Effectiveness of Facebook-Delivered Lifestyle Counselling and Physical Activity Self-Monitoring on Physical Activity and Body Mass Index in Overweight and Obese Adolescents: A Randomized Controlled Trial
Table 2
Measurements at baseline (pre) and after 12 weeks (post) and changes (post-pre) in the body mass index (BMI), weight, height, and objectively measured physical activity. Mean values (standard deviation).
Measure
Fb + Act
Fb
Control
Pre
Post
Post-pre
Pre
Post
Post-pre
Pre
Post
Post-pre
( = 15)
( = 14)
( = 14)
( = 16)
( = 16)
( = 16)
( = 15)
( = 14)
( = 14)
BMI
29.8 (8.0)
28.5 (6.8)
−0.1 (0.9)
27.5 (4.2)
26.9 (4.2)
−0.6 (0.9)
27.0 (3.8)
26.9 (4.2)
−0.0 (0.9)
Height, cm
166 (8.8)
167 (9.7)
1.0 (0.9)
166 (7.3)
167 (7.4)
0.7 (0.6)
162 (6.8)
163 (7.3)
0.5 (1.7)
Weight, kg
83.0 (26.6)
80.7 (25.5)
0.9 (2.9)
76.5 (15.5)
75.3 (15.0)
−1.2 (2.4)
71.3 (12.8)
71.2 (13.9)
0.4 (1.8)
Objectively measured physical activity
Valid measurement days
Weekdays
13.3 (0.5)
11.8 (0.9)
−1.5 (0.4)
13.9 (0.1)
13.1 (0.6)
−0.5 (0.4)
13.3 (0.4)
12.4 (0.6)
−0.9 (0.7)
Weekend days
5.4 (0.4)
4.9 (0.5)
−0.5 (0.4)
5.8 (0.2)
5.1 (0.3)
−0.7 (0.2)
5.3 (0.3)
5.1 (0.6)
−0.2 (0.6)
Total
18.7 (0.8)
16.7 (1.3)
−1.9 (1.0)
16.7 (0.3)
18.4 (0.6)
−1.3 (0.5)
18.6 (0.7)
16.2 (1.2)
−2.4 (1.4)
Sedentary time or very light PA, min/day
Weekdays
669.9(74.6)
560.9 (136.7)
−106.9 (114.8)
673.1 (97.2)
624.2 (105.3)
−48.9 (78.2)
704.7 (67.1)
654.4 (61.1)
−60.1 (46.2)
Weekend days
654.2 (110.7)
608.4 (108.1)
−49.4 (123.6)
656.3 (121.8)
612.4 (102.5)
−43.9 (113.6)
655.2 (71.5)
627.1 (84.6)
−37.7 (114.3)
Total
665.6 (74.7)
570.6 (119.5)
−94.5 (112.7)
668.3 (101.5)
619.5 (101.6)
−48.7 (76.9)
691.0 (66.0)
642.0 (53.5)
−58.7 (60.2)
Light PA, min/day
Weekdays
234.0 (53.4)
274.4 (70.2)
38.0 (50.5)
251.1 (67.3)
273.3 (65.5)
22.2 (47.5)
210.0 (52.8)
240.3 (33.3)
23.4 (43.3)
Weekend days
201.3 (69.1)
256.2 (80.2)
50.7 (44.0)
223.9 (77.7)
234.4 (54.5)
10.4 (59.6)
189.1 (57.4)
232.2 (50.9)
38.9 (57.7)
Total
224.8 (55.3)
259.7 (82.3)
32.0 (51.7)
243.4 (67.0)
258.9 (57.3)
15.5 (38.6)
204.1 (50.9)
240.0 (31.9)
30.4 (38.7)
Moderate PA, min/day
Weekdays
56.7 (20.1)
61.4 (24.6)
3.2 (20.5)
59.7 (20.1)
58.5 (23.9)
