Cell phone use predicts being an "active couch potato": results from a cross-sectional survey of sufficiently active college students.

Objective: "Active couch potato" describes an individual who is sufficiently physically active yet highly sedentary. Cell phones promote activities understood as sedentary behaviors (e.g. watching videos). Research demonstrates that cell phone use is positively associated with sedentary behavior. Although sedentary behavior typically displaces physical activity, no relationship between cell phone use and physical activity has been found. Thus, it is possible that some sufficiently active individuals are also high-frequency cell phone users and therefore highly sedentary. In other words, cell phone use may predict being an "active couch potato" among active people. Testing this hypothesis was the purpose of this study. "Active couch potatoes" are of concern as the negative effects of excessive sedentary behavior are independent of the benefits of physical activity.

Methods: College students (228) completed validated surveys assessing physical activity, sedentary behavior, and cell phone use. Using a previously validated method, participants were rated as sufficiently active or not based upon their physical activity survey score. Participants who were not sufficiently active were excluded from further analysis resulting in a final sample of 171. These sufficiently active individuals were categorized as "active couch potatoes" if they were also highly sedentary (i.e. sitting for eight or more hours/day). Logistic regression determined if cell phone use predicted being categorized as an "active couch potato."

Results: Cell phone use was a significant, positive predictor of being an "active couch potato." With each additional hour of daily cell phone use, the odds of becoming an "active couch potato" increased by 11.4% (Wald = 5.934,  = 0.015, Exp(B) = 1.114). On average, active couch potatoes used their cell phone 1.7 hours more each day than their sufficiently active but not overly sedentary peers.

Conclusion: Increased cell phone use was a significant predictor of being an "active couch potato." Explanations and implications are discussed.