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Study links heavy cellphone use with poor fitness levels

  • Published Tuesday, July 23, 2013, at 12 a.m.

People who constantly exercise their thumbs by using their smartphones could ultimately be harming their physical health.

A new study by researchers at Kent State University found a link between heavy cellphone use and reduced fitness levels among college students.

Researchers Andrew Lepp and Jacob E. Barkley, associate professors in Kent State’s College of Education, Health and Human Services, found college students who reported the highest cellphone use – averaging 14 hours a day – were less fit than those who used the devices less often.

“There’s no ‘phone potato’ term, but maybe there should be,” Barkley said. “We’re just scratching the surface here. I don’t think they think about the consequences of sitting and playing with your phone.”

Lepp and Barkley decided to conduct the study to see whether using cellphones — despite their portability — shared the same ties to inactivity as playing traditional video games and watching TV.

“There’s been evidence that those types of behaviors that are defined as sedentary are inversely related to fitness,” Barkley said. “The phones now, especially the smartphones, offer access to all those behaviors we have defined as sedentary.”

The researchers surveyed more than 300 Kent State students about their cellphone use and broke them into three categories: low users who averaged 101 minutes daily, moderate users averaging 283 minutes and high users averaging 840 minutes.

Activities that counted toward the total include making calls, texting, sending or reading e-mails, playing games, surfing the Internet, watching videos and using social media. Listening to music wasn’t included.

Students were given a test similar to a stress test to measure cardiorespiratory fitness.

“If you were someone who used the phone a lot,” Barkley said, “you were less fit.”

One explanation: Frequent cellphone users were more likely to report missing out on physical activities such as walking, running, swimming, working out or playing basketball, soccer, football, lacrosse or racquetball to use their devices.

Results were published recently by the International Journal of Behavioral Nutrition and Physical Activity.

Akron Beacon Journal

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