Mocht u kanker-actueel de moeite waard vinden en ons willen ondersteunen om kanker-actueel online te houden dan kunt u ook via uw lidmaatschapsnummer korting krijgen bij enkele bedrijven.

En raadpleeg ook literatuurlijst niet-toxische middelen en behandelingen specifiek bij borstkanker van arts-bioloog drs. Engelbert Valstar

Zie ook bij fysieke activiteit onder complementair bij borstkanker

19 september 2018: Bron: . 2018; 2018: 4783710. Published online 2018 Jul 12

Vrouwen die overgewicht hebben en daarbij ook weinig bewegen en sporten lopen veel groter risico op het krijgen van borstkanker dan vrouwen die veel fysiek actief zijn met veel bewegen en sporten. Die laatste groep lijkt 49 procent minder risico te lopen op het ontwikkelen van borstkanker. Dit blijkt uit een zogeheten case control studie waarbij 116 vrouwen met de eerste diagnose van borstkanker werden vergeleken met 220 vrouwen in een controlegroep. 

De conclusie van de onderzoekers was vrij vertaald dat een lage fysieke activiteit en overgewicht (BMI) bij vrouwen voor de overgang geassocieerd waren met een hoger risico op het krijgen van borstkanker. Echter bij vrouwen na de overgang blijkt alleen fysieke activiteit dat verschil te geven en niet het overgewicht (BMI). De algemene consclusie was wel dat een hoge mate van fysieke activiteit het risico op het krijgen van met borstkanker sterk kan verminderen bij zowel vrouwen voor als vrouwen na de overgang.  

Deze grafiek geeft de studieresultaten weer met ook de verschillen tussen vrouwen van voor en na de overgang:

Table 2

Differences in body composition and level of physical activity between cases and controls according to menopausal status.

PremenopausalPostmenopausal
VariablesCases
(n = 45)
Controls
(n = 88)
p¹Cases
(n = 71)
Controls
(n = 138)
p¹
Body weight (kg) 70.0 ± 13.6 69.4 ± 12.9 0.956 67.9 ± 12.0 68.5 ± 12.7 0.636
Height (m) 1.6 ± 0.06 1.6 ± 0.06 1.000 1.6 ± 0.05 1.6 ± 0.06 0.261
BMI (kg/m2) 28.1 ± 5.2 27.7 ± 5.3 0.618 28.5 ± 5.2 28.3 ± 4.7 0.759
Waist circumference (cm) 91.9 ± 12.4 87.4 ± 13.2 0.058 93.1 ± 11.2 92.2 ± 11.9 0.780
Waist–height ratio 0.57 ± 0.08 0.55 ± 0.09 0.092 0.60 ± 0.07 0.58 ± 0.07 0.515
Conicity index 1.5 ± 0.11 1.4 ± 0.12 0.003 1.5 ± 0.10 1.5 ± 0.10 0.131
Body fat (%) 45.7 ± 6.5 44.0 ± 6.7 0.103 45.2 ± 6.5 45.9 ± 6.1 0.322
Body lean mass (kg) 36.2 ± 5.9 37.4 ± 6.7 0.070 35.4 ± 4.2 35.2 ± 5.2 0.326
Android fat (%) 48.6 ± 8.2 46.3 ± 9.1 0.111 49.9 ± 6.8 50.4 ± 7.1 0.381
Gynoid fat (%) 52.3 ± 5.8 51.5 ± 5.1 0.338 50.9 ± 5.7 52.1 ± 5.4 0.170
Android–gynoid fat ratio 0.92 ± 0.11 0.89 ± 0.15 0.200 0.98 ± 0.10 0.96 ± 0.10 0.498
MET (min/week) 1120 ± 2274 1754 ± 2348 <0.001 1227 ± 1662 1605 ± 2614 0.157

Nonparametric variables (Shapiro-Wilk test).

p < 0.01 controls vs. cases (Mann–Whitney U test).

