Table 4 Results of quantitative measures
Measure | Pre-Intervention | Post-Intervention | t | p | Effect size |
|---|---|---|---|---|---|
| Â | Mean (SD) | Mean (SD) | Â | ||
Commitment to Exercise Scale | 3.23 (0.55) | 2.45 (0.56) | 8.00 | <  0.001 | 1.44 |
Compulsive Exercise Test | |||||
Avoidance and Rule-driven Behavior | 3.75 (1.06) | 2.64 (0.98) | 6.76 | <  0.001 | 1.04 |
  Weight Control Exercise | 3.29 (1.24) | 2.65 (1.07) | 4.17 | <  0.001 | 0.52 |
  Mood Improvement | 4.29 (0.78) | 3.33 (1.09) | 5.17 | <  0.001 | 1.23 |
  Lack of Exercise Enjoyment | 1.71 (1.27) | 1.92 (1.12) | −1.25 | n.s. |  |
  Exercise Rigidity | 3.83 (1.06) | 2.82 (1.03) | 4.26 | <  0.001 | 0.95 |
  Total score | 16.98 (3.88) | 13.39 (3.43) | 5.70 | <  0.001 | 0.93 |
BMI (kg/m2) of AN patients | 15.67 (1.54) | 16.35 (1.50) | −5.91 | <  0.001 | −0.44 |
Eating Disorder Inventory-2 | |||||
  Drive for Thinness | 12.81 (6.52) | 9.67 (6.36) | 5.62 | <  0.001 | 0.48 |
  Bulimia | 0.98 (1.71) | 0.54 (1.44) | 1.65 | n.s. |  |
  Body Dissatisfaction | 16.83 (7.16) | 15.96 (7.18) | 1.94 | n.s. |  |
  Perfectionism | 8.23 (4.44) | 6.83 (3.07) | 2.37 | 0.027 | 0.26 |
Beck Depression Inventory-II | 1.36 (0.55) | 1.16 (0.55) | 3.42 | 0.002 | 0.36 |
Brief Symptom Inventory (General Severity Index) | 1.37 (0.65) | 1.18 (0.61) | 2.42 | 0.024 | 0.29 |
Emotion Regulation Skills Questionnaire | |||||
  Acceptance of Emotions | 1.71 (0.89) | 2.26 (0.79) | −3.47 | 0.002 | −0.62 |
  Regulation of Emotions | 1.40 (0.82) | 1.49 (0.79) | −0.68 | n.s. |  |