Accepted for/Published in: JMIR Diabetes
Date Submitted: Jan 5, 2022
Date Accepted: Apr 20, 2022
Date Submitted to PubMed: Apr 29, 2022
Warning: This is an author submission that is not peer-reviewed or edited. Preprints - unless they show as "accepted" - should not be relied on to guide clinical practice or health-related behavior and should not be reported in news media as established information.
Associations of COVID-19 lockdown restrictions with longer-term activity levels of working adults with type 2 diabetes
ABSTRACT
Background:
Lockdown restrictions reduce COVID-19 community transmission; however, they may pose challenges for non-communicable disease management. A 112-day hard lockdown in Victoria, Australia (commencing March 23, 2020), which affected an intervention trial of reducing and breaking up sitting time in desk workers with type 2 diabetes who were using a provided consumer grade activity tracker (Fitbit).
Objective:
To compare continuously recorded activity levels preceding and during COVID-19 lockdown restrictions among working adults with type 2 diabetes participating in a sitting less and moving more intervention.
Methods:
Eleven participants (8/11 male; mean [SD] age 52.8 [5.0] years) in Melbourne, Australia had Fitbit activity tracked before (mean [SD]: 122.7 [47.9] days) and during (99.7 [62.5] days) city-wide COVID-19 lockdown restrictions. Regression models compared device (Fitbit Inspire HR)-derived activity (steps; METs [metabolic equivalents], mean time in sedentary, lightly, fairly, and very active minutes, and usual bout durations) during restrictions, to pre-restriction. Relative rates (RR) <1.00 indicated a decline in activity levels following restrictions.
Results:
Total wear days were 2447. There was a decrease in steps (-1,584 steps; RR: 0.91; 95%CI: 0.89, 0.93), METs (-83 METs; RR: 0.95; 95%CI: 0.94, 0.95), lightly active (RR: 0.96; 95%CI: 0.92, 0.99), fairly active (RR: 0.82; 95%CI: 0.79, 0.85), very active (RR: 0.92; 95%CI: 0.89, 0.95) intensity minutes, and increases in sedentary minutes (RR: 1.03; 95%CI: 1.01, 1.06). Only very active (+5.1mins) and sedentary (+4.3mins) bout durations changed significantly.
Conclusions:
In adults with type 2 diabetes, COVID-19 lockdown restrictions were associated with decreases in overall activity levels and increases in very active and sedentary bout durations. A Fitbit monitor provided meaningful continuous long term data in this context. Clinical Trial: Australian New Zealand Clinical Trials Registry ANZCTRN12618001159246
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