An exploratory investigation of the effect of naturalistic light on fatigue and subjective sleep quality in stroke patients admitted for rehabilitation: A randomized controlled trial
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An exploratory investigation of the effect of naturalistic light on fatigue and subjective sleep quality in stroke patients admitted for rehabilitation : A randomized controlled trial. / West, Anders; Simonsen, Sofie Amalie; Jennum, Poul; Cyril Hansen, Niklas; Schønsted, Marie; Zielinski, Alexander; Sander, Birgit; Iversen, Helle K.
In: NeuroRehabilitation, Vol. 45, No. 2, 2019, p. 187-200.Research output: Contribution to journal › Journal article › peer-review
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TY - JOUR
T1 - An exploratory investigation of the effect of naturalistic light on fatigue and subjective sleep quality in stroke patients admitted for rehabilitation
T2 - A randomized controlled trial
AU - West, Anders
AU - Simonsen, Sofie Amalie
AU - Jennum, Poul
AU - Cyril Hansen, Niklas
AU - Schønsted, Marie
AU - Zielinski, Alexander
AU - Sander, Birgit
AU - Iversen, Helle K
PY - 2019
Y1 - 2019
N2 - BACKGROUND: Daylight entrains the central circadian pacemaker to the 24-hour day and is crucial for optimal alertness and sleep-quality. Rehabilitation patients tend to lack exposure to sufficient natural light.OBJECTIVE: Installed diurnal naturalistic light may reduce the known disrupted sleep quality and fatigue seen in post stroke patients.METHODS: Stroke patients were randomized to either an intervention rehabilitation unit (IU) equipped with naturalistic lighting (artificial sunlight spectrum) or to a control rehabilitation unit (CU) with standard indoor lighting. At inclusion and discharge, fatigue and subjective sleep quality were measured.RESULTS: Ninety stroke patients were included between May 2014, and June 2015. At discharge, patients from the IU experienced less fatigue than the CU patients, based on the Multidimensional Fatigue Inventory questionnaire general (IU, n = 28; CU, n = 30; diff - 20.6%, 95% confidence interval (CI) [- 35.0%; - 3.0%]; P = 0.025) and the Rested Statement (IU, n = 28; CU, n = 30; diff + 41.6%, 95% CI [+4.6%; +91.8%]; P = 0.025). No differences were detected between groups in sleepiness or subjective sleep quality by the Pittsburgh Sleep Quality Index.CONCLUSIONS: Fatigue was significantly reduced in rehabilitation patients exposed to naturalistic lighting during admission.
AB - BACKGROUND: Daylight entrains the central circadian pacemaker to the 24-hour day and is crucial for optimal alertness and sleep-quality. Rehabilitation patients tend to lack exposure to sufficient natural light.OBJECTIVE: Installed diurnal naturalistic light may reduce the known disrupted sleep quality and fatigue seen in post stroke patients.METHODS: Stroke patients were randomized to either an intervention rehabilitation unit (IU) equipped with naturalistic lighting (artificial sunlight spectrum) or to a control rehabilitation unit (CU) with standard indoor lighting. At inclusion and discharge, fatigue and subjective sleep quality were measured.RESULTS: Ninety stroke patients were included between May 2014, and June 2015. At discharge, patients from the IU experienced less fatigue than the CU patients, based on the Multidimensional Fatigue Inventory questionnaire general (IU, n = 28; CU, n = 30; diff - 20.6%, 95% confidence interval (CI) [- 35.0%; - 3.0%]; P = 0.025) and the Rested Statement (IU, n = 28; CU, n = 30; diff + 41.6%, 95% CI [+4.6%; +91.8%]; P = 0.025). No differences were detected between groups in sleepiness or subjective sleep quality by the Pittsburgh Sleep Quality Index.CONCLUSIONS: Fatigue was significantly reduced in rehabilitation patients exposed to naturalistic lighting during admission.
KW - Attention
KW - Circadian Rhythm
KW - Fatigue/etiology
KW - Female
KW - Humans
KW - Male
KW - Middle Aged
KW - Phototherapy/methods
KW - Sleep
KW - Sleep Wake Disorders/etiology
KW - Stroke/complications
KW - Stroke Rehabilitation/methods
KW - Sunlight
KW - Wakefulness
U2 - 10.3233/NRE-192752
DO - 10.3233/NRE-192752
M3 - Journal article
C2 - 31498136
VL - 45
SP - 187
EP - 200
JO - NeuroRehabilitation
JF - NeuroRehabilitation
SN - 1053-8135
IS - 2
ER -
ID: 237799227