Clinically Relevant Physical Benefits of Exercise Interventions in Breast Cancer Survivors

2016 ◽  
Vol 18 (2) ◽  
Author(s):  
Amy A. Kirkham ◽  
Kelcey A. Bland ◽  
Sarah Sayyari ◽  
Kristin L. Campbell ◽  
Margot K. Davis
2017 ◽  
Vol 53 (8) ◽  
pp. 504-512 ◽  
Author(s):  
Sarah E Neil-Sztramko ◽  
Kerri M Winters-Stone ◽  
Kelcey A Bland ◽  
Kristin L Campbell

ObjectivesTo update our previous evaluation of the exercise interventions used in randomised controlled trials of breast cancer survivors in relation to (1) the application of the principles of exercise training in the exercise prescription; (2) the reporting of the components of the exercise prescription; and (3) the reporting of adherence of participants to the prescribed interventions.DesignSystematic review.Data sourcesThe OVID Medline, Embase, CINAHL and SPORTDiscus electronic databases were searched from January 2010 to January 2017.Eligibility criteriaRandomised controlled trials of at least 4 weeks of aerobic and/or resistance exercise in women diagnosed with breast cancer, reporting on physical fitness or body composition outcomes.ResultsSpecificity was appropriately applied by 84%, progression by 29%, overload by 38% and initial values by 67% of newly identified studies. Reversibility was reported by 3% anddiminishing returns by 22% of newly identified studies. No studies reported all components of the exercise prescription in the methods, or adherence to the prescribed intervention in the results. Reporting of reversibility has increased from 2010, but no other improvements in reporting were noted from the previous review.Summary/ConclusionNo studies of exercise in women with breast cancer attended to all principles of exercise training, or reported all components of the exercise prescription in the methods, or adherence to the prescription in the results. Full reporting of the exercise prescribed and completed is essential for study replication in research and translating research findings into the community, and should be prioritised in future trials.


2021 ◽  
Vol 12 ◽  
Author(s):  
Yutaka Matsuoka ◽  
Katsunori Tsuji ◽  
Eisuke Ochi

Cancer-related fatigue (CRF) is one of the most frequently reported and disabling symptoms in cancer survivors. With its negative impact on the activities of daily living, work, social activities, and mood, CRF causes severe impairment of quality of life. A previous study showed that omega-6 polyunsaturated fatty acid (PUFA) supplementation unexpectedly reduced CRF compared with omega-3 PUFA supplementation and that omega-6 PUFA supplementation reduced pro-inflammatory serum markers in fatigued American breast cancer survivors. Meanwhile, a recent meta-analysis of individual patient data revealed significant benefits of exercise interventions on CRF. Recently, we completed our randomized controlled trial among early-stage Japanese breast cancer survivors, in which we examined the effect of baseline blood PUFA characteristics on change in CRF during the 12-week trial by exercise group and confirmed that increased Cancer Fatigue Scale (CFS) was associated with both docosahexaenoic acid (DHA) (p = 0.06) and omega-3 index (p = 0.08) at baseline in all participants (n = 46, omega-6/omega-3 ratio = 6.79, SD = 1.90). On the contrary, DHA at baseline was positively correlated with change in CRF (r = 0.40, p = 0.06) in the control group (n = 24, omega-6/omega-3 ratio = 7.0). Moreover, eicosapentaenoic acid (EPA) at baseline was positively correlated with leg strength (r = 0.39, p = 0.10) in the exercise group. In conclusion, blood PUFA balance might be associated with the effect of exercise on CRF. In addition, higher EPA in individuals who conducted exercise likely has a beneficial effect on muscle strength. Further investigation is needed to clarify the interaction between PUFAs and exercise for alleviating CRF.


Author(s):  
Itiziar Pagola ◽  
Javier S. Morales ◽  
Lidia B. Alejo ◽  
Olga Barcelo ◽  
Marta Montil ◽  
...  

