PMID: 8957588Nov 1, 1996Paper

Amplitude reduction of the circadian temperature and sleep rhythms in the elderly

Chronobiology International
J CarrierD J Kupfer

Abstract

This study examined the relationship between circadian temperature rhythm amplitude reduction and sleep consolidation parameters in a group of healthy elders experiencing a 6-h phase advance in routine. Twenty-five healthy old people (15 women, 10 men, 77-91 years old) lived in a time-isolation apartment. Throughout the study, subjects were instructed when to go to bed, get up, and take meals. The experiment started with 5 baseline days during which subjects were kept to a daily routine corresponding to their habitual sleep-wake cycle. The wake time of the 6th night was phase-advanced by 6 h and the routine for the remainder of the experiment was held constant at the new earlier phase position. Rectal temperature was recorded continuously and all sleep episodes recorded polygraphically. Time series of temperature data for each subject were analyzed by complex demodulation (CD). Five of the subjects were excluded from analysis because the percentage of variance accounted for by the remodulate was less than 55% for the postshift days and one subject was excluded because he showed an average sleep efficiency of less than 55% during baseline. In the remaining 19 subjects, the phase shift produced a large decrease of the mean amplit...Continue Reading

References

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Citations

Jan 25, 2003·Experimental Gerontology·Debra J Skene, Dick F Swaab
Feb 26, 2004·Aging & Mental Health·S C Sullivan, K C Richards
Apr 13, 2012·Science Translational Medicine·Orfeu M BuxtonSteven A Shea
Apr 10, 2013·The American Journal of Geriatric Psychiatry : Official Journal of the American Association for Geriatric Psychiatry·Jeanne E MaglioneUNKNOWN Study of Osteoporotic Fractures Research Group
Aug 2, 2003·Journal of the American Geriatrics Society·In-Young YoonRichard L Hauger
May 7, 2008·Research in Nursing & Health·Wen-Chun LiaoCarol A Landis
Oct 27, 2004·Journal of Psychiatric Research·Andrea DzajaTarja Porkka-Heiskanen
Apr 22, 2015·The American Journal of Geriatric Psychiatry : Official Journal of the American Association for Geriatric Psychiatry·Jeanne E MaglioneUNKNOWN Study of Osteoporotic Fractures in Women (SOF) and Osteoporotic Fractures in Men Study (MrOS) Research Groups
Nov 17, 2015·Sleep Medicine Clinics·Jeanne F DuffyEvan D Chinoy
Jan 18, 2003·Sleep Medicine Reviews·Torbjorn AkerstedtHartmut Schulz
Dec 3, 2014·PloS One·Chao-Yu GuoHuey-Jen Su
Oct 12, 2002·Journal of Biological Rhythms·Mitsuyuki NakaoMitsuaki Yamamoto
Jun 6, 1998·Journal of Biological Rhythms·T H MonkL M Willrich
Nov 18, 2009·Chronobiology International·Corinne JudUrs Albrecht
Jun 7, 2000·Chronobiology International·D Weinert
Oct 22, 2002·American Journal of Physiology. Regulatory, Integrative and Comparative Physiology·Kenneth P WrightCharles A Czeisler
Aug 28, 2020·Frontiers in Medicine·Xiaofan JiangXin Guo
Jan 25, 2000·American Journal of Physiology. Regulatory, Integrative and Comparative Physiology·P J ShiromaniM Thakkar
Jun 2, 2012·Journal of Biological Rhythms·Véronique DaneaultJulie Carrier
Jun 10, 2000·Journal of Sleep Research·T H MonkD J Kupfer

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