Physical activity barriers, facilitators, and preferences in primary and tertiary prevention of breast cancer: a French national observational study
Bibliographic record
Abstract
BACKGROUND: The benefits of physical activity are widely recognized in primary and tertiary breast cancer prevention. Most women do not meet the international physical activity recommendations for breast cancer prevention despite public health policies. The aim of this study is to better understand barriers, facilitators, and preferences for physical activity among adult women in France. METHODS: A web-based observational study was conducted between February and March 2021 through a Seintinelles French collaborative research platform. Women with and without a history of breast cancer were asked to complete an online questionnaire measuring sociodemographic and health characteristics, physical activity behaviors, physical activity barriers and facilitators, and physical activity preferences. RESULTS: A total of 2,306 women participated in this study, including women without breast cancer (n = 1,245), women with localized breast cancer undergoing treatment (n = 530), or post-treatment (n = 396), and women with metastatic breast cancer (n = 135). The mean age was 48.7 years (SD = 13.2) and 63.8% of the population were classified as insufficiently active. Lack of motivation was the most common physical activity barrier in all groups while the main physical activity facilitators were women's desire to improve their abilities and quality of life, to feel better about their bodies and to experience pleasure. Walking remains the preferred physical activity for all women in the study, as they particularly like to be active outdoors, under supervision, on any day of the week, at a moderate intensity, for 30-60 min per session. Some differences of physical activity barriers, facilitators and preferences were observed between women who are still undergoing treatment compared to women who have completed the treatment or without breast cancer history. Women with metastatic breast cancer emphasized their need for physical activity counselling. Overall, physically inactive women reported more barriers to exercise (17 out of 22 items), whereas physically active women reported more facilitators (20 out of 22 items). CONCLUSIONS: Women across the breast cancer spectrum identified similar and unique determinants and preferences for physical activity. These determinants and preferences may contribute to targeted activity guideline development to promote physical activity for women before, during, and after treatment for breast cancer. IMPLICATIONS FOR CANCER SURVIVORS: Women who had completed treatment for localized breast cancer share both common and specific determinants and preferences for physical activity compared with women without breast cancer, those undergoing treatment, and those with metastatic disease, highlighting the need for tailored physical activity counselling and programs.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.003 | 0.004 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.001 | 0.002 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.002 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".