Transition into daylight saving time influences the fragmentation of the rest-activity cycle

Lahti, Tuuli; Leppämäki, Sami; Ojanen, Sanna-Maria; Haukka, Jari; Tuulio‐Henriksson, Annamari; Lönnqvist, Jouko; Partonen, Timo

doi:10.1186/1740-3391-4-1

Cited by 29 publications

(23 citation statements)

References 15 publications

(13 reference statements)

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“…Perhaps this subtle psychological and mood distress may also cause a spontaneous avoidance of some daily activities and may be responsible for a significantly lower occurrence of AMI associated with physical activity in the days immediately after the DST changes in the present report. This hypothesis may be directly supported by the observation that after the transition into DST, daily activities are significantly reduced in all individuals during the next day, and in long-sleepers and morning types remain reduced for at least next 5 d (Lahti et al, 2006b).…”

Section: Discussionmentioning

confidence: 88%

“…In the present study population, the increase in incidence attributable to the DST transitions was approximately 1 in 100 AMIs per year. A body of evidence suggests that both DST shifts significantly disturb a normal sleep pattern in a manner that may vary according to age, sex, chronotype, and genetic or environmental factors (Adan & Natale, 2002;Monk & Aplin, 1980;Kantermann et al, 2007;Lahti et al, 2006aLahti et al, , 2006bLahti et al, , 2008Roenneberg et al, 2003). This evidence provides the central tenet for the hypothesis that DST shifts may be associated with an increased risk of AMI, and that the risk is not the same in all patient subgroups.…”

Section: Discussionmentioning

confidence: 89%

“…In March, when the clocks are turned forwards, this 1 h of shorter sleeping perhaps more affects men because they are, on average, for most of their adulthood later chronotypes than women (Adan & Natale, 2002). It has also been observed that the transition to DST may be especially disruptive for late chronotypes (Lahti et al, 2006a,b;Kantermann et al, 2007) or short-sleepers (Lahti et al, 2006b) and may more often cause insomnia and mood changes in susceptible individuals than the transition from DST (Monk & Aplin, 1980).…”

Section: Discussionmentioning

confidence: 96%

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Daylight saving time transitions and acute myocardial infarction

Čulić

2013

Chronobiology International

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Most recently, the possible impact of transitions to and from daylight saving time (DST) on the increased incidence of acute myocardial infarction (AMI) has been suggested. The goal of this report was to analyze independent influence of DST transitions on the incidence of AMI with simultaneous control for the confounding presence of situational triggers such as physical exertion, emotional stress, heavy meals, and sexual intercourse, as well as for other clinical factors. Detailed information was obtained from 2412 patients and included baseline characteristics, working status, exact time of AMI, possible external triggers, cardiovascular risk factors, and prehospital medication. AMI incidence on days after the DST was compared with incidence during control periods and patient characteristics, cardiovascular medication, and circumstances of AMI were evaluated to identify potential risk modifiers. Relative risks of AMI and differences in patient characteristics were expressed through incidence ratios and odds ratios, respectively, with 95% confidence intervals (CIs). Multivariate analysis was performed by using a stepwise multiple regression to assess the independent predictive significance of the characteristics of patients for the AMI occurring in the posttransitional period. The incidence ratio for AMI for the first four workdays after the spring DST transition was 1.29 (95% CI: 1.09-1.49) and the excess was particularly prominent on Monday. In autumn, the incidence ratio for AMI for this 4-d period was 1.44 (95% CI: 1.19-1.69), with peaks on Tuesday and Thursday. The independent predictors for AMI during this period in spring were male sex (p = 0.03) and nonengagement in physical activity (p = 0.02) and there was a trend for the lower risk of incident among those taking calcium antagonists (p = 0.07). In autumn, the predictors were female sex (p = 0.04), current employment (p = 0.006), not taking β-blocker (p = 0.03), and nonengagement in physical activity (p = 0.02). The present report supports the possibility that DST transitions represent additional chronobiological feature of AMI, and that risk of an onset varies according to sex, employment status, and the taking of cardiovascular medication.

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Section: Discussionmentioning

confidence: 88%

Section: Discussionmentioning

confidence: 89%

Section: Discussionmentioning

confidence: 96%

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Daylight saving time transitions and acute myocardial infarction

Čulić

2013

Chronobiology International

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“…Lahti et al . () explain how they use wrist accelerometers to measure the amount of activity a person has during a 24‐hour period (activity verses inactivity). Anderson et al .…”

Section: Resultsmentioning

confidence: 99%

“…Another commonly used definition of rest is the cessation of activity (Merriam-Webster online undated). Lahti et al (2006) explain how they use wrist accelerometers to measure the amount of activity a person has during a 24-hour period (activity verses inactivity). Anderson et al (2008) explain rest as periods of inactivity when measuring breathing patterns of adults during the day when sitting.…”

Section: Definitions Of Rest From Dictionariesmentioning

confidence: 99%