The effects of napping on cognitive functioning

Lovato, Nicole; Lack, Leon

doi:10.1016/b978-0-444-53702-7.00009-9

Cited by 163 publications

(154 citation statements)

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“…A qualidade do sono e a sonolência diurna são as principais funções analisadas 8 . A sonolência diurna excessiva é definida como um aumento da tendência a cochilar ou adormecer em horários ou situações inadequadas 9,10 . A regularidade do estilo de vida é alcançada quando os horários das atividades da vida diária tais como: levantar da cama, tomar café, almoçar, trabalhar, entre outras, são regulares, ou seja, são realizadas numa frequência de três ou mais vezes por semana em horários muito semelhantes, expressando um ritmo social que influencia o sistema circadiano do indivíduo que é medido através do Social Rhythm Metric (SRM) 11 .…”

Section: Endereço Para Correspondênciaunclassified

Cronotipo e implicações para sua utilização na fisioterapia em pacientes com acidente vascular encefálico

Campos

Pinheiro²,

Diógenes³

et al. 2011

Fisioter. Pesqui.

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ABStRAct:In clinical practice, the physical therapist often evaluates and programs the patient's treatment without taking into account the temporal variation of functions and behaviors. The aim of this study was to analyze the influence of the chronotype (morning type -evening type), sleep-wake state (sleep quality and excessive sleepiness) and lifestyle regularity in determining the preferred time of day for physical and mental activities following stroke. Participants responded to the MorningnessEveningness Questionnaire (MEQ), the Pittsburgh Sleep Quality Index (PSQI), the Epworth Sleepiness Scale (ESS) and the Social Rhythm Metric (SRM). The subjects were asked at what time of day they preferred to perform physical (exercises) and mental (tasks of reasoning) activities, considering only their well-being. A total of 42 patients (61±9 years) in the chronic stage after stroke (18±21 months) and 12 healthy individuals took part in the study. The data were analyzed using the χ 2 test and multiple regression. Among the patients evaluated, 64% had poor sleep quality, 43% excessive sleepiness and 57% an irregular daily routine. Regression analysis showed that chronotype was the only factor studied that influenced the preferred time of day for the activities. The results indicate the need for the physical therapist to analyze how chronotype can affect patient performance before establishing time of day of the physical therapy sessions.

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Section: Endereço Para Correspondênciaunclassified

Cronotipo e implicações para sua utilização na fisioterapia em pacientes com acidente vascular encefálico

Campos

Pinheiro²,

Diógenes³

et al. 2011

Fisioter. Pesqui.

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“…10,11,19,23 Presently, pregnant women have received little attention with regard to daytime naps and their possible consequences BRIEF SUMMARY Current Knowledge/Study Rationale: Pregnant women report signifi cantly more nocturnal sleep disruption than non-pregnant women. We wanted to evaluate whether daytime naps either hindered nocturnal sleep or might be a "countermeasure" to offset poor nocturnal sleep.…”

Section: S C I E N T I F I C I N V E S T I G At I O N Smentioning

confidence: 99%

“…22 Others have found that those who napped regularly (compared to those who rarely napped) had increased benefi ts from self-repo rted naps. 19,23 Benefi ts included improved cognitive functioning, short-term memory and mood, and benefi cial changes in immune parameters. or benefits.…”

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confidence: 99%

“…Most of the research has focused on the critical length that a nap needs to be to observe improvement in cognitive function, performance, or memory. 23,40 Essentially all studies indicate positive outcomes on daytime sleepiness following a nap. 10,23,40 The consensus here is that healthy young adults should nap 10-30 min; naps > 30 min are thought to produce sleep inertia such that performance is improved only after a period of time has elapsed.…”

mentioning

confidence: 99%

“…23,40 Essentially all studies indicate positive outcomes on daytime sleepiness following a nap. 10,23,40 The consensus here is that healthy young adults should nap 10-30 min; naps > 30 min are thought to produce sleep inertia such that performance is improved only after a period of time has elapsed. 10,40,41 This, however, does not adequately address the notion that naps of greater length might be beneficial for augmenting short/disturbed nocturnal sleep, 10 particularly among pregnant women.…”

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confidence: 99%

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Minimal Effect of Daytime Napping Behavior on Nocturnal Sleep in Pregnant Women

Ebert

Wood

Okun

2015

Journal of Clinical Sleep Medicine

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Study Objectives: To assess whether daytime naps negatively impact nocturnal sleep. Design: Longitudinal, prospective cohort design. Participants: 161 pregnant women recruited and evaluated in early gestation (10-20 weeks). Measurements and Results: Daily sleep information was collected in three 2-week periods (10-12, 14-16, and 18-20 weeks gestation) with a daily sleep diary and an actigraph. The average number of naps, as well as the average length of each nap, were calculated from sleep diaries. Women were categorized fi rst as non nappers (0 naps/2-week period), moderate nappers (1-3 naps/2-week period), or frequent nappers (≥ 4 naps/2-week period). Then, based on the average nap length, they were categorized as short (< 90 min) or long (≥ 90 min) nappers. Nocturnal sleep parameters included SOL, WASO, SE, and TST. SAS procedure MIXED was used for modeling the main effects of nap group and time, and time by nap group interactions. Women who took naps had a decrease in diary-assessed nocturnal TST, but not actigraphy-assessed TST. This observation was group-and time-specifi c. There were no other group differences. Women who napped ≥ 90 min had poorer diary-assessed SE and lower diary-assessed TST than those who took shorter naps. Length of nap was not associated with any other sleep measures. Conclusions:The number of daytime naps have minimal impact on nocturnal sleep parameters; however, long nappers did exhibit modestly impaired sleep continuity and sleep quality. Overall, we propose that daytime naps provide a benefi cial countermeasure to the sleep disruption commonly reported by pregnant women. This may be clinically benefi cial given that sleep continuity and quality are important correlates of pregnancy outcomes. T he majority of expectant women experience progressively disturbed, fragmented, and shortened nocturnal sleep as a result of normal physiological adaptations to the progressing pregnancy.1-3 Emerging evidence indicates that insuffi cient quantity and poor sleep quality are associated with increased risk of mood dysregulation , 4,5 as well as adverse pregnancy outcomes, such as preterm birth and gestational diabete s. 6-8When suffi cient nighttime sleep is not possible or unattainable, certain strategies can be implemented to counteract the negative effects of disturbed nocturnal sleep. One promising approach is to include daytime naps as part of a healthy sleep hygiene progra m. 9-11There is limited information examining the effects of daytime naps on nocturnal sleep outcomes in non-pregnant populations. The majority of evidence stems from examination of daytime naps in elderly or middle-aged individuals or children. The bulk, however, consider daytime naps as a positive health behavior (a "countermeasure") in that they can effectively combat subjectively reported poor sleep quality and decrease subjective daytime sleepiness by augmenting shortened nocturnal sleep durat ion.11-14 However, there is also a small literature that suggests that naps can be detrimental to nocturnal sleep and ne...

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Positive Neuropsychology

2013

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The effects of napping on cognitive functioning

Cited by 163 publications

References 50 publications

Cronotipo e implicações para sua utilização na fisioterapia em pacientes com acidente vascular encefálico

Cronotipo e implicações para sua utilização na fisioterapia em pacientes com acidente vascular encefálico

Minimal Effect of Daytime Napping Behavior on Nocturnal Sleep in Pregnant Women

Positive Neuropsychology

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