Table 3.
Total steps taken on each study day and exercise responses during each study day (n = 9).
| Variable | Low_PA | Middle_PA | High_PA | p | Low vs. Mid PA | Low vs. High PA | Mid vs. High PA |
|---|---|---|---|---|---|---|---|
| mean ± SD | mean ± SD | mean ± SD | 95% CI | 95% CI | 95% CI | ||
| Steps (day) | 275 ± 306 | 19,219 ± 2043 | 28,644 ± 1043 | <0.001 | 16,855, 21,033 | 27,323, 29,414 | 7104, 11,745 |
| Exercise Speeds (m/min) | - | 60 ± 13 | 120 ± 26 | <0.001 | - | 50, 70 | |
| Exercise intensity (%VO2 peak) | - | 21.6 ± 3.7 | 53.7 ± 10.4 | <0.001 | - | 11.8, 25.9 | |
| HR (beats/min) | 69 ± 6 | 93 ± 12 | 145 ± 12 | <0.001 | 15, 34 | 65, 87 | 39, 64 |
| RER during exercise | 0.859 ± 0.049 | 0.873 ± 0.046 | 0.862 ± 0.035 | 0.523 | −0.036, 0.065 | −0.027, 0.034 | −0.046, 0.024 |
| Total net Ex EE (kcal) | - | 344 ± 66 | 1261 ± 254 | <0.001 | - | 745, −1089 | |
| RPE | - | 7.6 ± 2.1 | 11.7 ± 1.7 | 0.001 | - | 2.3, 5.9 |
HR, heart rate; PA, physical activity; RER, respiratory exchange ratio; Ex EE, energy expenditure due to exercise; RPE, rating of perceived exertion. Total net Ex EE was calculated as Mid or High-PA EE minus Low-PA EE between 10:00 and 17:30, which included the periods of exercise.