UNASSIGNED: Web-based physical activity interventions often fail to reach the anticipated public health impact due to insufficient use by the intended audiences.
UNASSIGNED: The purpose of this study was to use a human-centered design process to optimize the user experience of the Interrupting Prolonged sitting with ACTivity (InPACT) at Home website to promote youth physical activity participation.
UNASSIGNED: Qualitative interviews were conducted to assess engagement and pain points with the InPACT at Home website. Interview data were used to create affinity maps to identify themes of user responses, conduct a heuristic evaluation according to Nielsen\'s usability heuristics framework, and complete a competitive analysis to identify the strengths and weaknesses of competitors who offered similar products.
UNASSIGNED: Key themes from end user interviews included liking the website design, finding the website difficult to navigate, and wanting additional features (eg, library of watched videos). The website usability issues identified were lack of labeling and categorization of exercise videos, hidden necessary actions and options hindering users from decision-making, error-prone conditions, and high cognitive load of the website. Competitive analysis results revealed that YouTube received the highest usability ratings followed by the Just Dance and Presidential Youth Fitness Program websites.
UNASSIGNED: Human-centered design approaches are useful for bringing end users and developers together to optimize user experience and impact public health. Future research is needed to examine the effectiveness of the InPACT at Home website redesign to attract new users and retain current users, with the end goal of increasing youth physical activity engagement.

Both mobile apps and responsive-design websites (web apps) can be used to deliver mobile health (mHealth) interventions, but it can be difficult to discern which to use in research. The goal of this paper is to present four case studies from behavioral interventions that developed either a mobile app or a web app for research and present an information table to help researchers determine which mobile option would work best for them. Four behavioral intervention case studies (two developed a mobile app, and two developed a web app) presented include time, cost, and expertise. Considerations for adopting a mobile app or a web app-such as time, cost, access to programmers, data collection, security needs, and intervention components- are presented. Future studies will likely integrate both mobile app and web app modalities. The considerations presented here can help guide researchers on which platforms to choose prior to starting an mHealth intervention.

OBJECTIVE: Prostate cancer patients, as well as their caregivers and healthcare providers, often search the Internet for information about treatment options. We aimed to assess how accurate and up-to-date information about prostate cancer treatments is on websites owned and managed by health-related organizations that most patients and health care providers would consider to be the most trustworthy, based on the reputations of the site providers.
METHODS: We reviewed 43 noncommercial and easily found websites that offered extensive information on treatment options for prostate cancer patients. To assess how comprehensive the sites were, we focused on the information they provided on alternative hormonal therapies to commonly prescribed luteinizing hormone-releasing hormone (LHRH) agonists, namely GnRH antagonists and parenteral estradiol.
RESULTS: Only 14 of 43 websites presented GnRH antagonists as a therapy option for prostate cancer. Sixteen of these 43 websites presented estrogen as a possible treatment option, but only 1 of the 43 websites contained current information on parenteral estrogen treatments. Less than half of the sites provided time stamps indicating when they were last updated. Furthermore, most sites with time stamps were not in fact up-to-date based on the information posted on the site.
CONCLUSIONS: Few seemingly reputable Internet sources for medical information provide viewers with the detailed and up-to-date information that they may expect from such sites when searching for alternatives to standard treatment for androgen suppression. Strategies for keeping such websites up-to-date and reliable are discussed. Sites may improve their credibility and usefulness if they (1) present all evidence-based treatment options, (2) regularly update and time stamp their information, (3) acknowledge that their recommendations on treatments may become out-of-date quickly, (4) and direct viewers to information on relevant, active clinical trials. Maintaining high quality sites may ultimately depend on users taking the initiative to inform website owners when their sites are out-of-date.