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Weight loss in obese adults can reduce severity of asthma

Date:
June 8, 2015
Source:
American College of Chest Physicians
Summary:
Weight loss reduced asthma severity as measured by airway hyperresponsiveness in obese adults, a research study has shown. The incidence of asthma is 1.47 times higher in obese people than nonobese people, and a three-unit increase in body mass index is associated with a 35 percent increase in the risk of asthma. The study supports the active treatment of comorbid obesity in individuals with asthma.
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A Canadian study published in the June issue of the journal CHEST found weight loss reduced asthma severity as measured by airway hyperresponsiveness (AHR) in obese adults. The incidence of asthma is 1.47 times higher in obese people than nonobese people, and a three-unit increase in body mass index is associated with a 35% increase in the risk of asthma. The study supports the active treatment of comorbid obesity in individuals with asthma.

The study, the first of its kind to rely on appropriate physiologic tests as diagnostic criteria for asthma, found normalization or improvements in AHR, asthma control, and quality of life.

"While previous studies have examined the relationship between asthma severity and obesity, this study is unique because of its strict adherence to an accurate diagnostic criteria and study outcome (AHR), resulting in purer results to support weight loss as a strategy to normalize or reverse asthma in this group of people hit very hard by the condition," said Smita Pakhale, MD, Department of Medicine, The Ottawa Hospital and University of Ottawa. "We were pleased to see significant improvement in asthma symptoms, as well as quality of life for these individuals. This study further supports the need to manage comorbidities to improve patient lives."


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Materials provided by American College of Chest Physicians. Note: Content may be edited for style and length.


Journal Reference:

  1. Smita Pakhale, Justine Baron, Robert Dent, Katherine Vandemheen, Shawn D. Aaron. Effects of Weight Loss on Airway Responsiveness in Obese Adults With Asthma. CHEST Journal, 2015; 147 (6): 1582 DOI: 10.1378/chest.14-3105

Cite This Page:

American College of Chest Physicians. "Weight loss in obese adults can reduce severity of asthma." ScienceDaily. ScienceDaily, 8 June 2015. <www.sciencedaily.com/releases/2015/06/150608144217.htm>.
American College of Chest Physicians. (2015, June 8). Weight loss in obese adults can reduce severity of asthma. ScienceDaily. Retrieved May 23, 2017 from www.sciencedaily.com/releases/2015/06/150608144217.htm
American College of Chest Physicians. "Weight loss in obese adults can reduce severity of asthma." ScienceDaily. www.sciencedaily.com/releases/2015/06/150608144217.htm (accessed May 23, 2017).

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