Plumbing Connection 4-2015

92 / 116

temperature than a cold drink served
at 4ºC, and is likely to lead to increased
productivity in workers.
In a review article on crushed ice
ingestion for the J ournal of Military
and Veterans’ Health, Matt discussed
a trial that monitored cyclists during
a 40km time trial where power output
was increased by 6.9% in those who had
ingested crushed ice.
Another trial discussed, evaluated
moderately trained runners and
found they were able to run for nearly
10 minutes longer after crushed ice
ingestion than those who consumed
cold water – 50.2 minutes rather
than 40.7.
In both studies, participants
consumed around 600g of crushed ice
during the 30 minutes prior to exercise.
However, Matt says that when
allowing workers to self-regulate
their consumption of ice, they may not
consume this much, or may let the ice
melt before consumption, eliminating
its benefits.
He discussed evidence of this
reduced consumption being found
in two trials on participants in
occupational settings – one on
firefighters and the other miners –
suggesting the “crushed ice ingestion
may diminish the drive to drink”
potentially manifesting in dehydration if
enough fluids are not consumed.
Despite this, he concluded that
crushed ice is a worthy tool for
reducing heat stress in the workplace
and suggested having both crushed
ice and cold fluids readily available
as part of a greater heat stress
management strategy that includes
monitoring workers.
Thorzt
Thorzt offers a mix of BCAAs and low
Gi carbohydrates to make working in
the harshest environments tolerable.