Table 1 Baseline characteristics of the intervention and reference group
|  | Intervention group (N = 246) | Reference group (N = 54) | F or χ 2 value |
|---|---|---|---|
Age, mean (SD) | 41.0 (8.8) | 42.8 (8.5) | 0.810 |
Gender, % female | 76 | 80 | 0.257 |
BMI (kg/m2), mean (SD) | 26.5 (4.4) | 26.0 (4.4) | 0.295 |
Living situation, % living together | 91 | 96 | 4.041 |
Education, % higher/university education | 88 | 84 | 1.112 |
SWA-based PA, mean (SD) | |||
Steps (n/day) | |||
 Weekdays | 9265.0 (3194.6) | 10006.2 (3766.2) | 3128 |
 Weekend days | 10092.3 (4181.5) | 9597.3 (4506.6) | 1.206 |
 Average days | 9501.4 (3088.2) | 9889.4 (3478.8) | 0.988 |
Sedentary time (min/day) (≤1.8 MET) | |||
 Weekdays | 1049.5 (130.7) | 1005.2 (172.9) | 4.495* |
 Weekend days | 1005.8 (147.7) | 998.8 (180.5) | 1.758 |
 Average days | 1036.5 (118.4) | 1003.4 (154.6) | 3.385 |
Light PA (min/day) (>1.8- < 3 MET) | |||
 Weekdays | 63.7 (40.9) | 72.5 (49.8) | 3.998 |
 Weekend days | 93.6 (62.9) | 99.8 (63.1) | 0.000 |
 Average days | 72.3 (42.2) | 81.8 (49.4) | 1.797 |
Moderate PA (min/day) (>3- < 6 MET) | |||
 Weekdays | 34.0 (29.0) | 44.1 (46.8) | 6.493 |
 Weekend days | 52.0 (49.6) | 51.2 (66.3) | 2.587 |
 Average days | 40.6 (33.5) | 46.6 (51.1) | 4.757 |
Vigorous PA (min/day) (≥6 MET) | |||
 Weekdays | 1.7 (3.8) | 3.1 (6.9) | 16.025 |
 Weekend days | 1.4 (4.2) | 0.7 (3.6) | 3.358 |
 Average days | 1.6 (3.4) | 2.4 (5.2) | 7.422 |
MVPA (min/day) (≥3 MET) | |||
 Weekdays | 39.2 (34.4) | 51.6 (50.8) | 5.761* |
 Weekend days | 57.8 (56.6) | 52.7 (67.5) | 0.774 |
 Average days | 44.6 (36.3) | 52.4 (53.2) | 5.936 |
Self-reported PA, mean (SD) | |||
 Sitting week (min/day) | 561.0 (161.0) | 508.1 (151.7) | 0.003* |
 Sitting weekend (min/day) | 347.4 (159.7) | 300.8 (134.6) | 3.105 |
 Walking (min/day) | 106.1 (145.2) | 155.4 (180.7) | 3.187* |
 Moderate PA (min/day) | 42.6 (66.8) | 47.1 (67.5) | 0.353 |
 Vigorous PA (min/day) | 25.2 (43.8) | 31.2 (42.9) | 0.361 |
 Total PA (min/day) | 191.7 (220.1) | 237.0 (205.3) | 0.101 |
Psychological need satisfaction, mean (SD) | |||
 Autonomy | 3.1 (0.8) | 3.2 (0.9) | 1.916 |
 Competence | 2.8 (0.7) | 2.8 (0.8) | 1.860 |
 Relatedness | 3.0 (1.1) | 3.1 (1.0) | 0.158 |
 Total needsa | 3.0 (0.7) | 3.0 (0.7) | 0.735 |
Exercise-related motivation, mean (SD) | |||
 Amotivation | 4.6 (0.5) | 4.6 (0.5) | 0.144 |
 Controlled motivationb | 2.4 (0.6) | 2.3 (0.6) | 0.436 |
 Autonomous motivationc | 3.9 (0.6) | 4.0 (0.6) | 0.377 |