In het volledige studierapport: Abdominal Adiposity and Physical Inactivity Are Positively Associated with Breast Cancer: A Case-Control Study  dat gratis is in te zien staan nog meer grafieken en gedetailleerde omschrijving van de studie.

Hier het abstract van de studie plus referentielijst.

A low percentage of lean body mass and high abdominal adiposity in the premenopausal period increase the chances of developing breast cancer. Regular physical activity is inversely associated with breast cancer in pre- and postmenopausal women.

. 2018; 2018: 4783710.
Published online 2018 Jul 12. doi:  10.1155/2018/4783710
PMCID: PMC6077523
PMID: 30112392

Abdominal Adiposity and Physical Inactivity Are Positively Associated with Breast Cancer: A Case-Control Study

Abstract

Objective

To examine whether breast cancer is associated with body composition and level of physical activity, considering the menstrual status.

Methods

This was a case-control study with 116 women recently diagnosed with breast cancer and 226 controls. Body composition was assessed by dual-energy X-ray absorptiometry, and cardiometabolic risk was assessed by conicity index and waist-to-height ratio. The short version of the International Physical Activity Questionnaire was used to estimate the level of physical activity. All analyses were adjusted for age and BMI.

Results

The total body fat percentage, android body fat, android-gynoid ratio, and waist circumference were positively associated (p < 0.05), whereas the percentage of lean body mass (p <0.05) and the level of physical activity (p < 0.01) were inversely associated with breast cancer in premenopausal women. Among postmenopausal women, physical activity decreased the chance of developing breast cancer by 49% (95% CI = 0.29 to 0.92, p = 0.02).

Conclusion

A low percentage of lean body mass and high abdominal adiposity in the premenopausal period increase the chances of developing breast cancer. Regular physical activity is inversely associated with breast cancer in pre- and postmenopausal women.

