Background: Mobile Internet-connected electronic devices provide access to activities that have traditionally been associated with sedentary behavior. Because they are portable, these devices can be utilized in any environment. Therefore, providing children with access to these devices in environments that typically promote physical activity may result in a reduction in physical activity behavior. Purpose: To assess children’s physical and sedentary (ie, sitting) activity with and without the presence of a mobile Internet-connected tablet computer. Methods: A total of 20 children [6.7 (1.9) y old] participated in 2 simulated recess conditions in a gymnasium on separate days. During each condition, children had free-choice access physical activity options and a table of sedentary activities for 40 minutes. During 1 session, the iPad was present, and in the other session, it was not. Physical activity was monitored via an accelerometer, and sedentary time was monitored via a stopwatch. Results: Children significantly (P ≤ .03) reduced average physical activity intensity and increased their sedentary behavior with the iPad present [4.4 (4.0) metabolic equivalents/min and 20.9 (12.4) min sitting] versus the condition without the iPad present [5.3 (4.0) metabolic equivalents/min and 13.6 (13.2) min sitting]. Conclusion: Introducing an mobile Internet-connected tablet computer into a gymnasium reduced children’s physical activity intensity by 17% and increased sedentary behavior by 54%.
Mallory S. Kobak, Andrew Lepp, Michael J. Rebold, Hannah Faulkner, Shannon Martin and Jacob E. Barkley
Tanya McGuane, Stephen Shannon, Lee-Ann Sharp, Martin Dempster and Gavin Breslin
Horse racing requires jockeys to weigh in prior to each competition, with failure automatically excluding the jockey from competition. As such, many jockeys frequently employ long- and short-term “wasting” weight-loss techniques that can be harmful to health. This study aimed to explore jockeys’ social norms and experiences regarding wasting and the effects of wasting on their mental health. Six professional jockeys with a minimum of 2 years professional riding experience were recruited from a range of stud-racing yards in Ireland. From individual participant interviews, an interpretative-phenomenological-analysis approach revealed four themes: “Day in, day out,” “Horse racing is my life,” “You just do what you have to do,” and “This is our world.” Themes were interpreted through social-identity theory, which highlighted how wasting is an acceptable in-group norm among jockeys, irrespective of relationship problems and mental health consequences. Recommendations are offered for intervening to support jockeys’ mental health.