Affects and autonomic cardiac reactivity during experimentally induced stress as related to precursors of insulin resistance syndrome |
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Authors: | Puttonen Sampsa Keltikangas-Järvinen Liisa Ravaja Niklas Viikari Jorma |
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Affiliation: | (1) Department of Psychology, University of Helsinki, P.O. Box 9, FIN-00014, Finland;(2) Department of Medicine, University of Turku, Turku, Finland |
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Abstract: | This study examined the association of insulin resistance syndrome (IRS) precursors with state affects and autonomic reactivity in randomly selected healthy young adults. It was asked whether IRS precursors are able to predict a person’s mental and physiological coping with acute stress over an 11-year follow-up period. IRS parameters were serum insulin, high-density lipoprotein cholesterol, triglycerides, systolic blood pressure, body-mass index, and subscapular skinfold thickness. In the psychophysiological experiment, state affects and cardiac responses (heart rate, respiratory sinus arrhythmia, and pre-ejection period) were measured during different challenges. The main result was that IRS precursors predicted high levels of negative emotions during the challenges; IRS accounted for 19% of the variance in tiredness. IRS was unrelated to cardiac reactivity. Mechanisms underlying the associations found are discussed. |
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Keywords: | insulin resistance syndrome stress emotion heart rate pre-ejection period respiratory sinus arrhythmia |
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