Physical activity, life events stress, cortisol, and DHEA in older adults: Preliminary findings that physical activity may buffer against the negative effects of stress

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@article{e72a45beef1b44ff9a4fc977b5c3ef28,
title = "Physical activity, life events stress, cortisol, and DHEA in older adults: Preliminary findings that physical activity may buffer against the negative effects of stress",
abstract = "The present study examined the relationship between habitual physical activity, life events stress, the diurnal rhythms of cortisol and DHEA, and the cortisol:dehydroepiandrosterone (DHEA) ratio in older adults. Thirty-six participants aged ≥ 65 reported their habitual physical activity, and indicated if a particular event happened to them in the past year (stress incidence) and how stressful they perceived the event to be (stress severity). Older adults with higher stress severity demonstrated a significantly higher cortisol:DHEA ratio. Individuals with higher stress incidence scores and who did not participate in aerobic exercise had a significantly higher cortisol:DHEA ratio and flatter DHEA diurnal rhythm compared with those who regularly participated in aerobic exercise. In conclusion, life events stress may have a negative impact on the cortisol:DHEA ratio in older adults. Under conditions of high stress exposure, exercise may protect older adults from an increased cortisol:DHEA ratio and flatter DHEA diurnal rhythm.",
keywords = "Cortisol:DHEA Ratio, Physical Activity, Life Events Stress, Older Adults",
author = "Heaney, {Jennifer L J} and Douglas Carroll and Phillips, {Anna C}",
year = "2014",
month = oct,
doi = "10.1123/japa.2012-0082",
language = "English",
volume = "22",
pages = "465--473",
journal = "Journal of aging and physical activity",
issn = "1063-8652",
publisher = "Human Kinetics Publishers Inc.",
number = "4",

}

RIS

TY - JOUR

T1 - Physical activity, life events stress, cortisol, and DHEA in older adults

T2 - Preliminary findings that physical activity may buffer against the negative effects of stress

AU - Heaney, Jennifer L J

AU - Carroll, Douglas

AU - Phillips, Anna C

PY - 2014/10

Y1 - 2014/10

N2 - The present study examined the relationship between habitual physical activity, life events stress, the diurnal rhythms of cortisol and DHEA, and the cortisol:dehydroepiandrosterone (DHEA) ratio in older adults. Thirty-six participants aged ≥ 65 reported their habitual physical activity, and indicated if a particular event happened to them in the past year (stress incidence) and how stressful they perceived the event to be (stress severity). Older adults with higher stress severity demonstrated a significantly higher cortisol:DHEA ratio. Individuals with higher stress incidence scores and who did not participate in aerobic exercise had a significantly higher cortisol:DHEA ratio and flatter DHEA diurnal rhythm compared with those who regularly participated in aerobic exercise. In conclusion, life events stress may have a negative impact on the cortisol:DHEA ratio in older adults. Under conditions of high stress exposure, exercise may protect older adults from an increased cortisol:DHEA ratio and flatter DHEA diurnal rhythm.

AB - The present study examined the relationship between habitual physical activity, life events stress, the diurnal rhythms of cortisol and DHEA, and the cortisol:dehydroepiandrosterone (DHEA) ratio in older adults. Thirty-six participants aged ≥ 65 reported their habitual physical activity, and indicated if a particular event happened to them in the past year (stress incidence) and how stressful they perceived the event to be (stress severity). Older adults with higher stress severity demonstrated a significantly higher cortisol:DHEA ratio. Individuals with higher stress incidence scores and who did not participate in aerobic exercise had a significantly higher cortisol:DHEA ratio and flatter DHEA diurnal rhythm compared with those who regularly participated in aerobic exercise. In conclusion, life events stress may have a negative impact on the cortisol:DHEA ratio in older adults. Under conditions of high stress exposure, exercise may protect older adults from an increased cortisol:DHEA ratio and flatter DHEA diurnal rhythm.

KW - Cortisol:DHEA Ratio

KW - Physical Activity

KW - Life Events Stress

KW - Older Adults

U2 - 10.1123/japa.2012-0082

DO - 10.1123/japa.2012-0082

M3 - Article

C2 - 24084142

VL - 22

SP - 465

EP - 473

JO - Journal of aging and physical activity

JF - Journal of aging and physical activity

SN - 1063-8652

IS - 4

ER -