Objective, continuous measurement of sedentary behaviour and glucose in people with type 2 diabetes

Kathryn Anne McMillan, Alison Kirk, Allan Hewitt, Sandra MacRury

Research output: Contribution to conferencePosterpeer-review

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Aims: To explore the relationship between daily levels of sitting/lying and glucose in people with Type 2 diabetes (T2D) using objective and continuous measurements. Methods: Ten participants with T2D managed with diet, Metformin or DPP4 inhibitors were recruited (mean age 63.5±9.4 years & BMI 30.8±6.9 kg/cm2). Participants completed a demographic questionnaire and wore an activPAL accelerometer and FreeStyle Libre continuous glucose monitor for 3-14 days whilst documenting sleep, food and medication. Average proportion of time spent sitting/lying, and daily mean glucose during the waking day were calculated. A multiple linear regression was calculated to explore the relationship between time spent sitting/lying, age, BMI, and daily mean glucose. Results: On average, participants spent 67.5% of their day sitting/lying and mean daily glucose was 7.7 (±1.8) mmol/l. Regression analysis suggested a significant effect (F(3,105) = 16.52, p <0.01) for sitting/lying time, age and BMI on daily mean glucose (R2 = 0.30). Participants’ predicted daily mean glucose is equal to -12.23 + 5.14(sitting/lying) + 0.16(age) + 0.21(BMI), with daily mean glucose increasing by 5.14mmol/l for each percent of daily sitting/lying, 0.16mmol/l for each increasing year of age and 0.21mmol/l for each increasing BMI unit. Conclusions: Average sitting/lying time was higher than has previously been reported and percentage sitting/lying time, age and BMI were identified as significant predictors of higher daily mean glucose in people with T2D. Results suggest that increased sedentariness is associated with increased daily mean glucose in those with T2D.
Original languageEnglish
Number of pages1
Publication statusPublished - 8 Mar 2017
EventDiabetes UK Professional Conference 2017 - Manchester Central, Manchester, United Kingdom
Duration: 8 Mar 201710 Mar 2017


ConferenceDiabetes UK Professional Conference 2017
Country/TerritoryUnited Kingdom
Internet address


  • diabetes
  • activPAL
  • sedentary behaviour
  • physical activity


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