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Effects of transitions into and out of daylight saving time on the quality of the sleep/wake cycle: an actigraphic study in healthy university students.
Chronobiol Int. 2013 Dec; 30(10):1218-22.CI

Abstract

The main goal of the present study was to examine the effects of transition into and out of daylight saving time (DST) on the quality of the sleep/wake cycle, assessed through actigraphy. To this end, 14 healthy university students (mean age: 26.86 ± 3.25 yrs) wore an actigraph for 7 d before and 7 d after the transition out of and into DST on fall 2009 and spring 2010, respectively. The following parameters have been compared before and after the transition, separately for autumn and spring changes: bedtime (BT), get-up time (GUT), time in bed (TIB), sleep onset latency (SOL), fragmentation index (FI), sleep efficiency (SE), total sleep time (TST), wake after sleep onset (WASO), mean activity score (MAS), and number of wake bouts (WB). After the autumn transition, a significant advance of the GUT and a decrease of TIB and TST were observed. On the contrary, spring transition led to a delay of the GUT, an increase of TIB, TST, WASO, MAS, and WB, and a decrease of SE. The present results highlight a more strong deterioration of sleep/wake cycle quality after spring compared with autumn transition, confirming that human circadian system more easily adjusts to a phase delay (autumn change) than a phase advance (spring transition).

Authors+Show Affiliations

Department of Psychology, University of Bologna , Bologna , Italy .No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

23998287

Citation

Tonetti, Lorenzo, et al. "Effects of Transitions Into and Out of Daylight Saving Time On the Quality of the Sleep/wake Cycle: an Actigraphic Study in Healthy University Students." Chronobiology International, vol. 30, no. 10, 2013, pp. 1218-22.
Tonetti L, Erbacci A, Fabbri M, et al. Effects of transitions into and out of daylight saving time on the quality of the sleep/wake cycle: an actigraphic study in healthy university students. Chronobiol Int. 2013;30(10):1218-22.
Tonetti, L., Erbacci, A., Fabbri, M., Martoni, M., & Natale, V. (2013). Effects of transitions into and out of daylight saving time on the quality of the sleep/wake cycle: an actigraphic study in healthy university students. Chronobiology International, 30(10), 1218-22. https://doi.org/10.3109/07420528.2013.812651
Tonetti L, et al. Effects of Transitions Into and Out of Daylight Saving Time On the Quality of the Sleep/wake Cycle: an Actigraphic Study in Healthy University Students. Chronobiol Int. 2013;30(10):1218-22. PubMed PMID: 23998287.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effects of transitions into and out of daylight saving time on the quality of the sleep/wake cycle: an actigraphic study in healthy university students. AU - Tonetti,Lorenzo, AU - Erbacci,Alex, AU - Fabbri,Marco, AU - Martoni,Monica, AU - Natale,Vincenzo, Y1 - 2013/09/03/ PY - 2013/9/4/entrez PY - 2013/9/4/pubmed PY - 2014/6/19/medline SP - 1218 EP - 22 JF - Chronobiology international JO - Chronobiol Int VL - 30 IS - 10 N2 - The main goal of the present study was to examine the effects of transition into and out of daylight saving time (DST) on the quality of the sleep/wake cycle, assessed through actigraphy. To this end, 14 healthy university students (mean age: 26.86 ± 3.25 yrs) wore an actigraph for 7 d before and 7 d after the transition out of and into DST on fall 2009 and spring 2010, respectively. The following parameters have been compared before and after the transition, separately for autumn and spring changes: bedtime (BT), get-up time (GUT), time in bed (TIB), sleep onset latency (SOL), fragmentation index (FI), sleep efficiency (SE), total sleep time (TST), wake after sleep onset (WASO), mean activity score (MAS), and number of wake bouts (WB). After the autumn transition, a significant advance of the GUT and a decrease of TIB and TST were observed. On the contrary, spring transition led to a delay of the GUT, an increase of TIB, TST, WASO, MAS, and WB, and a decrease of SE. The present results highlight a more strong deterioration of sleep/wake cycle quality after spring compared with autumn transition, confirming that human circadian system more easily adjusts to a phase delay (autumn change) than a phase advance (spring transition). SN - 1525-6073 UR - https://www.unboundmedicine.com/medline/citation/23998287/Effects_of_transitions_into_and_out_of_daylight_saving_time_on_the_quality_of_the_sleep/wake_cycle:_an_actigraphic_study_in_healthy_university_students_ DB - PRIME DP - Unbound Medicine ER -