AbstractThis study compared the effects of two supervised concurrent training interventions in breast cancer survivors with cancer-related fatigue at baseline. Twenty-three female breast cancer survivors (50±8 years) were randomized to a high- (n=13) or a moderate-intensity (n=10) training program. Both interventions lasted 16 weeks and included the same resistance exercises, but the aerobic component was supervised and more intense in the former (i.e., rating of perceived exertion of 7–8 vs. 6 on a 1–10 scale for the high and moderate-intensity intervention, respectively). The primary endpoint was fatigue perception. Endpoints were assessed at baseline and after 16 weeks. The p-value for statistical significance was set at 0.004 after Bonferroni correction for multiple comparisons. The high-intensity training program increased lower-limb muscle strength significantly (p=0.002) and tended to improve fatigue perception (p=0.006), waist circumference (p=0.013), neutrophil-to-lymphocyte ratio (p=0.028) and some quality of life items (p=0.011). Although the moderate-intensity training program did not provide such benefits in general (i.e., higher p-values for pre vs post-intervention comparisons), no significant differences were found between interventions (all p>0.004). Further research is needed to elucidate if the benefits provided by high-intensity concurrent training are superior to those elicited by moderate-intensity training in breast cancer survivors.


2017 ◽  
Vol 35 (15_suppl) ◽  
pp. e21584-e21584
Author(s):  
Rachel Hirschey ◽  
Wei Pan ◽  
Gretchen Genevieve Kimmick ◽  
Marilyn Hockenberry ◽  
Ryan Shaw ◽  
...  

e21584 Background: Exercise is associated with decreased mortality and recurrence risk and improved quality of life for breast cancer survivors (BCS). Roughly 1/3 of BCS exercise enough to experience these benefits. A promising strategy to increase exercise among BCS is to target outcome expectations (OEs), or what one expects to obtain or avoid from a behavior. OE dimensions include 1) importance – value placed on the outcome(s); 2) certainty - perceived probability outcome(s) will occur; and 3) accessibility – the frequency with which outcome(s) are considered. Methods: This RCT tested the feasbility and effects of a self-directed booklet designed to increase OEs and exercise. It was created in collaboration with BCS who successfully use exercise to manage long term side effects. OEs were measured through online surveys and exercise was measure with a Fitbit accelerometer. Data was collected at baseline, 4, 8 and 12 weeks post intervention. Feasibility was defined as the extent to which participants made use of intervention materials and was assessed through 9 researcher related questions. Results: The sample is mean age of 58, 74% white, 26% black, an average 2.5 years post treatment and about 1/3 take an AI or SERM. The booklet “somewhat” (mean = 3.24, SD = 1.8 on 1-5 Likert scale) made use of the booklet, as intended. OEs increased 0.01 points over time in the intervention arm, compared to the control arm ( p = 0.3555); 0.4 points more for black participants compared to white ( p = 0.0003); 0.2 points per every unit of increased exercise self-efficacy ( p < 0.0001), and 0.01 points per month participants were closer to their time of cancer surgery ( p = 0.0037). Intervention arm participants increased their weekly steps by 970, every 4 weeks, compared to participants in the control arm ( p = 0.0283). Conclusions: Overall the intervention was well received by participants, had positive effects on OEs and exercise and can easily be translated into practice with need for minimal resources. Significant differences were noted for black compared to white participants, thus it is necessary to understand racial differences in exercise beliefs when designing future exercise interventions. Clinical trial information: NCT02348710.


2017 ◽  
Vol 25 (10) ◽  
pp. 3243-3252 ◽  
Author(s):  
Siobhan M. Phillips ◽  
David E. Conroy ◽  
Sarah Kozey Keadle ◽  
Christine A. Pellegrini ◽  
Gillian R. Lloyd ◽  
...  

Author(s):  
Jasna But-Hadzic ◽  
Mirza Dervisevic ◽  
Damir Karpljuk ◽  
Mateja Videmsek ◽  
Edvin Dervisevic ◽  
...  

The six-minute walk test (6MWT) is a widely used test for the indirect measurement of cardiorespiratory fitness in various cancer populations. Although the 6MWT is a simple test, there are no normative values for breast cancer survivors (BCS) or comparisons of results with healthy counterparts. A systematic review with a meta-analysis was carried out, which included studies from 2007 to 2020. Ninety-one studies were found, 21 of which were included in the quantitative synthesis. Among them were 9 randomized controlled trials (RCT), 8 prospective cohort studies and 4 cross-sectional studies. A total of 1084 BCS were included. Our results revealed that healthy subjects (n = 878) covered a significantly greater distance than BCS during the 6MWT (589.9 m vs. 477.4 m, p < 0.001), and the results of the meta-regression analysis showed that the 6MWD was predicted by the participants’ BMI (p < 0.001), but not by their age (p = 0.070). After adjustment for BMI, the healthy subjects also covered greater distances than the BCS (103 m; p < 0.001). The normative values of 6MWT were presented for BCS. Besides, 6MWT distances distinguish between their healthy counterparts, therefore, the 6MWT distance is a relevant parameter for the assessment and monitoring of cardiorespiratory fitness in medical and exercise interventions for BCS.


