Over the next month, thousands of high school and college football teams will get ready for fall by practicing in torrid conditions where heatstroke is a constant danger.
That has some trainers and doctors worried about increasingly popular thermometers that, in their view, sacrifice accuracy for convenience.
The devices use infrared light to scan heat radiation in the ear or on the forehead.
The infrared thermometers have produced lower readings in athletic settings -- or in lab tests meant to simulate them -- than rectal thermometers or other devices.
Forehead scanner
After testing a forehead scanner that is made by Exergen, researchers with the Institute for Exercise and Environmental Medicine at Presbyterian Hospital in Dallas, Texas, warned that low readings from the device could deprive patients of critical, perhaps lifesaving medical care.
In the test in the journal Medicine and Science in Sports and Exercise, the infrared thermometer gave readings below 37.8oC when rectal thermometers topped 40oC, a temperature at which some patients begin to become vulnerable to heatstroke.
Douglas Casa, the director of athletic training education at the University of Connecticut who completed a study of 10 types of thermometers used in intense training situations, said the infrared forehead and ear scanners were among those producing misleadingly low readings in his test.
Similar conclusions
And William Roberts, a University of Minnesota researcher and former president of the American College of Sports Medicine, said his tests of the forehead device on runners in the Medtronic Twin Cities Marathon led him to similar conclusions.
Both have submitted their results to peer-reviewed journals.
Exergen said that it was apparent from the report on the Texas test, which used healthy subjects in heated wet suits, that the researchers did not duplicate realistic conditions for athletes.
Exergen also said that the thermometer, the Temporal Scanner, was not marketed for use in athletic settings and came with instructions specifically stating that it was not for outdoor use.
That goes for both the consumer version, which costs US$30 to US$50 at drugstores and other chains, and a more durable model sold for about US$350 to doctors' offices and hospitals, it said.
Boston Marathon
The company Web site includes a 2005 news release noting that its thermometers had been used for 17 years at the Boston Marathon.
But Francesco Pompei, the company president, said the release made it clear that the device had required special handling at the marathon.
The changes, including use of a piece of film to deal with perspiration, have been shared with a small number of trainers who sought more information for their own studies, Pompei said.
"We use sports medicine for research," he said. "But we are not selling into the athletic market."
He added that the association with the Boston Marathon, which began in 1989, ended last year with the retirement of Marvin Adler, longtime medical director of the race.
Something simpler
Critics said the device might attract coaches looking for something simpler than rectal thermometers and less costly than the most accurate devices available outside of hospitals -- radio-transmitting temperature-sensing pills that athletes swallow.
Pompei said his company would be glad to work with critics to discourage using the Temporal Scanner in athletic settings.
But a broader battle may loom.
Benjamin Levine, a physician who took part in the Dallas test, said the scanner should not be used in any setting, even though 30 percent of Texas hospitals now use it or a similar device.
Novation, a hospital purchasing group, said its members bought more than US$1 million worth of them last year and had not heard any complaints.
Taiwanese world No. 1 women’s doubles star Hsieh Su-wei on Saturday overcame a first-set loss to win her opening match at the Madrid Open. Top seeds Hsieh and partner Elise Mertens of Belgium, with whom she last month won her fourth Indian Wells women’s doubles title, bounced back from a rocky first set to beat Asia Muhammad of the US and Aldila Sutjiadi of Indonesia 2-6, 6-4, 10-2. Hsieh and Mertens were next to face Heather Watson of the UK and Xu Yifan of China in the round of 16. Thirty-eight-year-old Hsieh last month reclaimed her world No. 1 spot after her Indian
EYES ON THE PRIZE: Armed with three solid men’s singles shuttlers and doubles Olympic champions, Taiwan aim to make their first Thomas Cup semi-final, Chou Tien-chen said Taiwanese badminton star Tai Tzu-ying yesterday quickly dispatched Malaysia’s Goh Jin Wei in straight sets, while her male counterpart Chou Tien-chen beat Germany’s Kai Schaefer, as Taiwan’s women’s and men’s teams won their Group B opening rounds of the TotalEnergies BWF Thomas and Uber Cup Finals in Chengdu, China. World No. 5 Tai beat Goh 21-19, 22-20 in a speedy 33 minutes, her fourth straight victory over the world No. 24 shuttler since they first faced each other in the quarter-finals of the 2018 Malaysia Open, where Tai went on to win the women’s singles title. Malaysia followed up Tai’s opening victory
Chen Yi-tung (陳奕通) secured a historic Olympic berth on Sunday by winning the senior men’s foil event at the 2024 Asia Oceania Zonal Olympic Fencing Qualifiers in United Arab Emirates. Chen defeated Samuel Elijah of Singapore 15-4 in the final in Dubai to secure the only wild card in the event, making him the first male Olympian fencer from Taiwan in 36 years and only the sixth Taiwanese fencer to ever qualify for the quadrennial event. The last appearance by a Taiwanese male fencer at the Olympics was in 1988, when Wang San-tsai (王三財) and Cheng Ming-hsiang (鄭明祥) competed in Seoul. The
Rafael Nadal on Tuesday lost in straight sets to 31st-ranked Jiri Lehecka in the fourth round at the Madrid Open, while Taiwan’s Hsieh Su-wei advanced to the semi-finals in the women’s doubles. Nadal said that he was feeling good about his progress following his latest injury layoff. Nadal called it a “positive week” in every way and said his body held up well. “I was able to play four matches, a couple of tough matches,” Nadal said. “So very positive, winning three matches, playing four matches at the high level of tennis. I enjoyed a lot playing at home. I leave here with