Seasonal Variation in Human Salivary Cortisol Concentration
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Seasonal Variation in Human Salivary Cortisol Concentration. / Persson, Roger; Garde, Anne Helene; Hansen, Åse Marie; Osterberg, Kai; Larsson, Britt; Orbaek, Palle; Karlson, Björn.
In: Chronobiology International, Vol. 25, No. 6, 2008, p. 923-937.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Seasonal Variation in Human Salivary Cortisol Concentration
AU - Persson, Roger
AU - Garde, Anne Helene
AU - Hansen, Åse Marie
AU - Osterberg, Kai
AU - Larsson, Britt
AU - Orbaek, Palle
AU - Karlson, Björn
PY - 2008
Y1 - 2008
N2 - Measurement of cortisol concentration can contribute important information about an individual's ability to adjust to various environmental demands of both physical and psychosocial origin. However, one uncertainty that affects the possibilities of correctly interpreting and designing field studies is the lack of observations of the impact of seasonal changes on cortisol excretion. For this reason, the month-to-month changes in diurnal cortisol concentration, the awakening cortisol response (ACR), maximum morning concentration, and fall during the day were studied in a group of 24 healthy men and women 32 to 61 yrs of age engaged in active work. On one workday for 12 consecutive months, participants collected saliva at four time points for determination of cortisol: at awakening, +30 min, +8 h, and at 21:00 h. Data were analyzed by a repeated measures design with month (12 levels) and time-of-day (4 levels) as categorical predictors. Cortisol concentrations were analyzed on a log scale. The diurnal pattern of cortisol was similar across months (interaction between month and time of day: p>0.4). The main effects of month and time-of-day were statistically significant (p
AB - Measurement of cortisol concentration can contribute important information about an individual's ability to adjust to various environmental demands of both physical and psychosocial origin. However, one uncertainty that affects the possibilities of correctly interpreting and designing field studies is the lack of observations of the impact of seasonal changes on cortisol excretion. For this reason, the month-to-month changes in diurnal cortisol concentration, the awakening cortisol response (ACR), maximum morning concentration, and fall during the day were studied in a group of 24 healthy men and women 32 to 61 yrs of age engaged in active work. On one workday for 12 consecutive months, participants collected saliva at four time points for determination of cortisol: at awakening, +30 min, +8 h, and at 21:00 h. Data were analyzed by a repeated measures design with month (12 levels) and time-of-day (4 levels) as categorical predictors. Cortisol concentrations were analyzed on a log scale. The diurnal pattern of cortisol was similar across months (interaction between month and time of day: p>0.4). The main effects of month and time-of-day were statistically significant (p
KW - Adult
KW - Circadian Rhythm
KW - Female
KW - Humans
KW - Hydrocortisone
KW - Hypothalamus
KW - Male
KW - Middle Aged
KW - Models, Biological
KW - Pituitary Gland
KW - Pituitary-Adrenal System
KW - Saliva
KW - Seasons
KW - Work
U2 - 10.1080/07420520802553648
DO - 10.1080/07420520802553648
M3 - Journal article
C2 - 19005896
VL - 25
SP - 923
EP - 937
JO - Chronobiology International
JF - Chronobiology International
SN - 0742-0528
IS - 6
ER -
ID: 10760334