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Exercise shields children from stress, research indicates

Date:
March 7, 2013
Source:
Endocrine Society
Summary:
Exercise may play a key role in helping children cope with stressful situations, according to a recent study.

Exercise may play a key role in helping children cope with stressful situations, according to a recent study accepted for publication in The Endocrine Society's Journal of Clinical Endocrinology & Metabolism (JCEM).

When they are exposed to everyday stressors, the study found sedentary children had surges of cortisol -- a hormone linked to stress. The most active children had little or no increase in their cortisol levels in similar situations.

"The findings suggest physical activity plays a role in mental health by buffering children from the effects of daily stressors, such as public speaking," said the study's lead author, Silja Martikainen, MA, of the University of Helsinki, Finland.

The cross-sectional study monitored physical activity and cortisol levels in a birth cohort of eight-year-old children. The 252 participants wore accelerometer devices on their wrists to measure physical activity. Saliva samples were taken to measure cortisol levels. To measure reactions to stress, children were assigned arithmetic and story-telling tasks. The study is the first to find a link between physical activity and stress hormone responses in children.

The children were divided into three groups -- most active, intermediate and least active. The most active children's cortisol levels were the least reactive to stressful situations. The most active children exercised more vigorously and for longer periods of time than their counterparts.

"Clearly, there is a link between mental and physical well-being, but the nature of the connection is not well understood," Martikainen said. "These results suggest exercise promotes mental health by regulating the stress hormone response to stressors."

Other researchers working on the study include: A. Pesonen, J. Lahti, K. Heinonen, K. Feldt, R. Pyhälä and K. Räikkönen of the University of Helsinki; T. Tammelin of LIKES Research Center for Sport and Health Sciences; E. Kajantie and J. Eriksson of the National Institute for Health and Welfare; and T. Strandberg of Helsinki University Central Hospital.

The article, "Higher Levels of Physical Activity are Associated with Lower Hypothalamic-Pituitary-Adrenocortical Axis Reactivity to Psychosocial Stress in Children," appears in the April 2013 issue of JCEM.


Story Source:

The above story is based on materials provided by Endocrine Society. Note: Materials may be edited for content and length.


Journal Reference:

  1. Silja Martikainen, Anu-Katriina Pesonen, Jari Lahti, Kati Heinonen, Kimmo Feldt, Riikka Pyhälä, Tuija Tammelin, Eero Kajantie, Johan G. Eriksson, Timo E. Strandberg, and Katri Räikkönen. Higher Levels of Physical Activity Are Associated With Lower Hypothalamic-Pituitary-Adrenocortical Axis Reactivity to Psychosocial Stress in Children. Journal of Clinical Endocrinology & Metabolism, 2013; DOI: 10.1210/jc.2012-3745

Cite This Page:

Endocrine Society. "Exercise shields children from stress, research indicates." ScienceDaily. ScienceDaily, 7 March 2013. <www.sciencedaily.com/releases/2013/03/130307091552.htm>.
Endocrine Society. (2013, March 7). Exercise shields children from stress, research indicates. ScienceDaily. Retrieved October 20, 2014 from www.sciencedaily.com/releases/2013/03/130307091552.htm
Endocrine Society. "Exercise shields children from stress, research indicates." ScienceDaily. www.sciencedaily.com/releases/2013/03/130307091552.htm (accessed October 20, 2014).

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