Table 3.
Free-living physical activity energy expenditure and duration of adolescent girls who participated in the randomised crossover trial comparing seven days of breakfast consumption (BC) with seven days of breakfast omission (BO) 1.
| BC | BO | 95% CI for BC vs. BO 2 | |||||
|---|---|---|---|---|---|---|---|
| Wake–10:30 | 10:30–15:30 | 15:30–bed | Wake–10:30 | 10:30–15:30 | 15:30–bed | ||
| PAEE (kJ/d) | |||||||
| Sedentary | 54 (40–72) | 72 (60–85) | 60 (45––78) | 54 (41–72) | 73 (61–87) | 65 (48–87) | −12–5% |
| Light | 321 (233–442) | 342 (286–409) | 260 (194–349) | 321 (238–433) | 369 (309–441) | 264 (191–365) | −12–7% |
| Moderate | 168 (84–338) | 228 (142–366) | 152 (79–292) | 192 (99–372) | 257 (160–411) | 148 (73–300) | −24–13% |
| Vigorous | 12 (5–35) | 23 (11–47) | 16 (6–41) | 17 (6–44) | 37 (18–76) | 15 (5–41) | −40–4% |
| Total | 601 (417–868) | 712 (567–894) | 547 (389–770) | 666 (471–942) | 857 (682–1076) | 550 (379–797) | −18–1% |
| PA Duration (min/d) | |||||||
| Sedentary | 202 (170–241) | 189 (172–207) | 209 (178–245) | 196 (167–231) | 170 (155–187) | 205 (172–245) | 0–11% |
| Light | 67 (49–90) | 74 (64–86) | 59 (45–78) | 67 (50–89) | 81 (70–95) | 62 (46–84) | −13–5% |
| Moderate | 15 (7–30) | 19 (12–32) | 13 (7–25) | 17 (9–32) | 22 (13–35) | 13 (6–26) | −23–12% |
| Vigorous | 1.44 (0.79–2.63) | 2.14 (1.37–3.34) | 1.93 (1.09–3.42) | 1.73 (0.97–3.08) | 2.95 (1.89–4.61) | 1.78 (0.97–3.27) | −25–2% |
1. Based on natural log-transformed data with values presented as a geometric mean (95% confidence interval (CI)) adjusted for minutes of useable data, n = 15. 2. A total of 95% CI for the percentage difference of the geometric means between the experimental conditions using a condition by time-of-day linear mixed model adjusted for minutes of useable data and condition order. BC was the consumption of a standardised breakfast with an energy content equivalent to 25% of individual resting metabolic rate before 09:00 for seven consecutive days; BO was the abstinence from all energy-providing nutrients until at least 10:30 for seven consecutive days. PAEE, physical activity energy expenditure; PA, physical activity.