Cited by 20Cancer survivorship and carePhysical Activity and HealthCOVID-19 and healthcare impacts

Physical activity for cancer patients during COVID-19 pandemic: A call to action

Open access
Rezende, Leandro F. M., Lee, Dong Hoon, Ferrari, Gerson, Eluf-Neto, José, Giovannucci, Edward L.·2021·Cancer Causes & Control

Abstract

Self-isolation is strongly recommended for cancer patients during the COVID-19 pandemic, but may lead to physical inactivity and prolonged sitting time. The benefits of physical activity for cancer patients are manifold, such as reduced anxiety, fewer depressive symptoms, less fatigue, better quality of life, and improved physical function. In the last decade, several oncology-related organizations have provided guidance and summarized the evidence on the role of physical activity for cancer survivors. In this comment, we provide a brief summary of these recommendations and benefits of physical activity for cancer patients; and we recommend that oncologists and health practitioners should promote an active lifestyle for these patients during the pandemic and thereafter. Suggestions for implementing these actions in the clinical settings are also provided.

Integrity signals

Registry

Crossref · 10.1007/s10552-020-01367-0

Cites

9 of 9 references verified0 citation errors · 0 not checkable

Statistics

Nothing to recompute.

Claims the paper makes

0 of 14 cited sources checked · 0 supported · 0 flagged

  • Premisecitation

    In Brazil, only 45% of people with cancer meet physical activity guidelines.

    “In Brazil, only 45% of people with cancer meet physical activity guidelines [11].”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [11] Azevedo e Silva G, de Rezende LF, Gomes Fda S, de Souza Junior PR, Szwarcwald CL, Eluf Neto J (2016) Lifestyle among former cancer patients in Brazil in 2013. Cien Saude Colet 21:379–388 source

      Not checked in the free run.

  • Premisecitation

    In the USA and UK, only about one third to 45% of cancer patients accumulated at least 150 minutes of moderate-to-vigorous physical activity per week.

    “Data from USA and UK cancer patients suggested that only approximately a third to 45% of the patients accumulated at least 150 min of moderate to vigorous physical activity per week [7].”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [7] Campbell KL, Winters-Stone KM, Wiskemann J et al (2019) Exercise guidelines for cancer survivors: consensus statement from international multidisciplinary roundtable. Med Sci Sports Exerc 51:2375–2390 source

      Not checked in the free run.

  • Premisecitation

    Physical activity, especially after diagnosis, is associated with better survival from breast, colon, and prostate cancers.

    “The comprehensive literature review of the ACSM Multidisciplinary Roundtable on Exercise and Cancer also suggested that physical activity, particularly postdiagnosis, is associated with improved survival from breast, colon, and prostate cancers [7].”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites [7] Campbell KL, Winters-Stone KM, Wiskemann J et al (2019) Exercise guidelines for cancer survivors: consensus statement from international multidisciplinary roundtable. Med Sci Sports Exerc 51:2375–2390 source

      Not checked in the free run.

  • Premisecitation

    Scientific evidence is unclear about the best type or domain of physical activity for people with cancer.

    “Of note, scientific evidence is not clear about the best type or domain of physical activity for people with cancer [8]; thus, guidelines suggest to include physical activity as part of everyday life [6].”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites [8] Friedenreich CM, Stone CR, Cheung WY, Hayes SC (2019) Physical activity and mortality in cancer survivors: a systematic review and meta-analysis. JNCI Cancer Spectrum 4:pkz080 source

      Not checked in the free run.

  • Premisecitation

    In cancer survivors, high versus low physical activity before diagnosis is associated with improved overall survival (HR 0.82, 95% CI 0.79-0.86).

    “High vs. low physical activity prediagnosis (hazard ratio 0.82; 95% confidence interval 0.79–0.86)”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [8] Friedenreich CM, Stone CR, Cheung WY, Hayes SC (2019) Physical activity and mortality in cancer survivors: a systematic review and meta-analysis. JNCI Cancer Spectrum 4:pkz080 source

      Not checked in the free run.

