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Wearing a bra that is too tight affects breathing and energy.

Báo Tuổi TrẻBáo Tuổi Trẻ15/03/2024


Áo ngực thể thao quá chật khiến nữ giới thở nông hơn và thở thêm vài hơi mỗi phút - Ảnh: Unitru

Sports bras that are too tight make women breathe more shallowly and take a few more breaths per minute - Photo: Unitru

The study was conducted by researchers at the University of British Columbia. They monitored the respiratory and lung function of professional athletes on a treadmill, while asking them to tighten, loosen or leave their bras at their normal level, then observed the changes.

Tight bras damage lungs

Research shows that wearing a tight sports bra makes women breathe more shallowly and take a few more breaths per minute. Conversely, when the bra straps are loosened, they consume less oxygen at a given pace.

Experts recommend that runners wear a sports bra that offers moderate support, but is not too tight around the rib cage.

“People ask what sports bra they should wear? I tell them to wear the one that fits,” said Shalaya Kipp, lead author of the study and now a postdoctoral fellow at the Mayo Clinic in Minnesota.

The authors hypothesize that when a bra is too tight around the rib cage, respiratory or lung function may be compromised. The reduced lung function makes breathing more difficult, which is especially important when exercising or performing daily physical activities.

To measure this, researchers passed a tube up the participants’ nose and down their esophagus. While they ran on a treadmill, they were asked to adjust the tightness of their shirts.

Researchers found that runners were able to breathe more deeply and run more efficiently when their bras were looser, which affected both performance and comfort during exercise.

Choose clothes as carefully as choosing shoes

Research shows that loosening your shirt improves running efficiency by 1.3%. That may not seem like much, but for a three-hour marathon runner, a 2% improvement in efficiency translates to a 3-minute increase in speed—enough to make or break a race.

Olympic distance runner Kim Conley, who was not involved in the study, admits she never paid attention to how tight sports bras were and how much breathing she had to do while wearing them.

“For a professional runner, that's important, especially as qualifying standards get tougher. Everyone is looking for that 1% performance gain,” she says.

Boston resident Laura Hernandez is training for her first marathon this year. For the 25-year-old, choosing the right workout bra is as important as choosing the right pair of sneakers.

Shalaya Kipp, the study's lead author, advises girls to try on sports bras like they would running shoes. Breathe, move, and feel.

Thể thao có tác động gì với sức khỏe nữ giới? What impact does sport have on women's health?

A global survey by Women in Sport found that only 30% of parents want their daughters to take sport seriously, compared to nearly 50% for boys.



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