Abstract
No effective and easily implemented intervention strategies for reducing sedentary behavior have been established. This pilot trial (UMIN000024372) investigated whether vibrotactile feedback reduces sedentary behavior. Twenty-six adults aged 30–69 years who were sedentary ≥8 h/day were randomly assigned to control (n = 13) or vibration (n = 13) groups. Participants wore a monitor 9 h daily for seven-day periods at baseline (week zero), during the intervention (weeks one, three, five, and seven), and after the intervention (week eight). During the eight-week intervention, vibration-group participants were notified by a vibration through the monitor whenever continuous sedentary time reached ≥30 min; they also received weekly reports of their sedentary patterns. Control-group participants did not receive feedback. The primary outcome was change in total sedentary time. Changes in longer bouts of sedentary time (≥35 min) were also assessed. No significant difference was found in the change in total sedentary time (control: −17.5 min/9 h, vibration: −9.1 min/9 h; p = 0.42). Although no significant differences were observed in sedentary time in longer bouts, vibration-group participants exhibited significantly lower sedentary time (–21.6 min/9 h, p = 0.045). Thus, vibration feedback does not appear to offer any advantages in reducing total sedentary time.
Highlights
Prolonged sitting has been associated with cardiovascular and all-cause mortality, as well as with various other adverse health outcomes [1,2,3].The Sedentary Behavior Research Network defined sedentary behavior as “any waking behavior characterized by an energy expenditure ≤1.5 metabolic equivalents (METs) while in a sitting or reclining posture” [4]
Among the 10 respondents in the control group, half reported being burdened or irritated by adverse effects, such as redness and itching. The purpose of this pilot study was to determine whether immediate vibrotactile feedback from a thigh-worn activity monitor could reduce sedentary behavior in adults
We found no significant between-group differences in changes in total sedentary time
Summary
Prolonged sitting has been associated with cardiovascular and all-cause mortality, as well as with various other adverse health outcomes (e.g., diabetes, cardiovascular diseases, and cancer) [1,2,3].The Sedentary Behavior Research Network defined sedentary behavior as “any waking behavior characterized by an energy expenditure ≤1.5 metabolic equivalents (METs) while in a sitting or reclining posture” [4]. Prolonged sitting has been associated with cardiovascular and all-cause mortality, as well as with various other adverse health outcomes (e.g., diabetes, cardiovascular diseases, and cancer) [1,2,3]. According to an international comparative study reporting the number of hours spent during a weekday in a sitting posture among adults in 20 countries, adults in Japan spent the longest time being sedentary (420 min/day) [5]. Reducing sedentary behaviors is an important public health priority for the Japanese population. Reducing sedentary behavior may be feasible through interventions that target sedentary behavior and physical activity [6]. According to meta-analytic evidence, activity-permissive workstations in which people can work while standing can reduce sedentary behavior in workdays by 77 min per 8 h
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