Vardar Yağlı 2015.
Methods | Randomised controlled trial | |
Participants | Women with diagnosed unilateral non‐metastatic breast cancer who had completed treatment at least 3 years before Recruited from a rehabilitation unit Mean age 48.6 years N = 52 |
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Interventions | • Yoga (yoga postures, breathing techniques, meditation), 6 weeks, 3 times a week for 60 minutes plus aerobic exercise, 6 weeks, 3 times a week for 60 minutes • Aerobic exercise, 6 weeks, 3 times a week for 60 minutes |
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Outcomes | Health‐related quality of life (European Organisation of Research and Treatment of Cancer QLQ‐30) at week 6 Fatigue (Fatigue Severity Scale) at week 6 Insomnia (European Organisation of Research and Treatment of Cancer QLQ‐30) at week 6 |
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Notes | Power analysis was performed post hoc according to the primary outcome (6MWT) but revealed that the study had sufficient power (85%) to support our conclusions. | |
Risk of bias | ||
Bias | Authors' judgement | Support for judgement |
Random sequence generation (selection bias) | Unclear risk | No information on random sequence generation |
Allocation concealment (selection bias) | Low risk | "The randomization procedures were performed by an independent person who selected a random envelope from a box with sealed envelopes." |
Blinding of participants and personnel (performance bias) All outcomes | Unclear risk | No information on blinding |
Blinding of outcome assessment (detection bias) All outcomes | Unclear risk | No information on blinding |
Incomplete outcome data (attrition bias) All outcomes | High risk | 25% attrition in yoga group; 21% attrition in control group at end of week 6 |
Selective reporting (reporting bias) | Low risk | No protocol available but no hint of selective reporting |
Other bias | Low risk | No hint of other bias |