Breast and Colon Cancer Survivors' Expectations About Physical Activity for Improving Survival

Perception of the prognostic impact of physical activity among cancer survivors: a narrative review

Purpose

Little is known about cancer survivors’ perceptions of the prognostic impact of physical activity (PA) and the association between perceptions and PA. Therefore, the present narrative review aimed to identify cancer survivors' perceptions of the prognostic impact of PA, perception barriers, and association with PA.

Methods

A literature search was performed via PubMed and Scopus with search terms including “physical activity”, “cancer survivor”, and “perception” in November 2022. Inclusion criteria were studies that investigated cancer survivors’ perceptions of the prognostic impact of PA written in English. Studies were excluded for patients undergoing cancer treatment or advanced cancer patients only.

Results

Our search identified a total of 13,080 articles, and 14 studies met the inclusion criteria. The study sample size ranged from 8 to 1003 participants. Most studies showed that cancer survivors poorly understood the prognostic impact of PA. Perception barriers were cited as a lack of advice from health care professionals (HCPs). Several studies reported a positive association between the perception of the prognostic impact of PA and actual PA.

Conclusions

This narrative review revealed that most reports showed that cancer survivors have a poor perception of the prognostic impact of PA. In addition, the lack of advice from HCPs may also be contributing to the lack of perception among cancer survivors. Therefore, to increase the amount of PA among cancer survivors, it is necessary to improve the perception of the prognostic impact of PA in both cancer survivors and HCPs.

Detecting Prognosis Risk Biomarkers for Colon Cancer Through Multi-Omics-Based Prognostic Analysis and Target Regulation Simulation Modeling

Background

Colon cancer is one of the most common health threats for humans since its high morbidity and mortality. Detecting potential prognosis risk biomarkers (PRBs) is essential for the improvement of therapeutic strategies and drug development. Currently, although an integrated prognostic analysis of multi-omics for colon cancer is insufficient, it has been reported to be valuable for improving PRBs’ detection in other cancer types.

Aim

This study aims to detect potential PRBs for colon adenocarcinoma (COAD) samples through the cancer genome atlas (TCGA) by integrating muti-omics.

Materials and Methods

The multi-omics-based prognostic analysis (MPA) model was first constructed to systemically analyze the prognosis of colon cancer based on four-omics data of gene expression, exon expression, DNA methylation and somatic mutations on COAD samples. Then, the essential features related to prognosis were functionally annotated through protein–protein interaction (PPI) network and cancer-related pathways. Moreover, the significance of those essential prognostic features were further confirmed by the target regulation simulation (TRS) model. Finally, an independent testing dataset, as well as the single cell-based expression dataset were utilized to validate the generality and repeatability of PRBs detected in this study.

Results

By integrating the result of MPA modeling, as well the PPI network, integrated pathway and TRS modeling, essential features with gene symbols such as EPB41, PSMA1, FGFR3, MRAS, LEP, C7orf46, LOC285000, LBP, ZNF35, SLC30A3, LECT2, RNF7, and DYNC1I1 were identified as PRBs which provide high potential as drug targets for COAD treatment. Validation on the independent testing dataset demonstrated that these PRBs could be applied to distinguish the prognosis of COAD patients. Moreover, the prognosis of patients with different clinical conditions could also be distinguished by the above PRBs.

Conclusions

The MPA and TRS models constructed in this paper, as well as the PPI network and integrated pathway analysis, could not only help detect PRBs as potential therapeutic targets for COAD patients but also make it a paradigm for the prognostic analysis of other cancers.

What Do Breast Cancer Survivors Expect From Exercise?

BACKGROUND

Exercise outcome expectations (OEs) (ie, what one expects to obtain or avoid by exercising) are influential to increase exercise among cancer survivors.

OBJECTIVE

The aim of this study was to measure the accessibility (ie, frequency one thinks about exercise resulting in an outcome) and importance (ie, one's value of the outcome) of OEs among breast cancer survivors.

METHODS

Stage IA to IIB breast cancer survivors who were 1 to 5 years posttreatment completed OE questionnaires. Descriptive statistics were used to examine OE accessibility and importance.

RESULTS

The sample (n = 73) was 91.8% white, 5.4% African American, 1.4% Asian or Pacific Islander, and 1.4% other. The mean age was 58 (SD, 9.6) years. Outcome expectation importance mean was 6.1 (SD, 0.4), indicating OEs are overall "important." Accessibility mean was 4.8 (SD, 0.6), demonstrating breast cancer survivors think about exercise OEs "sometimes/50% of the time." There was a moderate (rs = 0.48) relationship between OE importance and accessibility, indicating they are related, yet distinct.

CONCLUSIONS

Outcome expectations are generally important to breast cancer survivors. Thus, OEs may motivate increased exercise among this population.

IMPLICATIONS FOR PRACTICE

Oncology providers should encourage patients to think about OEs more often to increase exercise. Compared with traditional approaches of informing patients about exercise benefits, this may be a more comprehensive and powerful approach to motivate exercise among breast cancer survivors.

Protocol for Moving On: a randomized controlled trial to increase outcome expectations and exercise among breast cancer survivors

Aim

The aim of this study was to test the feasibility and fidelity of an intervention, Moving On, aimed to increase outcome expectations OEs (i.e. what one expects to obtain or avoid as a result of a behaviour) and exercise among breast cancer survivors.

Design

Randomized controlled trial.

Methods

Intervention arm participants will be given a theory-guided booklet that was co-created by the research team and three physically active breast cancer survivors who exercise to manage late and long-term treatment effects. Attention control arm participants will be given a similar booklet focused on diet. Participants will have 1 week to complete reading, writing and reflecting activities in the booklets. Study outcomes will be measured through online surveys; exercise will also be measured objectively with a Fitbit®. Four weeks postintervention, participants' thoughts about the usefulness, strengths and weakness of the intervention booklet will be assessed. OEs and exercise will be measured at baseline, 4-, 8- and 12-week postintervention.

An evaluation of the behaviour-change techniques used on Canadian cancer centre Web sites to support physical activity behaviour for breast cancer survivors

Background

Cancer centre Web sites can be a useful tool for distributing information about the benefits of physical activity for breast cancer (bca) survivors, and they hold potential for supporting health behaviour change. However, the extent to which cancer centre Web sites use evidence-based behaviour change techniques to foster physical activity behaviour among bca survivors is currently unknown. The aim of our study was to evaluate the presentation of behaviour-change techniques on Canadian cancer centre Web sites to promote physical activity behaviour for bca survivors.

Methods

All Canadian cancer centre Web sites (n = 39) were evaluated by two raters using the Coventry, Aberdeen, and London-Refined (calo-re) taxonomy of behaviour change techniques and the eEurope 2002 Quality Criteria for Health Related Websites. Descriptive statistics were calculated.

Results

The most common behaviour change techniques used on Web sites were providing information about consequences in general (80%), suggesting goal-setting behaviour (56%), and planning social support or social change (46%). Overall, Canadian cancer centre Web sites presented an average of M = 6.31 behaviour change techniques (of 40 that were coded) to help bca survivors increase their physical activity behaviour. Evidence of quality factors ranged from 90% (sites that provided evidence of readability) to 0% (sites that provided an editorial policy).

Conclusions

Our results provide preliminary evidence that, of 40 behaviour-change techniques that were coded, fewer than 20% were used to promote physical activity behaviour to bca survivors on cancer centre Web sites, and that the most effective techniques were inconsistently used. On cancer centre Web sites, health promotion specialists could focus on emphasizing knowledge mobilization efforts using available research into behaviour-change techniques to help bca survivors increase their physical activity.