Effects of volitional lifestyle on rest–activity cycle in the aged

Shirota, Ai; Tamaki, Munehisa; Tanaka, Hideki; Hayashi, Mitsuo; Shirakawa, Syuichiro; Hori, Tadao

doi:10.1046/j.1440-1819.1999.00490.x

Cited by 3 publications

(1 citation statement)

References 3 publications

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“…It has been used among the Japanese to assess quality of life in psychiatric hospitals and long term care facilities (Nagamoto et al, 1997a,b) and among those living alone (Yamashita et al, 1999). It has been shown to vary with sleep characteristics (Shirota et al, 1999), to correlate with family care (Takemasa, 1998), while associations with functional disability were conflicting (Nagamoto et al, 1997b;Takemasa, 1998;Yasunage …”

Section: Discussionmentioning

confidence: 99%

Depression is the predominant factor contributing to morale as measured by the Philadelphia Geriatric Morale Scale in elderly Chinese aged 70 years and over

Woo

Wong

2005

Int. J. Geriat. Psychiatry

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Section: Discussionmentioning

confidence: 99%

Depression is the predominant factor contributing to morale as measured by the Philadelphia Geriatric Morale Scale in elderly Chinese aged 70 years and over

Woo

Wong

2005

Int. J. Geriat. Psychiatry

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The role of actigraphy in sleep medicine

Sadeh

Acebo

2002

Sleep Medicine Reviews

638

432

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The Role of Actigraphy in the Study of Sleep and Circadian Rhythms

Ancoli‐Israel

Cole²,

Alessi

et al. 2003

Sleep

2,309

1,826

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In summary, although actigraphy is not as accurate as PSG for determining some sleep measurements, studies are in general agreement that actigraphy, with its ability to record continuously for long time periods, is more reliable than sleep logs which rely on the patients' recall of how many times they woke up or how long they slept during the night and is more reliable than observations which only capture short time periods. Actigraphy can provide information obtainable in no other practical way. It can also have a role in the medical care of patients with sleep disorders. However, it should not be held to the same expectations as polysomnography. Actigraphy is one-dimensional, whereas polysomnography comprises at least 3 distinct types of data (EEG, EOG, EMG), which jointly determine whether a person is asleep or awake. It is therefore doubtful whether actigraphic data will ever be informationally equivalent to the PSG, although progress on hardware and data processing software is continuously being made. Although the 1995 practice parameters paper determined that actigraphy was not appropriate for the diagnosis of sleep disorders, more recent studies suggest that for some disorders, actigraphy may be more practical than PSG. While actigraphy is still not appropriate for the diagnosis of sleep disordered breathing or of periodic limb movements in sleep, it is highly appropriate for examining the sleep variability (i.e., night-to-night variability) in patients with insomnia. Actigraphy is also appropriate for the assessment of and stability of treatment effects of anything from hypnotic drugs to light treatment to CPAP, particularly if assessments are done before and after the start of treatment. A recent independent review of the actigraphy literature by Sadeh and Acebo reached many of these same conclusions. Some of the research studies failed to find relationships between sleep measures and health-related symptoms. The interpretation of these data is also not clear-cut. Is it that the actigraph is not reliable enough to the access the relationship between sleep changes and quality of life measures, or, is it that, in fact, there is no relationship between sleep in that population and quality of life measures? Other studies of sleep disordered breathing, where actigraphy was not used and was not an outcome measure also failed to find any relationship with quality of life. Is it then the actigraph that is not reliable or that the associations just do not exist? The one area where actigraphy can be used for clinical diagnosis is in the evaluation of circadian rhythm disorders. Actigraphy has been shown to be very good for identifying rhythms. Results of actigraphic recordings correlate well with measurements of melatonin and of core body temperature rhythms. Activity records also show sleep disturbance when sleep is attempted at an unfavorable phase of the circadian cycle. Actigraphy therefore would be particularly good for aiding in the diagnosis of delayed or advanced sleep phase syndrome, non-24-hour-sleep syn...

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Effects of volitional lifestyle on rest–activity cycle in the aged

Cited by 3 publications

References 3 publications

Depression is the predominant factor contributing to morale as measured by the Philadelphia Geriatric Morale Scale in elderly Chinese aged 70 years and over

Depression is the predominant factor contributing to morale as measured by the Philadelphia Geriatric Morale Scale in elderly Chinese aged 70 years and over

The role of actigraphy in sleep medicine

The Role of Actigraphy in the Study of Sleep and Circadian Rhythms

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