Table 2.
Mean accelerometer data (n = 25), based on valid days
| One week before surgery (T0) | One week after surgery (T1) | Three weeks after surgery (T2) | Five weeks after surgery (T3) | P-value for time trend ‡ | |
|---|---|---|---|---|---|
| Mean min/day wear time per day (SD) | 869 (64.18) | 709 (109.71)* | 815 (71.62)* | 822 (71.72)* | <0.001 |
| Mean number of valid days per week (SD) † | 6.24 (1.10) | 5.76 (1.16) | 6.16 (1.03) | 6.20 (0.96) | 0.175 |
| Mean min/day sedentary physical activity (SD) | 548 (101.67) | 554 (83.62) | 549 (78.49) | 534 (91.81) | 0.674 |
| Mean min/day light physical activity intensity (SD) | 294 (85.86) | 148 (76.98)* | 248 (94.89)* | 268 (85.70)* | <0.001 |
| Mean min/day moderate physical activity intensity (SD) | 26.08 (19.23) | 6.53 (8.93)* | 17.76 (15.16)* | 19.47 (14.94) | <0.001 |
| Mean min/day vigorous physical activity intensity (SD) | 1.02 (2.30) | 0.08 (0.28) | 0.41 (1.19) | 0.31 (1.31) | 0.089 |
| Mean min/day moderate and vigorous physical activity intensity (MVPA) (SD) | 27.10 (19.46) | 6.61* (9.08) | 18.17* (15.53) | 19.78 (14.94) | <0.001 |
| Mean step count per day (SD) | 7634 (3343.25) | 2775* (1815.71) | 5912* (3134.72) | 6464* (2781.38) | <0.001 |
* significant different compared to T0 (Bonferroni corrected p-value < 0.05)
† A valid day was defined as having a minimum of 10 h per day wear time, except for the first week after surgery (T1) when a valid day was defined as 6 h of wear time per day
‡ The p-values indicate whether the values of each measuring week differ significantly from each other