Heim, M.E., v d Malsburg, M.L., & Niklas, A. (2007). Randomized controlled trial of a structured training program in breast cancer patients with tumor-related chronic fatigue. Onkologie, 30, 429–434.
Intervention consisted of physiotherapy, group exercises, and psycho-oncologic interventions. Patients received a brochure with instructions for nine muscle strength and nine stretching exercises for large muscle groups. Outcomes were assessed at baseline, start of intervention (T1), end of intervention (T2), and at a three-month follow-up (T3).
Trial outcome index for fatigue in the FACT-F questionnaire showed improvement in fatigue from T1–T3. The interaction of time and group were statistically significant (p = 0.003). For MFI measures, interaction between group and time effects was significant for physical fatigue between T2–T3 (p = 0.028). The mean MFI total score was higher for both the control and intervention group in comparison to the mean MFI total score for healthy women in the age group of 40–50 years at the three-month follow-up.
Future research should incorporate better measures for the intensity of the exercise.