Table 1.
Outcomes
| Aerobic Exercise | Health Education | ||||
|---|---|---|---|---|---|
| n | M (SD) or Median | n | M (SD) or Median | Effect Size (d)* | |
| OCD Severity (Y-BOCS) | |||||
| Baseline | 28 | 26.2 (5.32) | 28 | 23.5 (4.94) | 0.36 |
| Intervention Week 3 | 27 | 21.3 (6.21) | 26 | 20.1 (6.82) | 0.07 |
| Intervention Week 6 | 24 | 20.0 (6.75) | 25 | 19.2 (7.25) | 0.10 |
| Intervention Week 9 | 23 | 20.9 (7.23) | 24 | 19.4 (6.06) | 0.36 |
| Post-treatment | 23 | 19.4 (6.40) | 26 | 19.9 (6.43) | −0.17 |
| Anxiety (BAI) | |||||
| Baseline | 28 | 20.4 (12.33) | 27 | 13.0 (7.48) | 0.54 |
| Post-treatment | 21 | 13.3 (11.39) | 26 | 10.2 (9.16) | 0.38 |
| Depression (BDI) | |||||
| Baseline | 28 | 26.2 (14.55) | 26 | 19.9 (14.56) | 0.22 |
| Post-treatment | 22 | 18.1 (16.27) | 27 | 15.5 (13.97) | 0.12 |
| Average Min of Exercise/Week | |||||
| Baseline | 28 | 85.0 (216.96) | 28 | 71.5 (141.90) | 0.05 |
| Post-treatment | 21 | 133.1 (68.14) | 27 | 96.3 (117.75) | 0.58 |
| VO2 Peak | |||||
| Baseline | 22 | 26.4 (7.36) | 24 | 27.0 (7.61) | 0.10 |
| Post-treatment | 16 | 31.7 (9.36) | 21 | 28.5 (7.49) | 0.44 |
Reported means and standard deviations are based on raw, untransformed scores. Between group effect sizes at each timepoint were calculated using the difference between model estimated means (AE-HE) divided by the pooled, weighted standard deviation of baseline raw scores of the dependent variable (Cohen, 1988; Feingold, 2013).