2009 ◽  
Vol 41 (7) ◽  
pp. 1413-1420 ◽  
Author(s):  
AMY ROGERINO ◽  
LORITA L. GRANT ◽  
HOMER WILCOX ◽  
KATHRYN H. SCHMITZ

2014 ◽  
Vol 32 (26_suppl) ◽  
pp. 121-121 ◽  
Author(s):  
Jose F Meneses-Echavez ◽  
Robinson Ramirez-Velez ◽  
Emilio Gonzalez-Jimenez ◽  
Jacqueline Schmidt Rio-Valle ◽  
Maria Jose Sanchez Perez ◽  
...  

121 Background: Low-grade inflammation, characterized by high cytokine activity, plays a crucial role in tumorigenesis. Further, cytokines and other inflammatory biomarkers are closely implicated in tumor growth, angiogenesis, and metastasis. This metaanalysis of randomized controlled trials estimates the effects of exercise training in the control of the serum levels of cytokines and other inflammatory markers in breast cancer survivors. Methods: PRISMA statement and the Cochrane Handbook were followed. We searched MEDLINE, CENTRAL, EMBASE, Scopus and DARE database to retrieve randomized controlled trials published between 1980- March 2014 providing effect estimates of exercise interventions in the serum levels of cytokines, such as interleukin (IL) -2, IL-6, IL-8, tumoral necrosis factor alpha (TNF-α) and C-reactive protein (CRP) in breast cancer survivors. An Inverse of variance (IV) fixed-effects model was conducted in absence of heterogeneity (I2<50%); otherwise a random-effects model was selected. Mean Differences (MD) were calculated to estimate differences between groups (p<0.05 with 95% Confidence interval). Heterogeneity was measured with the Chi2 test (p<0.10) and I2 statistics. Results: A total of 15 studies were included (n=1,447; mean age= 51.6 years old). Exercise interventions resulted in positive effects for CRP (MD= 0.37, 95%CI, 0.04 to 0.71; p= 0.03; I2=15%), IL-2 (MD= -6.04, 85%CI, -11.41 to -0.67; p=0.03; I2=0%), IL-10 (-22.90, 95%CI, -41.27 to -4.53; p=0.001, I2=0%) and waist circumference as indicator of body composition (MD= -1.12, 95%CI, -2.06 to -0.18; p=0.02; I2=45%). Non-significant differences were observed for IL-6 and TNF-α. There was no evidence of publication bias. Conclusions: These findings suggest that exercise training improves the systemic pro-inflammatory profile in breast cancer survivors and consequently the immunological responses and the carcinogenic processes related to tumoral environment. The effects observed for IL-10 provide a novel focus of evidence for the role of exercise as an effective anti-inflammatory intervention in cancer survivors.


2012 ◽  
Vol 2012 ◽  
pp. 1-15 ◽  
Author(s):  
Daniela L. Stan ◽  
Nerissa M. Collins ◽  
Molly M. Olsen ◽  
Ivana Croghan ◽  
Sandhya Pruthi

Survivors of breast cancer are faced with a multitude of medical and psychological impairments during and after treatment and throughout their lifespan. Physical exercise has been shown to improve survival and recurrence in this population. Mind-body interventions combine a light-moderate intensity physical exercise with mindfulness, thus having the potential to improve both physical and psychological sequelae of breast cancer treatments. We conducted a review of mindfulness-based physical exercise interventions which included yoga, tai chi chuan, Pilates, and qigong, in breast cancer survivors. Among the mindfulness-based interventions, yoga was significantly more studied in this population as compared to tai chi chuan, Pilates, and qigong. The participants and the outcomes of the majority of the studies reviewed were heterogeneous, and the population included was generally not selected for symptoms. Yoga was shown to improve fatigue in a few methodologically strong studies, providing reasonable evidence for benefit in this population. Improvements were also seen in sleep, anxiety, depression, distress, quality of life, and postchemotherapy nausea and vomiting in the yoga studies. Tai chi chuan, Pilates, and qigong were not studied sufficiently in breast cancer survivors in order to be implemented in clinical practice.


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