Effects of Interface Pressure Distribution on Human Sleep Quality

Chen, Zongyong; Li, Yuqian; Liu, Rong; Guo, Dong; Chen, Quanhui; Hu, Zhian; Guo, Jiajun

doi:10.1371/journal.pone.0099969

Cited by 15 publications

(24 citation statements)

References 36 publications

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“…Better pressure distribution may have reduced discomfort at sites of compression on the body's surface, reducing the fragmentation of SWS. Chen et al [11] reported that differences in pressure distribution of mattresses affected sleep. In the study, increase in SWS and the decrease in micro-arousals were observed in participants sleeping on pressure intermediately distributed mattress, compared to the ones that were overly-concentrated or overly-even in distribution of pressure [11].…”

Section: Discussionmentioning

confidence: 99%

“…Chen et al [11] reported that differences in pressure distribution of mattresses affected sleep. In the study, increase in SWS and the decrease in micro-arousals were observed in participants sleeping on pressure intermediately distributed mattress, compared to the ones that were overly-concentrated or overly-even in distribution of pressure [11]. In the present study, body pressures were actually lower with the functional mattress for all participants in every posture compared to the control mattress.…”

Section: Discussionmentioning

confidence: 99%

“…Momoko Kayaba, PhD 1,2 , Hitomi Ogata, PhD 3,4 , Insung Park, PhD 1,3 , Asuka Ishihara, BA 1,5 , Fusae Kawana, BSc, RPSGT 1,6 , Toshio Kokubo, PhD 1 , Shoji Fukusumi, PhD 1 , Michiko Hayashi, PhD 1 , Kumpei Tokuyama, PhD 1,3 , Masashi Yanagisawa, MD, PhD 1 , Makoto Satoh, MD, PhD 1 comfort" have been used to describe the different types of mattresses used [8][9][10], while some studies provided no detailed information about their mattresses [11,12], making experiments difficult to repeat. Other studies evaluated the effects of mattresses on pressure distribution and spinal distortion but did not measure sleep quality [13][14][15][16].…”

Section: Improvement Of Slow Wave Sleep Continuity By Mattress With Bmentioning

confidence: 99%

Section: Improvement Of Slow Wave Sleep Continuity By Mattress With Bmentioning

confidence: 99%

“…A limited number of studies have used polysomnography (PSG) to assess the effects of mattress condition on sleep architecture [11,12,18]. Focusing on the pressure distribution, Chen et al [11] reported an association between the distribution of pressure over a mattress and the amount of slow wave sleep (SWS) and micro-arousals experienced. However, even though the general characteristics of the mattresses in this study were reported, there were no descriptions on the composition of each layer of the mattress, their thickness, or the specific differences between the mattresses.…”

Section: Improvement Of Slow Wave Sleep Continuity By Mattress With Bmentioning

confidence: 99%

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Improvement of Slow Wave Sleep Continuity by Mattress with Better Body Pressure Dispersal

et al. 2019

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Background and ObjectiveaaThis study evaluated the effects of a mattress with better body pressure dispersal in comparison to a control mattress on sleep quality. MethodsaaIn this randomized crossover study, 10 healthy young men slept in an experimental sleep room on either a functional mattress made from polyurethane, with a special four-layer three-dimensional structure, or a control mattress made from solid polyester wadding, which is a mattress commercially available in Japan. Polysomnography recordings were used to characterize sleep architecture, and the length of slow wave sleep (SWS) episodes and delta power density were calculated from the electroencephalography data and subjective sleep quality was evaluated by questionnaire they answered after waking. ResultsaaThere were no significant differences in sleep latency, the total duration of each sleep stages, total sleep time, or sleep efficiency. Although the difference was subtle, delta power density significantly increased with the functional mattress. There was no difference in the total duration of SWS, but there were significantly fewer SWS episodes with the functional mattress (10.3 ± 1.8) than with the control mattress (16.9 ± 1.2) and longer SWS episode duration (10.9 ± 1.7 min) with the functional mattress than with the control mattress (5.6 ± 0.5 min). ConclusionsaaIt was suggested that the functional mattress lengthened SWS episode duration, and its fragmentation was effective in evaluating the sleep quality of healthy young individuals. Sleep Med Res 2019;10(2):75-82

