2003–2004. Am. J. Epidemiol. 2008;167:875–881.
    1. Neuhaus M., Eakin E.G., Straker L. Reducing occupational sedentary time: a systematic review and meta-analysis of evidence on activity-permissive workstations. Obes. Rev. 2014
    1. Office of Disease Prevention and Health Promotion Physical activity guidelines for Americans. 2008. (Accessed November 2, 2015)
    1. Owen N. Sedentary behavior: understanding and influencing adults' prolonged sitting time. Prev. Med. 2012;55(6):535–539.
    1. Owen N., Healy G.N., Matthews C.E., Dunstan D.W. Too much sitting: the population health science of sedentary behavior. Exerc. Sport Sci. Rev. 2010;38(3):105–113.
    1. Owen N., Sugiyama T., Eakin E.E., Gardiner P.A., Tremblay M.S., Sallis J.F. Adults' sedentary behavior: determinants and interventions. Am. J. Prev. Med. 2011;41(2):189–196.
    1. Parry S., Straker L. The contribution of office work to sedentary behavior associated risk. BMC Public Health. 2013;13(1):296.
    1. Patel A.V., Bernstein L., Deka A. Leisure time spent sitting in relation to total mortality in a prospective cohort of US adults. Am. J. Epidemiol. 2010;172:419–429.
    1. Peddie M.C., Bone J.L., Rehrer N.J., Skeaff C.M., Gray A.R., Perry T.L. Breaking up prolonged sitting reduces postprandial glycemia in healthy, normal-weight adults: a randomized crossover trial. Am. J. Clin. Nutr. 2013;98:358–366.
    1. Physical Activity Guidelines Advisory Committee Physical activity guidelines advisory committee report. 2008. (Accessed November 2, 2015)
    1. Plotnikoff R., Karunamuni N. Reducing sitting time: the new workplace health priority. Arch. Env. Occup. Health. 2012;67(3):125–127.
    1. Puig-Ribera A., Bort-Roig J., Gonzalez-Suarez A.M. Patterns of impact resulting from a ‘sit less, move more’ web-based program in sedentary office employees. PLoS One. 2015;10(4)
    1. Saunders T.J., Larouche R., Colley R.C., Tremblay M.S. Acute sedentary behaviour and markers of cardiometabolic risk: a systematic review of intervention studies. J. Nutr. Metab. 2012;712435
    1. Shrestha N., Kukkonen-Harjula K.T., Verbeek J.H., Ijaz S., Hermans V., Bhaumik S. Workplace interventions for reducing sitting at work. Cochrane Database Syst. Rev. 2016;3
    1. Stephens B.R., Granados K., Zderic T.W., Hamilton M.T., Braun B. Effects of 1 day of inactivity on insulin action in health men and women: interaction with energy intake. Metabolism. 2011;60:941–949.
    1. Tew G.A., Posso M.C., Arundel C.E., McDaid C.M. Systematic review: Height-adjustable workstations to reduce sedentary behaviour in office-based workers. Occup. Med. 2015;65(5):357–366.
    1. Thorp A.A., Healy G.N., Winkler E. Prolonged sedentary time and physical activity in workplace and non-work contexts: a cross-sectional study of office, customer service and call centre employees. Int. J. Behav. Nutr. Phys. Act. 2012;9:128.
    1. Wilmot E.G., Edwardson C.L., Achana F.A. Sedentary time in adults and the association with diabetes, cardiovascular disease and death: systematic review and meta-analysis. Diabetologia. 2012;55:2895–2905.

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