−1.2 (23.6)
48.3 (15.1)
47.6 (15.4)
−1.8 (13.7)
Weekend days
43.3 (19.1)
54.3 (16.8)
9.7 (28.6)
50.4 (24.1)
56.1 (21.3)
5.5 (18.2)
38.1 (26.4)
43.2 (15.7)
11.3 (20.0)
Total
42.4 (18.9)
57.1 (21.5)
2.8 (20.1)
56.9 (19.6)
57.6 (21.7)
0.7 (18.0)
45.4 (13.1)
45.2 (12.3)
0.7 (14.6)
Vigorous PA, min/day
Weekdays
16.2 (10.0)
16.6 (12.0)
−0.2 (8.4)
17.4 (10.1)
16.9 (10.7)
−0.5 (9.7)
10.8 (5.8)
9.9 (5.1)
−0.7 (5.8)
Weekend days
12.3 (6.7)
16.4 (10.8)
3.6 (13.9)
15.3 (12.6)
18.9 (12.5)
3.6 (12.0)
7.3 (8.2)
9.9 (7.0)
4.5 (6.4)
Total
15.1 (8.8)
15.6 (10.3)
−0.0 (8.8)
16.8 (10.4)
17.8 (10.5)
1.0 (9.2)
9.8 (5.4)
9.7 (5.3)
0.6 (4.7)
Vigorous plus PA, min/day
Weekdays
4.7 (5.3)
4.7 (3.9)
−0.1 (4.4)
5.5 (5.3)
5.8 (7.3)
0.3 (5.6)
2.9 (3.7)
2.1 (2.1)
−0.8 (3.9)
Weekend days
3.2 (3.4)
3.6 (3.0)
0.5 (4.8)
4.8 (5.1)
7.3 (7.0)
2.5 (6.0)
1.5 (3.1)
2.1 (2.9)
1.0 (4.1)
Total
4.3 (4.4)
4.0 (3.3)
−0.4 (3.8)
5.3 (4.9)
6.8 (7.2)
1.6 (4.4)
2.4 (3.7)
2.2 (1.9)
−0.2 (3.2)
MVPA, min/day
Weekdays
77.7 (32.2)
82.5 (39.3)
2.7 (28.3)
82.5 (30.5)
81.8 (36.5)
−1.4 (31.9)
61.9 (20.9)
59.6 (36.5)
−3.3 (20.8)
Weekends
58.4 (26.6)
74.1 (28.8)
14.0 (44.7)
70.3 (38.9)
81.9 (36.1)
11.6 (32.7)
46.8 (35.7)
55.2 (23.7)
16.9 (26.7)
Total
72.0 (29.2)
76.8 (33.6)
2.7 (29.4)
78.9 (31.2)
82.1 (34.2)
3.1 (26.9)
57.6 (18.6)
57.3 (18.0)
1.3 (20.3)
Wearing time, min/day
Weekdays
945.7 (69.1)
919.3 (139.9)
13.4 (90.5)
975.5 (58.8)
1020.4 (69.4)
50.5 (45.5)
974.4 (107.7)
1008.0 (80.8)
16.1 (83.2)
Weekends
914.86 (129.3)
1012.4 (90.7)
87.7 (145.1)
950.6 (70.2)
967.7 (72.2)
55.6 (71.3)
889.1 (96.2)
969.7 (94.9)
75.3 (129.6)
Total
965.7 (81.9)
983.6 (134.0)
13.0 (109.8)
960.1 (57.3)
1038.0 (68.5)
47.5 (44.3)
951.5 (96.5)
997.2 (79.0)
31.4 (94.0)
Sedentary time or very light PA as % of wearing time
Weekdays
68 (6.4)
56 (10.6)
−11.9 (9.8)
67 (8.3)
59 (10.2)
−7.6 (7.5)
73 (4.4)
65 (4.7)
−7.2 (4.0)
Weekends
72 (8.0)
60 (8.8)
−11.3 (10.3)
69 (10.8)
61 (9.8)
−8.0 (9.7)
74 (6.3)
65 (7.0)
−9.9 (8.0)
Total
69 (6.1)
58 (10.6)
−10.4 (9.6)
67 (8.7)
60 (9.6)
−7.6 (7.1)
73 (4.2)
64 (4.1)
8.2 (4.0)
PA: physical activity, MVPA: moderate to vigorous physical activity, and difference between Fb + Act and control group at posttest .
