Abstract
Background: Obesity is a global epidemic. Behavioral change approaches towards improving nutrition, increasing physical activity level, improving sleep, and reducing sitting time are recommended as best practices in adolescent obesity management. However, access to evidence-based treatment is limited and portable technologies such as mobile apps may provide a useful platform to deliver such lifestyle interventions. No evidence-based validated app exists for obesity intervention; therefore, a novel mobile app (Reactivate) was developed for use in the Temple Street W82GO Healthy Lifestyles Program (W82GO). Objective: This study aimed to test the usability (technical effectiveness, efficiency, and user satisfaction) of the Reactivate mobile app in obese adolescents. Methods: Ten adolescents (7 males and 3 females, aged 12-17 years) who had been treated for obesity (>98th percentile for body mass index) at the Temple Street Children's University Hospital were recruited. Participants were given 8 tasks to complete in order to test the technical effectiveness of the app. A research assistant timed the user while completing each task in order to test the relative user efficiency of the app (time-on-task). The tasks fell into 5 categories and required the user to enter personal settings, find and answer surveys, create a message, use the goal setting feature, and enter details regarding their weight and height. In exploration of user satisfaction, each participant completed the standardized software usability measurement inventory (SUMI), which measures 5 aspects of user satisfaction: efficiency, effect, helpfulness, controllability, and learnability. Descriptive statistics were used to explore the mean relative user efficiency and SUMI scores. Results: Mean age was 14.26 (SD 1.58) years. All adolescents completed each of the tasks successfully. The mean relative user efficiency scores were two to three times that of an expert user. Users responded that they would use Reactivate to monitor their growth over time, for motivation, and for goal setting. All users described Reactivate as an important mobile app. Conclusions: Our study describes the usability of a mobile app used in adolescent obesity management. Adolescents found Reactivate easy to use and their SUMI results indicated that the app scored high on user satisfaction. Usability testing is an important step towards refining the development of the Reactivate app, which can be used in the treatment of obesity. The study on the clinical efficacy of the Reactivate app is currently underway. [JMIR Mhealth Uhealth 2014;2(2):e29]
Highlights
The 4th European Congress of the ER-WCPT / Physiotherapy 102S (2016) eS43–eS65 discrimination and negative perceptions that might be held by others
Relevance: This paper presents the results of a research study carried out with the intention to inform physiotherapists on the optimal duration of cold therapy at the ankle in order to maximise the impact on practice of decisions by physiotherapists for their patients/clients
Significant decreases in temperature were obtained for participants undergoing the ice bag (F = (10,31) = 661.04, p ≤ .001) and the local immersion (F = (10,28) = 217.36, p ≤ .001) techniques
Summary
The 4th European Congress of the ER-WCPT / Physiotherapy 102S (2016) eS43–eS65 discrimination and negative perceptions that might be held by others. Non-disclosure is a barrier to the provision of reasonable adjustment. Impact and implications: Lack of reasonable adjustment related to non-disclosure or failure to provide reasonable adjustment is a potential issue for those with SpLD. It may be that career progression/success in funded CPD opportunities is impeded because some with SpLD do not have access to reasonable adjustment/assistive technology
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