Cadmus 2009.
Study characteristics | ||
Methods | Study design: RCT Number randomized: 75; 37 to the exercise group and 38 to the control group Study start and stop dates: March 2004 to July 2006 Length of intervention: 6 months Length of follow‐up: to end of the intervention |
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Participants | Type cancer: breast cancer, Stage 0 to IIIA Time since cancer diagnosis, mean (SD) weeks:
Time in active treatment: scheduled for chemotherapy or radiation therapy or within first 2 weeks of starting chemotherapy or radiation therapy Inclusion criteria:
Eligibility criteria related to interest or ability, or both, to exercise:
Exclusion criteria:
Gender: female Current age, mean (SD) years:
Age at cancer diagnosis: not reported Ethnicity/race, %:
Education level, %:
SES: not reported Employment status: not reported Comorbidities: not reported Past exercise history: not reported On hormone therapy:
BMI, mean (SD):
Body fat, mean (SD):
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Interventions | 25 participants assigned to the exercise intervention, including:
Type exercise (aerobic/anaerobic): unclear, up to the women's choice Intensity of the experimental exercise intervention: 60% to 80% of predicted maximal HR Frequency: 5 days per week Duration of individual sessions: 30 minutes Duration of exercise program: 6 months Total number of exercise sessions: 120 sessions Format: individual Facility: home Professionally led by "staff" Adherence, mean (SD) minutes of activity per week:
25 participants assigned to control group, including:
Contamination of control group: not reported |
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Outcomes | No primary outcome was identified. QoL outcomes included:
Outcomes were measured at baseline and 6 months:
Subgroups: HRQoL level at baseline, by weight loss, or body fat, or both Adverse events: none reported |
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Notes | Country: US Funding: Lance Armstrong Foundation, American Cancer Society, Susan G. Komen. National Institutes of Health |
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Risk of bias | ||
Bias | Authors' judgement | Support for judgement |
Random sequence generation (selection bias) | Low risk | Computer‐generated randomization code |
Allocation concealment (selection bias) | Low risk | "The randomization code was obtained by the principal investigator (who was not involved in recruitment or data collection) only after baseline measures for that individual had been completed and staff conducting clinic visits did not have access to the randomization program" |
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 | Low risk | ITT analysis performed and baseline values were carried forward for the 5 women who had missing 6‐month data |
Selective reporting (reporting bias) | Low risk | There appears to be no selective reporting of outcomes |
Other bias | Low risk | The trial appears to be free of other problems that could put it at a high risk of bias |