Comparing the effects of text messaging and mobile social networking on physical activity and anthropometric indices of middle-aged women: a randomized controlled trial

Table 3 The mean intensity of physical activity in two groups of text message and mobile social networking

Variable	Text message (N = 55)	Mobile social networking (N = 55)	P value for t-test	P value for repeated measure
Variable	Mean ± SD		P value for t-test	P value for repeated measure
Physical activity
Before intervention	1.92 ± 0.24	1.55 ± 0.01	0.07	< 0.001
4 weeks after intervention	2.38 ± 0.54	2.26 ± 0.57	0.008
8 weeks after intervention	2.71 ± 0.49	2.89 ± 0.64	0.001
12 weeks after intervention	2.99 ± 0.49	3.30 ± 0.49	0.001
P value	0.001	0.001
Energy expenditure during past week
Before intervention	205.4 ± 374.4	81.3 ± 90.62	0.19	< 0.001
4 weeks after intervention	382.5 ± 475.4	762.7 ± 676.9	0.001
8 weeks after intervention	475.7 ± 419.1	1196.5 ± 764.8	0.001
12 weeks after intervention	555 ± 518.9	1631.3 ± 828	0.001
P value	0.001	0.001

ISSN: 1472-6874