[SportMed] PHYSICAL EXERCISE AND FITNESS : MEDICAL CONDITIONS OBESITY : MEDICAL: HEART AND CARDIOVASCULAR: Can Exercise Weaken the Link Between Obesity and Heart Damage?

 

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PHYSICAL EXERCISE AND FITNESS :

MEDICAL CONDITIONS OBESITY :

MEDICAL: HEART AND CARDIOVASCULAR:

Can Exercise Weaken the Link Between Obesity and Heart Damage?

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Can Exercise Weaken the Link Between Obesity and Heart Damage?

By Lisa Rapaport

HEALTH NEWS |

Wednesday April 26, 2017 | 3:54pm EDT

Reuters

http://www.reuters.com/article/ us-health-obesity-heart-failure-idUSKBN17S2QF

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A shorter URL for the above link:

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http://tinyurl.com/k9atvn5

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(Reuters Health) – Even though heavy adults can be more prone to cardiac problems than their slimmer peers, exercise may lower the odds of heart damage for obese people, a recent study suggests.

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Researchers examined data on 9,427 middle-aged people without cardiovascular disease to see how their weight and exercise habits might influence levels of a protein thats a marker of heart damage.

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Overall, 7.2 percent of the participants had elevated levels of a protein known as high-sensitivity cardiac troponin T (hs-cTnT). Rising levels of this protein can be an early warning of future heart failure in people who dont have symptoms.

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Compared to non-obese people who got at least 75 minutes of vigorous exercise or 150 minutes of moderate intensity activity each week, sedentary obese people were about 2.5 times more likely to have high levels of this protein, the study found.

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But obese people who met the same recommended exercise targets as their non-obese counterparts were only 68 percent more likely to have elevated cardiac troponin T levels.

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This suggests that physical activity prevents at least some of the heart damage associated with obesity, said lead study author Dr. Roberta Florido, a cardiovascular health researcher at Johns Hopkins University in Baltimore.

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Although the mechanisms underlying this protection are incompletely understood, it is possible that at least part of it involves improvements in blood pressure, cholesterol and other metabolic abnormalities that occur with obesity, Florido said by email.

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At the start of the study, participants were typically around 60 years old and they tended to be overweight, if not obese.

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Researchers counted people as meeting recommended exercise levels based on minimum weekly activity targets set by the American Heart Association: either 150 minutes of moderate or more vigorous activity or at least 75 minutes of intense activity.

SOURCES:

JACC: Heart Failure

Volume 5, Issue 5, May 2017

DOI: 10.1016/j.jchf.2017.02.002

PDF Article

Physical Activity, Obesity, and Subclinical Myocardial Damage

Roberta Florido, Chiadi E. Ndumele, Lucia Kwak, Yuanjie Pang, Kunihiro Matsushita, Jennifer A. Schrack, Mariana Lazo, Vijay Nambi, Roger S. Blumenthal, Aaron R. Folsom, Josef Coresh, Christie M. Ballantyne, Elizabeth Selvin

bit.ly/2oMNXr9

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Objectives This study sought to evaluate the association of physical activity with chronic myocardial damage, assessed by elevated high-sensitivity cardiac troponin T (hs-cTnT), in individuals with and without obesity.

Background Physical activity is associated with reduced risk of heart failure (HF), particularly among obese people. The role of chronic myocardial damage in this association is uncertain.

Conclusions Physical activity is inversely associated with chronic subclinical myocardial damage. Physical activity might lessen the association between obesity and subclinical myocardial damage, which could represent a mechanism by which physical activity reduces HF risk.

Key Words

epidemiologyheart failureobesityphysical activitytroponin T

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JACC: Heart Failure

Volume 5, Issue 5, May 2017

DOI: 10.1016/j.jchf.2017.03.006

PDF Article

Physical Activity Prevents Obesity and Heart Failure
Now What Are We Going to Do About It?

Tariq Ahmad, Jeffrey M. Testani

bit.ly/2p4PoU8

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The complete articles may be read at the URLs provided for each.

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[SportMed] PHYSICAL EXERCISE AND FITNESS : MEDICAL CONDITIONS OBESITY : MEDICAL: HEART AND CARDIOVASCULAR: Can Exercise Weaken the Link Between Obesity and Heart Damage?

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