Adherence
Daily sedentary time is log-linearly associated with increased all-cause mortality in adults, with a mortality risk cut-off of 7 hours per day for self-reported measures and 9 hours per day for device-based measures.
Aim to keep your total daily sitting time under 7 hours if possible. If you use a fitness tracker, note that the risk threshold appears to be around 9 hours, but self-reported data suggests risk starts rising earlier. Since the risk increases log-linearly, every hour saved above these thresholds reduces mortality risk. Prioritize breaking up long sitting periods with standing or light movement.
The cut-off of daily ST in studies with self-report ST was 7 h/day in comparison with 9 h/day for those with device-based ST.
Why this rating
Large-scale meta-regression of 19 prospective cohort studies with >1 million participants, though limited by heterogeneity and reliance on self-report in most studies.
Source
A cut-off of daily sedentary time and all-cause mortality in adults: a meta-regression analysis involving more than 1 million participants
Po‐Wen Ku et al. · BMC Medicine · 2018
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