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Walking may help protect kidney patients against heart disease, infections

Date:
April 3, 2014
Source:
American Society of Nephrology (ASN)
Summary:
In kidney disease patients, 30 minutes of walking improved the responsiveness of certain immune cells to a bacterial challenge and induced a systemic anti-inflammatory environment in the body. Six months of regular walking reduced immune cell activation and markers of systemic inflammation.

Heart disease and infection are major complications and the leading causes of death in patients with chronic kidney disease. It is now well established that immune system dysfunction is involved in both of these pathological processes. Specifically, impaired immune function predisposes to infection, while persistent immune activation leads to a state of chronic inflammation that can damage the insides of blood vessels and increase heart disease risk. Physical exercise may confer benefits by exerting anti-inflammatory effects and enhancing immunity, but such effects have been largely unexplored in kidney disease.

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João Viana, PhD, Nicolette Bishop, PhD (Loughborough University, in the UK), and Alice Smith, PhD (University of Leicester) and their colleagues designed a study to explore the impact of exercise on a range of immune and inflammatory parameters in patients with chronic kidney disease.

In an acute exercise study conducted in 15 patients, 30 minutes of walking improved the responsiveness of immune cells called neutrophils to a bacterial challenge in the post-exercise period. It also induced a systemic anti-inflammatory environment in the body.

In a regular exercise study, six months of regular walking (30 minutes/day, five times/week) reduced immune cell activation and markers of systemic inflammation in 20 patients compared with another 20 patients who did not increase their usual activity levels over the same period of time.

“Thus, exercise exerts anti-inflammatory effects in patients with kidney disease and may in this way reduce their high risk for heart disease,” said Dr. Viana. “Our study also found no evidence that this level of exercise might be harmful to the immune system in people with kidney disease.”


Story Source:

The above story is based on materials provided by American Society of Nephrology (ASN). Note: Materials may be edited for content and length.


Journal Reference:

  1. J. L. Viana, G. C. Kosmadakis, E. L. Watson, A. Bevington, J. Feehally, N. C. Bishop, A. C. Smith. Evidence for Anti-Inflammatory Effects of Exercise in CKD. Journal of the American Society of Nephrology, 2014; DOI: 10.1681/ASN.2013070702

Cite This Page:

American Society of Nephrology (ASN). "Walking may help protect kidney patients against heart disease, infections." ScienceDaily. ScienceDaily, 3 April 2014. <www.sciencedaily.com/releases/2014/04/140403212356.htm>.
American Society of Nephrology (ASN). (2014, April 3). Walking may help protect kidney patients against heart disease, infections. ScienceDaily. Retrieved December 17, 2014 from www.sciencedaily.com/releases/2014/04/140403212356.htm
American Society of Nephrology (ASN). "Walking may help protect kidney patients against heart disease, infections." ScienceDaily. www.sciencedaily.com/releases/2014/04/140403212356.htm (accessed December 17, 2014).

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