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Improvement Of Slow Wave Sleep Continuity By Mattress With Bmentioning

confidence: 99%

Section: Improvement Of Slow Wave Sleep Continuity By Mattress With Bmentioning

confidence: 99%

Section: Improvement Of Slow Wave Sleep Continuity By Mattress With Bmentioning

confidence: 99%

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Improvement of Slow Wave Sleep Continuity by Mattress with Better Body Pressure Dispersal

et al. 2019

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The Effect of Superficial Heat–Cold Application on the Sleep Quality of Patients With Restless Leg Syndrome: A Systematic Review and Meta‐Analysis

Mohammadi,

Ahmadi,

Vaisi Raygani

2024

Nursing Open

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AimThe present study was conducted to determine the effect of the superficial heat–cold application on the sleep quality of patients with restless leg syndrome.DesignThis study was a systematic review and meta‐analysis.MethodsIn the present study, the electronic databases Scopus, ProQuest, Web of Science, PubMed, SID and Google Scholar were searched from their inception to September 2023. The quality of included studies was evaluated through the Cochrane Collaboration's Risk of Bias Tool, and finally, a meta‐analysis was conducted by calculating standardised mean differences (SMDs).ResultsThe meta‐analysis results revealed that superficial heat–cold application improved sleep quality in patients with RLS (SMD = 0.685, 95% CI: 0.421–0.950). The meta‐regression results showed that as the temperature increased, the intervention was more effective in improving sleep quality (β = 0.0182, 95% CI: 0.0096–0.0268, p < 0.05). Moreover, the effectiveness of the intervention in improving the sleep quality of patients with RLS reduced significantly as the duration of intervention in each session (β = −0.031, 95% CI: −0.059 to −0.001, p < 0.05) as well as participants' age increased (β = −0.013, 95% CI: −0.024 to −0.001, p = 0.0259).Patient or Public ContributionThis research showed that superficial heat–cold application had the capability to improve the sleep quality of patients with restless leg syndrome. In addition, in this study, settings were suggested according to which the maximum effectiveness of the intervention could be achieved.

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Development of latex foam pillows from deproteinized natural rubber latex

et al. 2021

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Currently there is significant demand for pillows with improved pressure-relief features made from natural materials, alternatives to petrochemical-based foams. In order to meet the requirements, this study's approach is to develop latex foam pillows from deproteinized natural rubber (DPNR) latex with a unique dual-density cervical-shaped structure. In this work, DPNR latex foam pillows were produced at three different density levels which are high-density, medium-density and low-density. Extractable protein content of latex foam made from DPNR was confirmed lower than latex foam made from low ammonia NR latex (LATZ) and of commercial NR latex foams, making DPNR pillows more hypoallergenic than others. The physical properties of the produced DPNR latex foams were examined in accordance with Malaysian Standard MS679, and were found to comply with all requirements stipulated in standard specifications. A novel dual-density cervical-shaped DPNR latex foam pillow prototype was produced where the pillow has lower density at the upper part and higher density at the lower part. Pressure-mapping was used to visualize the pressure distribution patterns and to measure the average peak pressure when a mannequin head was placed on top of the pillow. The study observed that decreasing the density increases the softness of the DPNR latex foam. Softer latex foams led to larger surface contact area, and hence a reduced average peak pressure value. This cervical-shaped structure further increased the surface contact area between the pillow and mannequin head, and thus reduced further the average peak pressure value.

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Effects of Interface Pressure Distribution on Human Sleep Quality

Cited by 15 publications

References 36 publications

Improvement of Slow Wave Sleep Continuity by Mattress with Better Body Pressure Dispersal

Improvement of Slow Wave Sleep Continuity by Mattress with Better Body Pressure Dispersal

The Effect of Superficial Heat–Cold Application on the Sleep Quality of Patients With Restless Leg Syndrome: A Systematic Review and Meta‐Analysis

Development of latex foam pillows from deproteinized natural rubber latex

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