  • Classified as probably not a substantial claim. 1
  • May combine two claims. 3
  • Probably not a substantial claim: may not pass S4 (based).

    Interpretationnone given

    The COVID-19 pandemic and its social distancing and isolation policies have created a sedentaryogenic environment that makes meeting physical activity guidelines especially challenging for people with cancer.

    “The COVID-19 pandemic and its social distancing and isolation policies have created a “sedentaryogenic” environment where meeting physical activity guidelines becomes especially challenging for people with cancer.”
    Quote in the paperNot a substantial claim
    • Rests on an assumption: Self-isolation may lead to physical inactivity and prolonged sitting time in cancer patients.
  • May combine two claims.

    Premisecitation

    Physical inactivity and prolonged sitting are highly prevalent among cancer patients.

    “Physical inactivity (not meeting the physical activity guidelines) and prolonged sitting time are highly prevalent among cancer patients, partially due to persistent symptoms such as fatigue, which may contribute to these behaviors in addition to self-isolation measures.”
    Quote in the paperSubstantial claim0 of 2 sources checked
    • cites [7] Campbell KL, Winters-Stone KM, Wiskemann J et al (2019) Exercise guidelines for cancer survivors: consensus statement from international multidisciplinary roundtable. Med Sci Sports Exerc 51:2375–2390 source

      Not checked in the free run.

    • cites [11] Azevedo e Silva G, de Rezende LF, Gomes Fda S, de Souza Junior PR, Szwarcwald CL, Eluf Neto J (2016) Lifestyle among former cancer patients in Brazil in 2013. Cien Saude Colet 21:379–388 source

      Not checked in the free run.

  • May combine two claims.

    Premisecitation

    Physical activity is safe and effective for reducing anxiety, depressive symptoms, and fatigue, and for improving quality of life and physical function in cancer survivors.

    “The benefits of physical activity for cancer patients are manifold, such as reduced anxiety, fewer depressive symptoms, less fatigue, better quality of life, and improved physical function.”
    • Also stated in: § Main · boosted
      “In summary, strong scientific evidence supports the safety and efficacy of physical activity to address several health benefits for cancer survivors, including reduced anxiety, fewer depressive symptoms, less fatigue, better quality of life, and improved physical function [7].”
    • Also stated in: § Main · boosted
      “Strong epidemiological evidence supports the safety and efficacy of physical activity to address important health outcomes for cancer patients [7].”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites [7] Campbell KL, Winters-Stone KM, Wiskemann J et al (2019) Exercise guidelines for cancer survivors: consensus statement from international multidisciplinary roundtable. Med Sci Sports Exerc 51:2375–2390 source

      Not checked in the free run.

  • May combine two claims.

    Premisecitation

    Patients with cancer have a higher risk of ICU admission, invasive ventilation, or death from COVID-19 than patients without cancer, due to immunosuppression from the disease and its treatments.

    “Patients with cancer have higher risk of being admitted to intensive care unit requiring invasive ventilators or dying from COVID-19 than patients without cancer due to their systemic immunosuppressive state induced by the disease and its pharmacological treatments [5].”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites [5] Liang W, Guan W, Chen R et al (2020) Cancer patients in SARS-CoV-2 infection: a nationwide analysis in China. Lancet Oncol 21:335–337 source

      Not checked in the free run.

4 of 4
  • The paper relies on this without support.

    Self-isolation may lead to physical inactivity and prolonged sitting time in cancer patients.

    “Self-isolation is strongly recommended for cancer patients during the COVID-19 pandemic, but may lead to physical inactivity and prolonged sitting time.”
    “Physical inactivity (not meeting the physical activity guidelines) and prolonged sitting time are highly prevalent among cancer patients, partially due to persistent symptoms such as fatigue, which may contribute to these behaviors in addition to self-isolation measures.”
  • The paper relies on this without support.

