Haddad 2011.

Study characteristics
Methods	Study design: RCT Number randomized: 163; 53 to the yoga exercise group, 56 to the stretching exercise group, and 54 to the control group Study start and stop dates: not reported Length of intervention: 6 weeks Length of follow‐up: 1, 3, and 6 months
Participants	Type cancer: breast cancer, Stages 0 to III Time since cancer diagnosis: not reported Time in active treatment: not reported Inclusion criteria: breast cancer Stage 0 to III undergoing radiation therapy Eligibility criteria related to interest or ability, or both, to exercise: none reported Exclusion criteria: none reported Gender: female Current age, mean years: 51.9 years Age at cancer diagnosis: not reported Ethnicity/race: not reported Education level: not reported SES: not reported Employment status: not reported Comorbidities: not reported Past exercise history: not reported On hormone therapy: not reported
Interventions	53 participants assigned to the yoga exercise intervention 56 participants assigned to the stretching exercise intervention Type exercise (aerobic/anaerobic): aerobic or anaerobic yoga: aerobic stretching: anaerobic Intensity of the experimental exercise intervention: not reported Frequency: 3 times per week for either yoga or stretching Duration of individual sessions: not reported Duration of exercise program: 6 weeks Total number of exercise sessions: 18 sessions for either yoga or stretching Format: not reported Facility: unclear Professionally led: not reported Adherence: not reported 54 participants assigned to control group, including: waiting list Contamination of control group: not reported
Outcomes	No primary outcome was identified. QoL outcomes included: fatigue, assessed using the BFI depression, assessed using the CES‐D global QoL, assessed using the MOS SF‐36 and subscales benefit finding, assessed using the Benefit Finding spiritualty, assessed using the FACT‐Sp Outcomes were measured at baseline, end of treatment (6 weeks), 1, 3, and 6 months following end of treatment: yoga exercise group: n = 53 at baseline and all follow‐up visits stretching exercise group: n = 56 at baseline and all follow‐up visits control group: n = 54 at baseline and all follow‐up visits Subgroup analysis: not reported Adverse events: not reported
Notes	Country: unclear, investigators from US, India and Germany Funding: none reported Published conference abstract
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Unclear risk	Generation of allocation sequence was not described
Allocation concealment (selection bias)	Unclear risk	Whether the treatment assignment was concealed from study personnel and participants was not described
Blinding of participants and personnel (performance bias) All outcomes	High risk	Owing to the nature of the intervention, it was not possible to conceal allocation to the intervention from the participants
Blinding of outcome assessment (detection bias) All outcomes	High risk	Study personnel and outcome assessors were not masked or blinded to the study interventions
Incomplete outcome data (attrition bias) All outcomes	Unclear risk	Insufficient details provided to determine whether there was any attrition
Selective reporting (reporting bias)	Unclear risk	Insufficient details provided to assess whether there was selective outcome reporting
Other bias	Low risk	The trial appears to be free of other problems that could put it at a high risk of bias