References

1. DeSantis C. E., Fedewa S. A., Sauer A. G., Kramer J. L., Smith R. A., Jemal A. Breast cancer statistics, 2015: convergence of incidence rates between black and white women. CA: A Cancer Journal for Clinicians. 2016;66(1):31–42. doi: 10.3322/caac.21320. [PubMed] [Cross Ref]
2. Freitas R., Jr., Gonzaga C. M. R., Freitas N. M. A., Martins E., Dardes R. D. C. D. M. Disparities in female breast cancer mortality rates in Brazil between 1980 and 2009. Clinics. 2012;67(7):731–737. doi: 10.6061/clinics/2012(07)05. [PMC free article] [PubMed] [Cross Ref]
3. Rohan T. E., Heo M., Choi L., Datta M., Freudenheim J. L., Kamensky V., et al. Body Fat and Breast Cancer Risk in Postmenopausal Women: A Longitudinal Study. Journal of Cancer Epidemiology. 2013:1–13. doi: 10.1155/2013/754815. [PMC free article] [PubMed] [Cross Ref]
4. Neilson H. K., Farris M. S., Stone C. R., Vaska M. M., Brenner D. R., Friedenreich C. M. Moderate-vigorous recreational physical activity and breast cancer risk, stratified by menopause status: a systematic review and meta-analysis. Menopause. 2016;24:322–344. [PubMed]
5. Howell A., Anderson A. S., Clarke R. B., et al. Risk determination and prevention of breast cancer. Breast Cancer Research. 2014;16(5, article 446) doi: 10.1186/s13058-014-0446-2. [PMC free article] [PubMed] [Cross Ref]
6. Maruti S. S., Willett W. C., Feskanich D., Rosner B., Colditz G. A. A prospective study of age-specific physical activity and premenopausal breast cancer. Journal of the National Cancer Institute. 2008;100(10):728–737. doi: 10.1093/jnci/djn135. [PMC free article] [PubMed] [Cross Ref]
7. Friedenreich C. M., Neilson H. K., Wang Q., et al. Effects of exercise dose on endogenous estrogens in postmenopausal women: A randomized trial. Endocrine-Related Cancer. 2015;22(5):863–876. doi: 10.1530/ERC-15-0243. [PubMed] [Cross Ref]
8. Xia X., Chen W., Li J., et al. Body Mass Index and Risk of Breast Cancer: A Nonlinear Dose-Response Meta-Analysis of Prospective Studies. Scientific Reports. 2015;4(1) doi: 10.1038/srep07480. [PMC free article] [PubMed] [Cross Ref]
9. Dorgan J. F., Klifa C., Shepherd J. A., et al. Height, adiposity and body fat distribution and breast density in young women. Breast Cancer Research. 2012;14(4, article no. R107) doi: 10.1186/bcr3228. [PMC free article] [PubMed] [Cross Ref]
10. Prado C. M. M., Wells J. C. K., Smith S. R., Stephan B. C. M., Siervo M. Sarcopenic obesity: a critical appraisal of the current evidence. Clinical Nutrition. 2012;31(5):583–601. doi: 10.1016/j.clnu.2012.06.010. [PubMed] [Cross Ref]
11. Ronco A. L., Boeing H., De Stefani E., Schulz M., Schulze M., Pischon T. A case-control study on fat-to-muscle ratio and risk of breast cancer. Nutrition and Cancer. 2009;61(4):466–474. doi: 10.1080/01635580902725995. [PubMed] [Cross Ref]
12. Bandera E. V., Chandran U., Zirpoli G., et al. Body fatness and breast cancer risk in women of African ancestry. BMC Cancer. 2013;13, article no. 475 doi: 10.1186/1471-2407-13-475. [PMC free article] [PubMed] [Cross Ref]
13. Habicht J. P. Estandardización de métodos epidemiológicos cuantitativos sobre el terreno. Bol Oficina Sanit Panam. 1974:375–384. [PubMed]
14. Gaudet M. M., Gapstur S. M., Sun J., Ryan Diver W., Hannan L. M., Thun M. J. Active smoking and breast cancer risk: Original cohort data and meta-analysis. Journal of the National Cancer Institute. 2013;105(8):515–525. doi: 10.1093/jnci/djt023. [PubMed] [Cross Ref]
15. The IPAQ Group. Guidelines for Data Processing and Analysis of the International Physical Activity Questionnaire. http://www.ipaq.ki.se, 2015 (accessed February 1, 2018)
16. Haskell W. L., Lee I. M., Pate R. R., et al. Physical activity and public health: updated recommendation for adults from the American College of Sports Medicine and the American Heart Association. Medicine & Science in Sports & Exercise. 2007;39(8):1423–1434. doi: 10.1249/mss.0b013e3180616b27. [PubMed] [Cross Ref]
17. Craig C. L., Marshall A. L., Sjöström M. International physical activity questionnaire: 12-country reliability and validity. Medicine & Science in Sports & Exercise. 2003;35(8):1381–1395. doi: 10.1249/01.MSS.0000078924.61453.FB. [PubMed] [Cross Ref]
