Does sleep fragmentation impact recuperation?A review and reanalysis

Wesensten, Nancy J.; Balkin, Thomas J.; Belenky, Gregory

doi:10.1046/j.1365-2869.1999.00161.x

Cited by 86 publications

(55 citation statements)

References 32 publications

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“…Although the proposed mediation of sleep awakenings Wesensten et al (1999) reported in a review that sleep fragmentation is negatively related to recuperation. Furthermore, the percentage of sleep spent in Stage 1, which has little or no recuperative value, increased during fragmentation nights, even though total sleep time did not change (Wesensten et al 1999). Compared with sleep duration, sleep fragmentation might be a milder form of sleep impairment, being initially largely unperceived in individuals.…”

Section: Discussionmentioning

confidence: 99%

Social Stressors at Work, Sleep, and Recovery

Pereira

Groß

2015

Appl Psychophysiol Biofeedback

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Many employees in service work are required to work on Saturdays, recovering during work-free Sundays and working again Mondays. We examined the effects of social stressors at work on recovery status at Sunday noon and Monday noon, and investigated if sleep quality mediates the negative effects of social stressors at work on recovery. From Saturday until Monday morning, 41 participants wore actigraphs to measure sleep duration and sleep fragmentation. Social stressors at work were assessed by self-reported questionnaires administered on Saturday. Recovery status was reported Sunday noon and Monday noon. Hierarchical regression analysis revealed that social stressors at work were negatively related to recovery status on Sunday and on Monday. Supporting our assumptions, more social stressors at work predicted higher sleep fragmentation in the night to Monday. A mediation effect of sleep quality, however, was not found. Theoretical and practical implications of these results are discussed.

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Section: Discussionmentioning

confidence: 99%

Social Stressors at Work, Sleep, and Recovery

Pereira

Groß

2015

Appl Psychophysiol Biofeedback

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“…Awakenings or microarousals, regardless of origin, may produce sleepiness, fatigue or compromise cognition by increasing the time spent in light sleep thereby displacing recuperative stable sleep, delta sleep, and REM sleep [13]. This appears to be true for the continuum of sleep disruption from gross awakening to micro-arousal and possibly even subcortical activation [14].…”

Section: Discussionmentioning

confidence: 99%

Comparison of hypopnea definitions in lean patients with known obstructive sleep apnea hypopnea syndrome (OSAHS)

2009

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Response to treatment was more tightly correlated with arousal based scoring rules B and C in this group of lean subjects. The1999 hypopnea rule was used at baseline to detect this cohort of patients with OSAHS that ultimately benefitted from treatment. Rule B detected OSAHS and correlated well with response to treatment, but many more were categorized as mild (5 < AHI < 15) at baseline. Since 40% of the subjects had an AHI less than 5 with Rule A, lack of sensitivity should be considered before applying Rule A to the scoring of sleep studies in lean patients.

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“…On the basis of these results, it is difficult to discriminate fully between the effects of breathing disorders on sleep structure and the effects of diurnal sleepiness, as the two factors may be interrelated [26]. However, assuming that the amount of SWS and stage 1 are indicative of sleep continuity and sleep restorative ability [27], the sleepdisturbing effects of the respiratory events accumulated during one night9s sleep may lead to tiredness and fatigue [28], which may be reflected by a decrease in physical function. Although there were no statistically significant differences between snorers and OSA patients in the current study group, it was noted that lower physical function and role physical scores were reported by OSA patients, in whom a lower amount of SWS and a greater amount of stage 1 was present, suggesting that the greater limitation in physical function may be a consequence of the recurrence of apnoeas.…”

Section: Discussionmentioning

confidence: 99%

Determinants of altered quality of life in patients with sleep-related breathing disorders

Sforza¹,

Janssens²,

Rochat³

et al. 2003

Eur Respir J

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Determinants of altered quality of life in patients with sleep-related breathing disorders. E. Sforza, J.P. Janssens, T. Rochat, V. Ibanez. #ERS Journals Ltd 2003. ABSTRACT: Recent reports have suggested that altered quality of life and well-being are reported by patients with sleep-related breathing disorders (SRBD). There seems to be no data available in the literature on factors underlying these behavioural consequences. In this study, health-related quality of life (HRQL) scores were examined in SRBD patients in order to establish which factors are implicated in these disturbances.The study group consisted of 130 patients: 49 snorers and 81 patients with obstructive sleep apnoea. The Medical Outcome Survey Short Form-36 questionnaire was administered the morning after the sleep study and scores for the eight dimension scores were obtained. Patient9s data were compared to normative sex-and age-matched data.In comparison with normal values, scores for all HRQL dimensions were decreased in SRBD patients, with a greater impact on subscores for "vitality", "physical role", "social functioning", "mental health" and "role emotional" dimensions. While impairment in physical function was mostly influenced by sleep stage and obesity, subjective daytime sleepiness mainly affected the other dimensions.The authors conclude that the altered health-related quality of life of sleep-related breathing disorder patients is a multifactorial phenomenon depending on the interaction of sleep stages, daytime sleepiness and obesity, with no significant contribution of sleep fragmentation, hypoxaemia and apnoea recurrence. Sleep-related breathing disorders (SRBD) are common disorders, which affect o2-4% of the general population and are characterised by repetitive pharyngeal collapse during sleep, inducing sleep fragmentation and nocturnal hypoxaemia. These two factors have been suggested as causal factors of the excessive daytime sleepiness and neuropsychological and cognitive disturbances affecting the daytime functioning of these patients. Several studies have demonstrated that a large number of patients with SRBD may also have altered health-related quality of life (HRQL) scores, using either generic questionnaires, such as the Nottingham Health Profile [1,2] or the Medical Outcome Survey Short Form (SF)-36 [3], or disease-specific questionnaires, such as the Calgary Sleep Apnea Quality of Life [4,5]. These all showed impairment more frequently in vitality and social functioning [6]. Despite the frequent association between SRBD and altered daily functioning and well-being [7,8], and the importance of altered quality of life in SRBD [6], no data are available in the literature concerning the mechanisms underlying these psychological disturbances. This could be due, at least in part, to the fact that quality of life scores are not routinely used by clinicians to detect the impact of the sleep disorder on the well-being of their patients [9] and also to the difficulty in defining which parameters better reflect a clinically meaning...

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Does sleep fragmentation impact recuperation?A review and reanalysis

Cited by 86 publications

References 32 publications

Social Stressors at Work, Sleep, and Recovery

Social Stressors at Work, Sleep, and Recovery

Comparison of hypopnea definitions in lean patients with known obstructive sleep apnea hypopnea syndrome (OSAHS)

Determinants of altered quality of life in patients with sleep-related breathing disorders

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