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. 2017 Jan 3;2017(1):CD010802. doi: 10.1002/14651858.CD010802.pub2

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
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
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
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