news
T
aking antihistamines prior
of Copenhagen and published
to a workout can prevent
in the Science Advances
the body getting the
journal, the study also
full benefit of exercise.
found that antihistamines
A new study found
decreased aerobic capacity,
antihistamines reduce
blocked the improvements
normal increases in blood
that exercise has on
flow to the muscles by 35
circulation and the body’s
per cent during exercise.
ability to tolerate glucose.
Conducted by Ghent
SHUTTERSTOCK/MARIDAV
Antihistamines can block the benefits of exercise
Antihistamines are a
University and the University
common drug used by hay fever GHENT UNIVERSITY
sufferers and many take some before exercising outdoors. Senior author on the study, sport scientist Professor
Many take antihistamines prior to exercising outdoors
Dr Wim Derave, told HCM:
One cause of the blunted training adaptations is a reduced post-exercise muscle perfusion
“Exercise training induces
transducer of the adaptive
adaptations in key
health-promoting adaptations
exercise training response,
regulatory proteins.
to multiple organ systems,
with broad clinical relevance:
orchestrated by an interplay
aerobic capacity, glycemic
cause of the blunted
between various exercise
control, and vascular function.
training adaptations is a
factors and signalling events. “In the present study, we
Dr Wim Derave
“These detrimental effects of H1/H2 blockade
show that histamine H1/
on functional outcomes
H2 signaling is an essential
were caused by impaired
“One potential functional
substantially reduced postexercise muscle perfusion.” More: http://lei.sr/A7h4g_H
at Imperial College London, which is awaiting peer-review,
suggests the risk of COVID-19 transmission in swimming
IMPERIAL COLLEGE
A
study by virologists
SHUTTERSTOCK/WALLENROCK
Swimming pool water kills COVID virus in 30 seconds
pool water is “incredibly low”. The study looked at the effects of swimming pool
By mixing the virus with swimming pool water, we could show that the virus does not survive
water on SARS-CoV-2, the virus which causes COVID-19, to assess the amount of time and contact needed to inactivate the virus in varying
The study looked at the effects of pool water on SARS-CoV-2
Wendy Barclay
chlorine and pH levels. The research established
30
Additional testing of
with current guidance for
that 1.5mg per litre of free
different free chlorine and
swimming pool operation.
chlorine, coupled with a
pH ranges confirmed that
The research study was
pH between 7-7.2 reduced
chlorine in swimming pool
undertaken by virologist and
the infectivity of the virus
water was more effective
expert in respiratory viruses,
1,000-fold within 30 seconds.
with a lower pH. This is in line
Professor Wendy Barclay.
Issue 4 2021 ©Cybertrek 2021
“By mixing the virus with swimming pool water, we could show the virus doesn’t survive,” she told HCM. More: http://lei.sr/S5t7k_H
