Background A diverse array of digital technologies are available to children and young
people living in the Global North to monitor, manage, and promote their health and well …

Wearable activity trackers hold great potential for facilitating self-regulated health behavior,
thereby improving physical fitness and preventing cardiovascular diseases. Unfortunately …

Background: The System Usability Scale (SUS) is a widely used scale that has been used to
quantify the usability of many software and hardware products. However, the SUS was not …

Recently, the popularity of smart wearable technologies, such as Fitbit, has significantly
increased. There are numerous potential benefits in using these devices, especially among …

Background Sleep disorders are a major public health issue. Nearly 1 in 2 people
experience sleep disturbances during their lifetime, with a potential harmful impact on well …

Digital technologies such as websites, online discussion forums, social media, content-
sharing platforms, mobile apps and wearable devices are now available as a means for …

Wearable activity trackers (wearables) embed numerous behaviour change techniques
(BCTs) that have previously been shown to increase adult physical activity (PA). With few …

Background: Commercial off-the-shelf activity trackers (eg, Fitbit) allow users to self-monitor
their daily physical activity (PA), including the number of steps, type of PA, amount of sleep …

Background: The prevalence of obesity in children and adolescents remains a global public
health issue. Wearable devices may offer new opportunities for prevention and intervention …

Background: Behavioral eHealth and mobile health interventions have been moderately
successful in increasing physical activity, although opportunities for further improvement …