COVID-19 lockdown consequences on body mass index and perceived fragility related to physical activity: a worldwide cohort study

The Covistress Network, Constanta Urzeala, Martine Duclos, Ukadike Chris Ugbolue, Aura Bota, Mickael Berthon, Keri Kulik, David Thivel, Reza Bagheri, Yaodong Gu, Julien S Baker, Nicolas Andant, Bruno Pereira, Karine Rouffiac, Maëlys Clinchamps, Frédéric Dutheil

Research output: Contribution to journalArticlepeer-review

1 Downloads (Pure)


BackgroundThis paper is a follow-up study continuing the COVISTRESS network previous research regarding health-related determinants.ObjectiveThe aim was to identify the main consequences of COVID-19 lockdown on Body Mass Index and Perceived Fragility, related to Physical Activity (PA), for different categories of populations, worldwide.DesignThe study design included an online survey, during the first wave of COVID-19 lockdown, across different world regions.Setting and participantsThe research was carried out on 10 121 participants from 67 countries. The recruitment of participants was achieved using snowball sampling techniques via social networks, with no exclusion criteria other than social media access.Main outcome measuresBody Mass Index, Physical Activity, Perceived Fragility and risk of getting infected items were analysed. SPSS software, v20, was used. Significance was set at P < .05.ResultsBody Mass Index significantly increased during lockdown. For youth and young adults (18-35 years), PA decreased by 31.25%, for adults (36-65 years) by 26.05% and for the elderly (over 65 years) by 30.27%. There was a high level of Perceived Fragility and risk of getting infected for female participants and the elderly. Correlations between BMI, Perceived Fragility and PA were identified.Discussion and conclusionsThe research results extend and confirm evidence that the elderly are more likely to be at risk, by experiencing weight gain, physical inactivity and enhanced Perceived Fragility. As a consequence, populations need to counteract the constraints imposed by the lockdown by being physically active.
Original languageEnglish
Pages (from-to)522-531
Number of pages10
JournalHealth Expectations
Issue number2
Early online date9 Jun 2021
Publication statusE-pub ahead of print - 9 Jun 2021


  • health
  • pandemic
  • vulnerable populations


Dive into the research topics of 'COVID-19 lockdown consequences on body mass index and perceived fragility related to physical activity: a worldwide cohort study'. Together they form a unique fingerprint.

Cite this