Table 3. Changes in Secondary Outcomes at Baseline and Post-test.
| Self-reportedSedentary Behavior N = 23 |
Pre-test Mean (SD) | Post-test Mean (SD) | p-value | Effect size (d) a |
|---|---|---|---|---|
| TV (hours/day) | 3.04 (1.93) | 3.33 (2.41) | .49 | .13 |
| Computer (hours/day; N = 22) | 2.91 (2.65) | 2.01 (1.64) | .08 | .39 |
| Week day sitting (hours/day) | 8.38 (2.54) | 6.57 (2.89) | .01 | .66 |
| Weekend day sitting (hours/day) | 7.48 (2.50) | 6.52 (2.80) | .02 | .36 |
|
Actigraph N = 22 |
||||
| Sedentary time(hours/day) | 9.55 (1.74) | 9.17 (1.78) | .02 | .22 |
| Sedentary time (% of day) | .67 (.09) | .64 (.10) | .02 | .29 |
| Sedentary Breaks Per Day | 75.51 (16.12) | 78.50 (12.68) | .30 | .20 |
| Light activity (% of day) | .31 (.08) | .34 (.09) | .02 | .30 |
| Light PA (hours/day) | 4.41 (1.14) | 4.77 (1.18) | .05 | .31 |
| Moderate-to-vigorous PA (hours/week) | 1.59 (1.90) | 2.02 (2.64) | .03 | .10 |
|
Short Physical Performance Battery N = 23 |
||||
| Chair stands (seconds) | 11.26 (3.36) | 10.91 (2.77) | .46 | .11 |
| Gait speed (seconds) | 3.80 (.64) | 3.38 (.64) | .01 | .52 |
| SPPB total score | 10.52 (1.73) | 10.74 (1.57) | .37 | .14 |
|
BMI (N = 23) (kg/m2) |
34.07 (4.85) | 33.97 (4.74) | .53 | .02 |
|
Weight (N = 23) (pounds) |
204.64 (29.85) | 203.37 (29.73) | .07 | .04 |
| PHQ-8 score (N = 20)b | 3.10 (2.63) | 2.10 (2.20) | .03 | .37 |
| Quality of life- Mental health (N = 23) | 51.97 (8.06) | 52.24 (8.89) | .84 | .03 |
| Quality of life- Physical health (N = 23) | 48.86 (6.80) | 48.90 (7.59) | .97 | .01 |
a
Effect sizes of .20 are considered small, .50 medium, and .80 large
b
Due to non-normality, the natural log transform of the PHQ8 was analyzed for significance tests. Means and standard deviations are in the standard metric.