RESUMO
BACKGROUND: There are thousands of fitness-related smartphone applications ("apps") available for free and purchase, but there is uncertainty if these apps help individuals achieve and maintain personal fitness. Technology usage attrition is also a concern among research studies on health technologies. METHODS: Usage of three fitness apps was examined over 5 months to assess adherence and effectiveness. Initially, 64 participants downloaded three free apps available on Android and iOS and 47 remained in the study until posttest. With a one group pre-posttest design and checkpoints at months 1, 3, and 5, exercise and exercise with fitness apps were examined in the framework of the Theory of Planned Behavior (TPB) using a validated survey. Apps were selected based on their function from the Functional Triad. Perceived fitness was also measured. T-tests, sign tests, Fisher's exact tests, and linear and logistic regression were used to compare pre to posttests and users to non-users of the apps. RESULTS: Forty-seven participants completed both pre and posttests. Individual item scores indicated no significant change pre to posttest except for decreases observed in usefulness of using apps for exercise (attitude) (-0.78, P<0.01), peer influence on exercise (subjective norm) (-0.51, P<0.05), peer influence on exercise with apps (subjective norm) (-1.02, P<0.01), perceived difficulties in exercising with apps (perceived behavioral control) (-1.29, P<0.001), and the expected frequency of exercise with apps over the next 2 weeks (behavioral intention) (P<0.0001 in a sign test). Subscale total scores indicated significant decreases in subjective norm regarding exercise (-0.72, P<0.05), subjective norm regarding exercise with apps (-1.72, P<0.01), and perceived behavioral control over exercising with apps (-2.56, P<0.01) between pre and posttest. When comparing app users (n=32) to non-users (n=15), there was only a significant difference in subscale total scores at posttest for attitude toward exercising using apps, which was significantly more favorable among users than non-users (32.3 vs. 27.6, P<0.05). Fitness perception did not change over 5 months regarding cardiovascular fitness, strength, endurance, flexibility, or body composition. Technology usage attrition was desirable at 31.9%. CONCLUSIONS: App usage and effectiveness appears to have a connection to usefulness (attitude) and to perceived difficulties of exercising using apps (perceived behavioral control). Exercise and exercise using apps are not influenced by peer influence (subjective norm). Intention to exercise using these particular apps decreased (behavioral intention). Those who utilized the apps were more likely to have a positive attitude about the apps. Usefulness and perceived difficulties in particular should be considered with future app development. App usefulness and ease of use may be facilitated by using health behavior theories to guide development.
RESUMO
Public awareness about traumatic stress is needed to address trauma as a public health issue. News media influence public awareness, but little is known about how traumatic-related disorders are portrayed in the news. A content analysis was conducted of all articles that mentioned posttraumatic stress disorder (PTSD) in The New York Times between 1980-2015. There were 871 articles analyzed. The number of PTSD articles published annually increased dramatically, from 2 in 1980 to 70 in 2014. Overall, 50.6% of articles were focused on military populations. Combat was identified as the trauma exposure in 38.0% of articles, while sexual assault was identified in 8.7%. Negative themes such as crimes perpetrated by people with possible PTSD (18.0%) and substance abuse (11.5%) were prominent, substance abuse being more prevalent in articles focused on military populations (16.4% vs. 6.3%, p = <.001). Only 9.1% of articles mentioned PTSD treatment options and this theme became less prevalent over time-ranging from 19.4% of articles published between 1980-1995 to just 5.7% of articles published between 2005-2015 (p = <.001). Results suggest that public awareness of PTSD has increased, but may be incomplete, inaccurate, and perpetuate PTSD stigma at individual- and institutional-levels. These findings can inform advocacy strategies that enhance public awareness about PTSD and traumatic stress. (PsycINFO Database Record
