Table 2

Phase two study variables categorized by sex
Males (N= 22) Females (N= 27)
Age (years) 20.8 ± 2.4 19.9 ± 1.8
VO2 peak (ml kg min-1)* 45.6 ± 9.0 36.7 ± 10.2
Self-efficacy for physical activity 46.5 ± 9.3 46.9 ± 9.5
Body fat percentage* 13.6 ± 5.4 22.4 ± 7.0
Total cell phone use (minutes day-1) 412.1 ± 389.7 408.7 ± 311.2
Texts sent per day 132.7 ± 208.6 305.2 ± 952.6
Calls made per day 5.6 ± 10.4 5.1 ± 5.6

All data are mean±SD.

*Indicates a significant difference between male and females (p ≤ 0.03).

Lepp et al.

Lepp et al. International Journal of Behavioral Nutrition and Physical Activity 2013 10:79   doi:10.1186/1479-5868-10-79

Open Data