The combination of heavy respiration and being indoors is not ideal – however, gyms across the UK have taken considerable precautions to prevent any spread.
Despite all this, the Government has lent its support to gyms and those who want to return, given that good physical fitness is a key requirement for successfully fighting off the deadly disease.
The review of evidence by Public Health England found excess weight put people at greater risk of needing hospital admission or intensive care.
The risk also grew substantially as weight increased.
The UK has one of the highest levels of obesity in Europe.
Almost two-thirds of adults in England are overweight or obese, with similar figures in Wales, Scotland and Northern Ireland.