    Social isolation policies have reduced follow-up visits for regular pharmacological cancer treatment and adherence to non-pharmacological recommendations such as physical activity.

    “At the same time, however, social isolation policies have reduced follow-up visits for regular pharmacological cancer treatment, as well as adhering to non-pharmacological recommendations such as physical activity.”
  • The paper relies on this without support.

    Cancer patients are less likely to attend follow-up visits during the COVID-19 pandemic, which reduces opportunities to discuss physical activity.

    “In addition, cancer patients are less likely to attend follow-up visits during the COVID-19 pandemic, which further reduces the opportunities to discuss the importance of physical activity during and after treatment.”
    “During COVID-19 pandemic, people with cancer are less likely to attend follow-up visits, which might reduce the opportunities for evidence-based counseling.”
3 of 3

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • A negative consequence of self-isolation was physical inactivity and prolonged sitting, as well as increased anxiety, depressive symptoms, and increased fatigue.

    “A negative consequence of self-isolation was physical inactivity and prolonged sitting, as well as increased anxiety, depressive symptoms, and increased fatigue [28].”

    From The Effect of Vinyasa Yoga Practice on the Well-Being of Breast-Cancer Patients during COVID-19 Pandemic (2023) · cites this paper as [28]

    The Abstract says self-isolation may lead to physical inactivity and prolonged sitting among cancer patients. The Main section says physical activity can reduce anxiety, depressive symptoms, and fatigue, but it does not say self-isolation increased those symptoms. The citing sentence also omits the paper’s cancer-patient context. (LLM, conf=0.85)

    Experimental — accuracy not yet measured

Cites

Flagged first, then by citations

Research works printed but not linked: 1

  1. Ferlay J et al (2018) Global cancer observatory: cancer today. International Agency for Research on Cancer, Lyon. Available from: https://gco.iarc.fr/today. Accessed 8 May 2020

Cited by

Sorted by citations

Authors
Rezende, L. F. M., Lee, D. H., Ferrari, G., Eluf-Neto, J., & Giovannucci, E. L.
Affiliations
  • Universidade Federal de São Paulo (BR)
  • Harvard University (US)
  • Brigham and Women's Hospital (US)
Corresponding author
Rezende, Leandro F. M.
Venue
Cancer Causes & Control
Published
2020-11-16
Volume
32
Issue
1
Pages
1-3
ISSN
  • 0957-5243 (ISSN-L)
  • 1573-7225
OpenAlex
W3102692092
Cited by
20
References
9
Citations by year
2026: 1 · 2024: 4 · 2023: 5 · 2022: 7 · 2021: 3
FWCI
1.35
Type
journal article
Language
en
Open access
Locations
  • Cancer Causes & Control (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Fundação de Amparo à Pesquisa do Estado de São Paulo (2018/23941-9)
  • Conselho Nacional de Desenvolvimento Científico e Tecnológico (442658/2019-2)
Topics
  • Health Sciences › Medicine › Oncology › Cancer survivorship and care
  • Health Sciences › Medicine › Physiology › Physical Activity and Health
  • Health Sciences › Medicine › Oncology › COVID-19 and healthcare impacts
Keywords
physical activity, cancer patients, COVID-19 pandemic, self-isolation, physical inactivity, prolonged sitting, cancer survivors, anxiety, depressive symptoms, fatigue, quality of life, physical function, clinical guidelines, active lifestyle promotion
MeSH terms
Cancer Survivors, COVID-19, SARS-CoV-2, Anxiety, Fatigue, Humans, Life Style, Neoplasms, Quality of Life, Exercise, Pandemics

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Claims read by deepseek-v4.1-flash under definition version 3 (extract-v3) on 2026-09-28.

Classified by jev-1.13-20260917 (gold-guideline-v0.2) on 2026-09-28.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review