Skip to main content
. 2012 Aug 15;2012(8):CD008465. doi: 10.1002/14651858.CD008465.pub2

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
Participants Type cancer: breast cancer, Stage 0 to IIIA
Time since cancer diagnosis, mean (SD) weeks:
  • exercise group: 11.1 (4.5) weeks

  • control group: 11.0 (5.2) weeks


Time in active treatment: scheduled for chemotherapy or radiation therapy or within first 2 weeks of starting chemotherapy or radiation therapy
Inclusion criteria:
  • pre‐ or postmenopausal

  • 35 to 75 years old


Eligibility criteria related to interest or ability, or both, to exercise:
  • physically able to exercise

  • physician consent to begin an exercise program


Exclusion criteria:
  • diagnosis of recurrent or other primary cancer event

  • current smoker


Gender: female
Current age, mean (SD) years:
  • exercise group: 54.5 (8.2) years

  • control group: 54.0 (10.9) years


Age at cancer diagnosis: not reported
Ethnicity/race, %:
  • exercise group: non‐Hispanic white, 96%

  • control group: non‐Hispanic white, 92%


Education level, %:
  • exercise group: college degree or higher, 68%

  • control group: college degree or higher, 72%


SES: not reported
Employment status: not reported
Comorbidities: not reported
Past exercise history: not reported
On hormone therapy:
  • exercise group, 56%

  • control group, 68%


BMI, mean (SD):
  • exercise group: 27.9 (5.3)

  • control group: 27.5 (5.4)


Body fat, mean (SD):
  • exercise group: 36.7% (5.9%)

  • control group: 38.0% (6.1%)

Interventions 25 participants assigned to the exercise intervention, including:
  • home‐based supervised exercise program with weekly telephone calls, information, heart monitor, activity logs


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:
  • 144 (75) minutes compared with target of 150 minutes with 64% meeting goal


25 participants assigned to control group, including:
  • usual exercise


Contamination of control group: not reported
Outcomes No primary outcome was identified. QoL outcomes included:
  • happiness, assessed using the 2‐item Fordyce Happiness Measure

  • self‐esteem, assessed using the Rosenberg Self‐Esteem Scale

  • depression, assessed using the CES‐D scale

  • anxiety, assessed using the STAI

  • stress, assessed using the Cohen's 10‐item Perceived Stress Scale

  • QoL, assessed using FACT‐B

  • QoL, assessed using the MOS SF‐36


Outcomes were measured at baseline and 6 months:
  • exercise group: n = 25 at baseline, n = 22 at 6 months

  • control group: n = 25 at baseline, n = 23 at 6 months


Subgroups: HRQoL level at baseline, by weight loss, or body fat, or both
Adverse events: none reported
Notes Country: US
Funding: Lance Armstrong Foundation, American Cancer Society, Susan G. Komen. National Institutes of Health
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