18. Ainsworth B. E., Haskell W. L., Whitt M. C., Irwin M. L., Swartz A. M., Strath S. J. Compendium of physical activities: an update of activity codes and MET intensities. Medicine & Science in Sports & Exercise. 2000;32(9):498–504. doi: 10.1097/00005768-200009001-00009. [PubMed] [Cross Ref]
19. Lohman T. G., Roche A., Martorell R. Anthropometric standardization reference manual. Abridged Edition. Champaign, IL: Human Kinetics; 1988.
20. World Health Organization. Obesity: preventing and managing the global epidemic. Geneva, Switzerland: Report of a WHO Consultation on Obesity; 1997.
21. Valdez R, Seidell J. C., Ahn Y. I., Weiss K. M. A new index of abdominal adiposity as an indicator of risk for cardiovascular disease: a cross-population study. International Journal of Obesity and Related Metabolic Disorders. 1993;17:77–82. doi: 10.1038/sj.ijo.0801019. [PubMed] [Cross Ref]
22. Valdez R. A simple model-based index of abdominal adiposity. Journal of Clinical Epidemiology. 1991;44(9):955–956. doi: 10.1016/0895-4356(91)90059-I. [PubMed] [Cross Ref]
23. Petak S., Barbu C. G., Yu E. W., et al. The official positions of the international society for clinical densitometry: body composition analysis reporting. Journal of Clinical Densitometry. 2013;16(4):508–519. doi: 10.1016/j.jocd.2013.08.018. [PubMed] [Cross Ref]
24. World Cancer Research Fund (WCRF ) Breast cancer 2010- Report: food, nutrition, physical activity, and prevention of breast cancer. Washington, DC: American Institute for Cancer Research; 2010. [Cross Ref]
25. Tworoger S. S., Eliassen A. H., Missmer S. A., et al. Birthweight and body size throughout life in relation to sex hormones and prolactin concentrations in premenopausal women. Cancer Epidemiology, Biomarkers & Prevention. 2006;15(12):2494–2501. doi: 10.1158/1055-9965.EPI-06-0671. [PubMed] [Cross Ref]
26. Rose D. P., Vona-Davis L. Interaction between menopausal status and obesity in affecting breast cancer risk. Maturitas. 2010;66(1):33–38. doi: 10.1016/j.maturitas.2010.01.019. [PubMed] [Cross Ref]
27. Hanahan D., Weinberg R. A. Hallmarks of cancer: the next generation. Cell. 2011;144(5):646–674. doi: 10.1016/j.cell.2011.02.013. [PubMed] [Cross Ref]
28. McDonald C., Bauer J. D., Capra S. Body composition and breast cancer - The role of lean body mass. Cancer Forum. 2011;35(2):102–106.
29. Paxton R. J., King D. W., Garcia-Prieto C., et al. Associations between body size and serum estradiol and sex hormone-binding globulin levels in premenopausal african american women. The Journal of Clinical Endocrinology & Metabolism. 2013;98(3):E485–E490. doi: 10.1210/jc.2012-2782. [PMC free article] [PubMed] [Cross Ref]
30. Nakajima K., Takeoka M., Mori M., et al. Exercise effects on methylation of ASC gene. International Journal of Sports Medicine. 2010;31(9):671–675. doi: 10.1055/s-0029-1246140. [PubMed] [Cross Ref]
31. Zeng H., Irwin M. L., Lu L., et al. Physical activity and breast cancer survival: an epigenetic link through reduced methylation of a tumor suppressor gene. Breast Cancer Research and Treatment. 2012;133(1):127–135. doi: 10.1007/s10549-011-1716-7. [PubMed] [Cross Ref]
32. Allavena P., Sica A., Solinas G., Porta C., Mantovani A. The inflammatory micro-environment in tumor progression: The role of tumor-associated macrophages. Critical Review in Oncology/Hematology. 2008;66(1):1–9. doi: 10.1016/j.critrevonc.2007.07.004. [PubMed] [Cross Ref]

Articles from BioMed Research International are provided here courtesy of Hindawi Limited

Plaats een reactie ...

Reageer op "fysieke activiteit kan voor 49 procent borstkanker voorkomen. Daarentegen veroorzaakt overgewicht en weinig bewegen en sporten vaker borstkanker"


Gerelateerde artikelen
 

Gerelateerde artikelen

Arc-Well is nieuwe manier >> AI = Kunstmatige intelligentie >> Alcohol vergroot kans op kanker >> Anorexia: Vrouwen met anorexia >> Aspirine en NSAIDs lijken >> Bisphosfonaten lijken preventief >> Black Cohosh = zilverkruid >> Borstkanker is soms erfelijk >> Chemo en bestraling voor kinderen >> Cosmetische borstimplantaten >>