PMID: 8446834Feb 1, 1993Paper

Ambulatory activity monitoring during sleep: an evaluation of internight and intrasubject variability in healthy persons aged 50-98 years

Sleep
J J van HiltenH A Kamphuisen

Abstract

The aim of this study was to assess the internight and intrasubject variability of nocturnal activity and immobility measures of 99 healthy subjects aged 50-98 years. Motor activity was recorded at home during 6 successive nights with a wrist-worn activity monitor. The occurrence of suprathreshold motor activity was recorded over 15-second epochs. For each subject, six mean measures reflecting activity or immobility during sleep and their coefficient of variation were calculated. Our results revealed no first-night effect or day-of-week effect of the activity and immobility measures over the 6 nights across all subjects. On the other hand, for all nocturnal activity and immobility measures, a considerable intrasubject variability across the 6 nights was found. Females had a greater intrasubject variability of the mean duration of immobility periods and the movement index than males. The intrasubject variability of all nocturnal activity and immobility measures across the successive age groups remains stable. These findings emphasize that although a first-night effect may be lacking, the intrasubject variability of activity and immobility measures across several nights may still be considerable.

Citations

Sep 1, 1996·The American Journal of Forensic Medicine and Pathology·J B WeitzmanC R Perez
Aug 25, 2007·Journal of Sleep Research·Eus J W VAN Someren
Jun 25, 2016·Journal of Alzheimer's Disease : JAD·Marina G CavuotoGlynda J Kinsella
Feb 7, 1998·Developmental Psychobiology·M J Hayes, D Mitchell
Mar 18, 2005·Menopause : the Journal of the North American Menopause Society·Quentin R Regestein
Jan 8, 2013·Journal of Burn Care & Research : Official Publication of the American Burn Association·Michele M GottschlichRichard J Kagan
May 16, 2014·The Journals of Gerontology. Series B, Psychological Sciences and Social Sciences·Haley R DillonAndrew J Bush
Aug 25, 1999·Psychiatry and Clinical Neurosciences·S SakakibaraT Koyama
Jun 7, 2006·Chronobiology International·Hanna LehnkeringRenate Siegmund
Nov 16, 2006·Blood Pressure Monitoring·Anne-Isabelle TropeanoIsabelle Macquin-Mavier
Feb 13, 2016·Journal of Sleep Research·Marina G CavuotoGlynda J Kinsella
Jun 7, 2013·Medicine and Science in Sports and Exercise·Maya J LambiaseKaren A Matthews
Oct 19, 2011·Journal of Nursing Measurement·Julie L OtteJanet S Carpenter
Mar 10, 2011·The Journal of Head Trauma Rehabilitation·Felise S ZollmanRita K Bode
Sep 10, 2015·Pain Medicine : the Official Journal of the American Academy of Pain Medicine·Catherine BlakeBrona M Fullen
Dec 7, 2018·Journal of Aging and Physical Activity·Charity B BrenemanXuewen Wang
Jun 17, 1998·Psychiatry and Clinical Neurosciences·S SakakibaraT Koyama
Jul 11, 2018·American Journal of Physical Anthropology·Gandhi YetishMichael Gurven
Apr 13, 2021·Frontiers in Psychology·Annika Hof Zum BergeSarah Jakowski

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.