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).