Advertisement

Electric Fan Use may be Detrimental for Elderly During Heat Waves

by Shirley Johanna on  September 6, 2016 at 11:06 PM Senior Health News
RSS Email Print This Page Comment
Font : A-A+

The use of electric fans delay elevations in heart rate and core temperature of young adults exposed to 108°F. But, electric fans could be harmful to elderly, claims a new study.
 Electric Fan Use may be Detrimental for Elderly During Heat Waves
Electric Fan Use may be Detrimental for Elderly During Heat Waves

Researchers from the University of Texas Southwestern Medical Center, Dallas, examined whether electric fan use would delay elevations in heart rate and core temperature of elderly adults exposed to extreme heat and humidity. The study was conducted by Craig G. Crandall, Ph.D., of the University of Texas Southwestern Medical Center and his colleagues.

It remains unknown if fans are effective in vulnerable populations, such as the elderly who display altered cardiovascular and thermoregulatory responses during heat exposure. This study included three men and six women volunteers (average age, 68 years). Wearing shorts (men) or shorts and a sports bra (women), participants sat in a chamber maintained at 108°F.

After 30 minutes at a relative humidity of 30 percent, relative humidity was increased 2 percent every 5 minutes to 70 percent (100 minutes total). On separate randomly assigned days, participants performed the protocol with or without a 16-in fan facing them from about 3 feet. No fluid intake was allowed during the protocol. Measurements taken included heart rate, core temperature, and sweat loss.

The researchers found that fan use resulted in greater heart rate and core temperature. "Although differences were small, their cumulative effect may become clinically important with fan use during more prolonged heat exposure. Fan use elevates sweat loss in young adults. This was not observed in elderly adults, suggesting that age-related impairments in sweating capacity possibly limit the effectiveness of electric fans. Overall, this preliminary study indicates that electric fans may be detrimental for attenuating cardiovascular and thermal strain of elderly adults during heat waves."

The study appears in JAMA.

Source: Eurekalert

Post a Comment

Comments should be on the topic and should not be abusive. The editorial team reserves the right to review and moderate the comments posted on the site.
Notify me when reply is posted
I agree to the terms and conditions

More News on:

Diseases Related to Old Age 

News A - Z

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

News Search

Advertisement

Medindia Newsletters

Subscribe to our Free Newsletters!

Terms & Conditions and Privacy Policy.

Advertisement
Advertisement

Stay Connected

  • Available on the Android Market
  • Available on the App Store

Facebook

News Category

News Archive