Acta Scientific Orthopaedics (ISSN: 2581-8635)

Research Article Volume 5 Issue 7

Pandemic Effect on Body Composition. Single-Center Analysis of 2.771 Cases

Fabrício Braga1,2*, Roberto Zagury1, Cristiane Perroni1 and Victor Hugo Domecg1

1Laboratório de Performance Humana, Brazil
2Casa de Saúde São José, R. Macedo Sobrinho, Humaitá, Rio de Janeiro - RJ, Brazil

*Corresponding Author: Fabrício Braga, Laboratório de Performance Humana, Brazil.

Received: April 19, 2022; Published: June 17, 2022


Background: The SARSCOV-2 pandemic has led to a dramatic increase in the levels of sedentary lifestyles and unhealthy dietary habits. A worsening in populational obesity levels and body composition (BC) is strongly awaited but has not yet been documented.

Objective: To compare the BC profile measured by bioelectrical impedance analysis (BIA) between prepandemic (P1-03/15/2017 to 03/16/2020) and pandemic (P2-3/17/2020 to 3/10/2021) periods.

Materials and Methods: BIA was grouped according to the time it was performed. Two comparisons were made: an independent sample comparison (ISC) and a paired sample comparison (PSC), considering patients with at least one BIA in P1 and P2. Age, height, sex, weight, body mass index (BMI), body fat mass (BFM), free fat mass (FFM), skeletal muscle mass (SMM), percentage of body fat (PBF), and visceral fat area (VFA) were compared. The statistical significance level was defined for a p value < 0.05.

Results and Discussion: 3.358 BIA was performed, and 2.771 and 112 were selected for IS and PS, respectively. In ISC, despite an unchanged weight, BFM, FFM, PBF, and VFA increased, and SSM decreased on P2 (p < 0.015 for all). Using PBF as a dependent variable, a multivariate linear regression model showed P2 as an independent predictor (β = 0.38 95% CI 0.19 to 0.56). In the PSC, PBF also increased from P1 to P2 (p = 0.015). To our knowledge, this is the first documentation of worsening BC after the pandemic. Health authorities should be alert to this phenomenon and its clinical consequences in the future.

Keywords: SARS-CoV-2 Pandemic; Body Composition; Bioelectrical Impedance Analysis


  1. Ferrante G., et al. “Did social isolation during the SARS-CoV-2 epidemic have an impact on the lifestyles of citizens?” Epidemiologia e Prevenzione5-6 (2020): 353-362.
  2. Zheng C., et al. “COVID-19 Pandemic Brings a Sedentary Lifestyle in Young Adults: A Cross-Sectional and Longitudinal Study”. International Journal of Environmental Research and Public Health17 (2020).
  3. Robillard R., et al. “Social, financial and psychological stress during an emerging pandemic: observations from a population survey in the acute phase of COVID-19”. BMJ Open12 (2020): e043805.
  4. Henschel B., et al. “Time Spent Sitting as an Independent Risk Factor for Cardiovascular Disease”. American Journal of Lifestyle Medicine2 (2020): 204-215.
  5. Stamatakis E., et al. “Sitting Time, Physical Activity, and Risk of Mortality in Adults”. Journal of the American College of Cardiology16 (2019): 2062-2072.
  6. Chen GC., et al. “Association between regional body fat and cardiovascular disease risk among postmenopausal women with normal body mass index”. European Heart Journal34 (2019): 2849-2855.
  7. Vasan SK., et al. “Comparison of regional fat measurements by dual-energy X-ray absorptiometry and conventional anthropometry and their association with markers of diabetes and cardiovascular disease risk”. International Journal of Obesity 4 (2018): 850-857.
  8. Williams MJ., et al. “Regional fat distribution in women and risk of cardiovascular disease”. The American Journal of Clinical Nutrition3 (1997): 855-860.
  9. Kyle UG., et al. “Bioelectrical impedance analysis - Part I: Review of principles and methods”. Clinical Nutrition5 (2004): 1226-1243.
  10. Calina D., et al. “COVID-19 pandemic and alcohol consumption: Impacts and interconnections”. Toxicology Reports 8 (2021): 529-535.
  11. Chiwona-Karltun L., et al. “COVID-19: From health crises to food security anxiety and policy implications”. Ambio4 (2021): 794-811.
  12. Clemmensen C., et al. “Will the COVID-19 pandemic worsen the obesity epidemic?” Nature Reviews. Endocrinology9 (2020): 469-470.
  13. Zeng Q., et al. “Percent body fat is a better predictor of cardiovascular risk factors than body mass index”. Brazilian Journal of Medical and Biological Research Revista Brasileira de Pesquisas Medicas e Biologicas7 (2020): 591-600.
  14. Nagaya T., et al. “Body mass index (weight/height2) or percentage body fat by bioelectrical impedance analysis: which variable better reflects serum lipid profile?” International Journal of Obesity and Related Metabolic Disorders : Journal of the International Association for the Study of Obesity7 (1999): 771-774.
  15. Lechner I., et al. “Impact of COVID-19 pandemic restrictions on ST-elevation myocardial infarction: a cardiac magnetic resonance imaging study”. European Heart Journal11 (2022): 1141-1153.


Citation: Fabrício Braga., et al. “Pandemic Effect on Body Composition. Single-Center Analysis of 2.771 Cases".Acta Scientific Orthopaedics 5.7 (2022): 102-106.


Copyright: © 2022 Fabrício Braga., et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.


Acceptance rate33%
Acceptance to publication20-30 days

Indexed In

News and Events

  • Certification for Review
    Acta Scientific certifies the Editors/reviewers for their review done towards the assigned articles of the respective journals.
  • Submission Timeline for Upcoming Issue
    The last date for submission of articles for regular Issues is May 30, 2024.
  • Publication Certificate
    Authors will be issued a "Publication Certificate" as a mark of appreciation for publishing their work.
  • Best Article of the Issue
    The Editors will elect one Best Article after each issue release. The authors of this article will be provided with a certificate of "Best Article of the Issue"
  • Welcoming Article Submission
    Acta Scientific delightfully welcomes active researchers for submission of articles towards the upcoming issue of respective journals.

Contact US