Physical activity and survival from breast cancer

Rohan, Thomas E.; Fu, Wenshan; Hiller, Janet E.

doi:10.1097/00008469-199510000-00010

Cited by 51 publications

(43 citation statements)

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“…Our findings are consistent with the only other study of physical activity and breast cancer survival which found no relation between risk of breast cancer death and total recreational activity performed in the year before diagnosis (Rohan et al, 1995), similar to our findings for lifetime exercise activity. Our median follow-up time (10.4 years) was nearly twice that of the earlier study (5.5 years), but even with the longer follow-up time we observed no marked association.…”

Section: Discussionsupporting

confidence: 93%

Exercise activity, body size and premenopausal breast cancer survival

Enger

Bernstein

2004

Br J Cancer

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We evaluated prediagnosis predictors of breast cancer survival among 717 premenopausal breast cancer patients enrolled in a population-based case -control study and followed for 10.4 years. Using Cox's proportional hazards models, lifetime exercise, weight, and height were not associated with survival. Higher body mass index (trend P ¼ 0.21) and recent exercise activity (trend P ¼ 0.31) were weakly associated with longer survival.

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Section: Discussionsupporting

confidence: 93%

Exercise activity, body size and premenopausal breast cancer survival

Enger

Bernstein

2004

Br J Cancer

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“…Of these articles, 16 [18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33] were considered to be potentially relevant. Walsh et al 33 was later excluded because although the study assessed performance status, after further review this was determined not to be a measure of PA as defined by the authors.…”

Section: Resultsmentioning

confidence: 99%

“…All articles included in this SR were prospective cohort studies (level 2b in Sackett's levels of evidence). 34 Quality assessment was completed for the remaining 10 articles [18][19][20][22][23][24][28][29][30][31] that met the inclusion criteria. The kappa (k) value for interrater reliability for PEDro scores was 0.96, representing excellent agreement between raters.…”

Section: Resultsmentioning

confidence: 99%

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Effects of Physical Activity on Cancer Survival: A Systematic Review

Barbaric¹,

Brooks²,

Moore³

et al. 2010

Physiotherapy Canada

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Purpose: Physical activity (PA) has been suggested to help increase the survival of individuals with cancer. The objective of this review was to systematically evaluate and summarize the available evidence investigating the effect of PA on the survival of individuals with cancer. Methods: Electronic databases (CINAHL, EMBASE, and MEDLINE) were systematically searched for randomized controlled trials and cohort studies. Selected studies were assessed by two independent investigators for methodological quality, using the PEDro scale. Results: Ten prospective cohort studies met the inclusion criteria. Quality-assessment scores averaged 5/10 on the PEDro scale, with two articles obtaining a score of 6/10. The majority of studies found that individuals participating in higher levels of physical activity had a reduced risk of cancer-related mortality. This trend was observed specifically for breast, colon, and colorectal cancers. On average, it appears that engaging in higher levels of metabolic equivalent hours per week may help to improve survival rates among individuals diagnosed with cancer. Conclusion:Patients diagnosed with cancer demonstrated a trend toward increased survival with greater levels of PA. However, because only prospective cohort studies were included in the study, the conclusions drawn should be regarded with caution.Key Words: cancer, exercise, physical activity, survival, systematic review RÉ SUMÉObjectif : L'activité physique (AP) a é té suggé ré e comme moyen d'aider à la survie des individus atteints de cancer. L'objectif de cette analyse consistait à é valuer systé matiquement et à ré sumer l'ensemble des preuves disponibles relativement aux effets de l'activité physique sur la survie des personnes atteintes de cancer. Mé thode : Une recherche systé matique a é té ré alisé e dans les bases de donné es é lectroniques (CINAHL, EMBASE et MEDLINE), afin de ré pertorier les essais cliniques comparatifs randomisé s et les é tudes par cohortes. La qualité mé thodologique des é tudes sé lectionné es a é té é valué e par deux chercheurs indé pendants à l'aide de l'é chelle PEDro. Ré sultats : Dix é tudes prospectives par cohortes satisfaisaient les critè res d'inclusion. Les ré sultats de l'é valuation de la qualité se chiffraient en moyenne à 5/10 sur l'é chelle de PEDro ; deux articles ont obtenu une note de 6/10. La majorité des é tudes ont permis de constater que les individus prenant part à de l'activité physique plus soutenue couraient moins de risque de mourir du cancer. Cette tendance a é té particuliè rement observé e pour le cancer du sein, du cô lon et pour le cancer colorectal. En moyenne, il semble que le fait de participer à des niveaux plus é levé s d'é quivalents mé taboliques par semaine peut aider à amé liorer les taux de survie chez les individus ayant reç u un diagnostic de cancer. Conclusion : Les patients ayant reç u un diagnostic de cancer ont dé montré un plus grand taux de survie avec un niveau plus é levé d'AP. Toutefois, en raison de l'inclusion d'é tudes sur cohor...

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“…It is still unclear how important pre-diagnosis versus post-diagnosis physical activity levels are for secondary prevention and quality of life, with study findings showing mixed results (Rohan et al, 1995;Ibrahim & Al-Homaidh, 2011). It has been suggested that cancer survivors who maintain or increase their physical activity levels after being diagnosed report a higher quality of life compared with those whose PA levels decrease post-diagnosis (Blanchard et al, 2003b).…”

Section: Problems With Secondary Prevention Researchmentioning

confidence: 99%

Physical Activity and Cancer

Bk¹,

Ih²,

Rohde³

2013

Encyclopedia of Behavioral Medicine

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It is widely accepted that physical activity is important for physical functioning and well-being, and as such the promotion of active lifestyles is becoming increasingly significant in public health policy both in the UK and worldwide. Sedentary lifestyles have been associated with increased risk of obesity and preventable disease including diabetes, coronary heart disease and some cancers. With regards cancer specifically, this chapter will provide a brief overview on current opinions on the link between physical activity and cancer prevention.The published evidence focuses both on primary and secondary prevention. More recent evidence has investigated the use of physical activity in secondary prevention for those who have been diagnosed with cancer and proposed a link between physical activity, morbidity and mortality in those with cancer. The evidence-base for secondary prevention is more limited. Nevertheless, studies to date have indicated that physical activity can improve both physical functioning and psychological outcomes in cancer survivors, and significantly improve quality of life.The exact nature of those interventions which confer the most positive effects is less well-established, and there is a current lack of consensus on the most appropriate type, intensity and duration of activity for people with cancer. It has not yet been wellestablished as to which stage of the treatment programme physical activity should be encouraged (during or following treatment) or the most appropriate length of time during which structured physical activity interventions should be delivered to achieve beneficial results.These factors will be discussed in this chapter, and barriers to engaging in physical activity for those with a diagnosis of cancer will be considered. The chapter will conclude with a summary of key findings and the potential for further research.

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Physical activity and survival from breast cancer

Cited by 51 publications

References 0 publications

Exercise activity, body size and premenopausal breast cancer survival

Exercise activity, body size and premenopausal breast cancer survival

Effects of Physical Activity on Cancer Survival: A Systematic Review

Physical Activity and Cancer

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