Phase-advance of circadian rhythms by environmental cue manipulation

C. Todero; L. Farr; A. Keene; G. Erickson; R. Osborne

Phase-advance of circadian rhythms by environmental cue manipulation

C. Todero, L. Farr, A. Keene, G. Erickson, R. Osborne

Research output: Contribution to journal › Article › peer-review

Abstract

A protocol of dietary and sleep/wake modifications was used in an attempt to phase-advance the circadian rhythms of several physiological variables. The protocol, originally developed by Ehret, Groh, and Meinert (1981) to preadjust travelers, was modified based on previous studies in our own lab and used in 25 healthy volunteers who were divided into chronotypes using the Morningness-Eveningness Questionnaire (MEQ) (Horne and Ostberg, 1976). Significant phase-advancement was seen in the temperature, systolic and diastolic blood pressure rhythms of evening types, and in the diastolic blood pressure rhythms of neutral types (p <.05). Effects seen in the other variables were neither as dramatic nor sustained.

Original language	English (US)
Pages (from-to)	285-288
Number of pages	4
Journal	Annual Review of Chronopharmacology
Volume	7
State	Published - Jan 1 1990
Externally published	Yes

All Science Journal Classification (ASJC) codes

Pharmacology

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AU - Todero, C.

AU - Farr, L.

AU - Keene, A.

AU - Erickson, G.

AU - Osborne, R.

PY - 1990/1/1

Y1 - 1990/1/1

N2 - A protocol of dietary and sleep/wake modifications was used in an attempt to phase-advance the circadian rhythms of several physiological variables. The protocol, originally developed by Ehret, Groh, and Meinert (1981) to preadjust travelers, was modified based on previous studies in our own lab and used in 25 healthy volunteers who were divided into chronotypes using the Morningness-Eveningness Questionnaire (MEQ) (Horne and Ostberg, 1976). Significant phase-advancement was seen in the temperature, systolic and diastolic blood pressure rhythms of evening types, and in the diastolic blood pressure rhythms of neutral types (p <.05). Effects seen in the other variables were neither as dramatic nor sustained.

AB - A protocol of dietary and sleep/wake modifications was used in an attempt to phase-advance the circadian rhythms of several physiological variables. The protocol, originally developed by Ehret, Groh, and Meinert (1981) to preadjust travelers, was modified based on previous studies in our own lab and used in 25 healthy volunteers who were divided into chronotypes using the Morningness-Eveningness Questionnaire (MEQ) (Horne and Ostberg, 1976). Significant phase-advancement was seen in the temperature, systolic and diastolic blood pressure rhythms of evening types, and in the diastolic blood pressure rhythms of neutral types (p <.05). Effects seen in the other variables were neither as dramatic nor sustained.

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