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Effect of Sit‐Stand Workstations on Metabolic Risk in Sedentary Workers: A Randomized Controlled Trial
Author(s) -
Carpenter Katie,
Feltes Linda,
Vuong Brenna,
Kalbes Ashley,
Koepp Gabriel,
Dutta Nirjhar,
Levine James,
Pereira Mark
Publication year - 2015
Publication title -
the faseb journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.709
H-Index - 277
eISSN - 1530-6860
pISSN - 0892-6638
DOI - 10.1096/fasebj.29.1_supplement.1055.20
Subject(s) - sitting , medicine , randomized controlled trial , physical therapy , psychological intervention , blood pressure , sedentary lifestyle , risk factor , sedentary behavior , physical activity , demography , nursing , pathology , sociology
Background Sedentary time has been shown to have deleterious effects on health. Today's workforce spends most of the day sitting. The objective of this study was to evaluate the effect of workplace interventions to decrease sedentary time on cardiometabolic risk factors. Methods Sedentary office workers (n=127; ages 22‐64; BMI=28.5±6.1 kg/m 2 ) were recruited from three Minnesota employers and randomized to one of four intervention groups for 6 months: 1) Control, 2) Move (蠅30 min of light activity during the workday), 3) Stand (standing 蠅50% of the workday using a sit‐stand workstation), or 4) Stand+Move (combined Stand and Move). A 'metabolic risk score' (MRS) was calculated at baseline and 6 months using the following cardiometabolic risk factors: blood pressure, fasting blood glucose, log of fasting triglycerides, and HDL‐cholesterol. A z‐score was computed for each risk factor for each subject [(subject value – sample mean)/sample SD]. The MRS was derived by summing the z‐scores (HDL‐z subtracted). Results There was a significant intervention effect on MRS (p<.01). A seasonal time trend was observed, with MRS increasing significantly in Control and Move groups (p<.001), but not for the Stand and Stand+Move. Results (mean±se) are shown in Figure 1. Conclusions Sit‐stand workstations combined with an intervention to increase light physical activity at work may be an effective tool to improve cardiometabolic risk.