A new study women and men age 50 to 90 who started resistance training exercise programs, finding that though men were more likely to gain absolute muscle size, their gains were on par with women relative to body size.
Days before a global rollout kicks off with the President of Indonesia receiving the Sinovac Biotech Ltd. vaccine on live television, uncertainty swirls over the efficacy of the leading Chinese shot, for which four different protection rate numbers have been released in recent weeks.
AFP /AFP via Getty Images
Authorities in Australia have responded swiftly to contain potential outbreaks of the UK variant of SARS-CoV-2, the virus that causes covid-19.
On Thursday 7 January, a cleaner for a hotel quarantine facility in Brisbane tested positive for the more contagious B.1.1.7 variant, first sequenced in the UK in September, which has now reached at least 45 countries.
Advertisement
The variant has previously been detected in returning international passengers in hotel quarantine, but this is the first time someone had unknowingly been in the Australian community while potentially infectious.
The following morning, with no further positive cases, Queensland state Premier Annastacia Palaszczuk announced a short, citywide circuit-breaker lockdown affecting some 2 million residents.
ANGELA WEISS/AFP via Getty Images
The highly contagious B.1.1.7. variant of the coronavirus, which was first detected in the UK, has officially reached 10 states in the US, but infectious disease experts say the true extent of its spread is unclear due to a lack of monitoring.
Texas, Minnesota and New York are among the states that have detected the variant. Given it has been found in 10 states, it is likely to be present in more, says Lane Warmbrod at Johns Hopkins University in Maryland. Still, she says, “it is hard to know how widespread the variant is because we don’t have sufficient genetic epidemiology capacity or capability in the US”.
Historically, people tended to believe that men adapted to a greater degree from resistance training compared to women, said senior study author Amanda (Mandy) Hagstrom, exercise science lecturer at the University of New South Wales in Sydney, Australia.