Purpose. We aimed to evaluate the potential for implementing exercise interventions for patients with breast cancer in the Netherlands, based on findings of the Dutch randomized controlled trials in this population. Methods. We evaluated the implementation of four Dutch exercise trials retrospectively, using the five dimensions of the RE-AIM framework: Reach (exercise participation rate), Effectiveness for physical fitness, fatigue, quality of life, and physical function, Adoption (e.g., satisfaction of physical therapists guiding the exercise intervention), Implementation (cost-effectiveness and exercise adherence correlates thereof), and Maintenance (maintenance of exercise levels by individual patients and sustainability of exercise delivery at organization level). Thereby, we reflect on these results using (international) literature to gain better insight in overall barriers, facilitators, and opportunities for further implementation of exercise interventions. Results. Participation rates of 44-52% not only indicated acceptable Reach in the context of a trial but also indicated room for improvement. Effectiveness of exercise during and after treatment was demonstrated in most trials showing benefits for aerobic fitness, physical fatigue, quality of life and physical function, and high patient satisfaction. Adoption of the exercise interventions by physical therapists was adequate (satisfaction score: 7.5 out of 10). Evaluation of Implementation indicated adequate adherence to supervised exercise, inconsistent findings on potential correlates of adherence, and promising results on cost-effectiveness. Currently, reimbursement for exercise programs is lacking. Maintenance of intervention effects at the patient level was limited and inconsistent. Maintenance of intervention availability at the organizational level was facilitated by an extensive network of specially trained physical therapists, but better communication and collaboration between different healthcare professionals are desired. Conclusions. Improved implementation could particularly be achieved by increasing reach and improved focus on exercise maintenance on both the patient and organizational level.
Objective Animal data suggest that exercise during chemotherapy is cardioprotective, but clinical evidence to support this is limited. This study evaluated the effect of exercise during chemotherapy for breast cancer on long-term cardiovascular toxicity. Methods This is a follow-up study of two previously performed randomised trials in patients with breast cancer allocated to exercise during chemotherapy or non-exercise controls. Cardiac imaging parameters, including T1 mapping (native T1, extracellular volume fraction (ECV)), left ventricular ejection fraction (LVEF) and global longitudinal strain (GLS), cardiorespiratory fitness, and physical activity levels, were acquired 8.5 years post-treatment. Results In total, 185 breast cancer survivors were included (mean age 58.9±7.8 years), of whom 99% and 18% were treated with anthracyclines and trastuzumab, respectively. ECV and Native T1 were 25.3%±2.5% and 1026±51 ms in the control group, and 24.6%±2.8% and 1007±44 ms in the exercise group, respectively. LVEF was borderline normal in both groups, with an LVEF<50% prevalence of 22.5% (n=40/178) in all participants. Compared with control, native T1 was statistically significantly lower in the exercise group (β=-20.16, 95% CI -35.35 to -4.97). We found no effect of exercise on ECV (β=-0.69, 95% CI -1.62 to 0.25), LVEF (β=-1.36, 95% CI -3.45 to 0.73) or GLS (β=0.31, 95% CI -0.76 to 1.37). Higher self-reported physical activity levels during chemotherapy were significantly associated with better native T1 and ECV. Conclusions In long-term breast cancer survivors, exercise and being more physically active during chemotherapy were associated with better structural but not functional cardiac parameters. The high prevalence of cardiac dysfunction calls for additional research on cardioprotective measures, including alternative exercise regimens. Trial registration number NTR7247.
Preliminary empirical research conducted by the leading author has shown that design students using biological analogies, or models across different contexts, often misinterpreted these, intentionally or unintentionally, during design. By copying shape or form without integrating the main function of the mimicked biological model, students failed to consider the process or system directing that function when attempting to solve the design need. This article considers the first step in the development of an applicable educational model using distant analogies from nature, by means of biomimicry thinking methodology. The analysis examines results from a base-line exercise taken by students in the Minor Design with Nature during the Spring semester of Industrial Design Engineering at The Hague University of Applied Sciences in 2019, verifying that students without biomimicry training use this hollow approach automatically. This research confirms the gap between where students are at the beginning of the semester and where they need to be as expert sustainable designers when they graduate. These findings provide a starting point for future interventions in biomimicry workshops to improve systematic design thinking through structural and scientifically based iterations of analogical reasoning. https://doi.org/10.1007/s10798-020-09574-1 LinkedIn: https://www.linkedin.com/in/helenkopnina/
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