Please use this identifier to cite or link to this item: https://ahro.austin.org.au/austinjspui/handle/1/35420
Title: SleepSync: Early Testing of a Personalised Sleep-Wake Management Smartphone Application for Improving Sleep and Cognitive Fitness in Defence Shift Workers.
Austin Authors: Varma, Prerna;Postnova, Svetlana;Knock, Stuart;Howard, Mark E ;Aidman, Eugene;Rajaratnam, Shantha W M;Sletten, Tracey L
Affiliation: Turner Institute for Brain and Mental Health and School of Psychological Sciences, Monash University, Clayton, VIC 3168, Australia.
School of Physics, The University of Sydney, Camperdown, NSW 2050, Australia.
Institute for Breathing and Sleep
Defence, Science and Technology Group, Department of Defence, Edinburgh, SA 5111, Australia.;School of Biomedical Sciences & Pharmacy, University of Newcastle, Callaghan, NSW 2308, Australia.
School of Biomedical Sciences & Pharmacy, University of Newcastle, Callaghan, NSW 2308, Australia.;Division of Sleep and Circadian Disorders, Departments of Medicine and Neurology, Brigham and Women's Hospital, Boston, MA 02115, USA.;Division of Sleep Medicine, Harvard Medical School, Boston, MA 02115, USA.
Turner Institute for Brain and Mental Health and School of Psychological Sciences, Monash University, Clayton, VIC 3168, Australia.
Issue Date: 29-May-2024
Date: 2024
Publication information: Clocks & Sleep 2024-05-29; 6(2)
Abstract: Shift work, long work hours, and operational tasks contribute to sleep and circadian disruption in defence personnel, with profound impacts on cognition. To address this, a digital technology, the SleepSync app, was designed for use in defence. A pre-post design study was undertaken to examine whether four weeks app use improved sleep and cognitive fitness (high performance neurocognition) in a cohort of shift workers from the Royal Australian Air Force. In total, 13 of approximately 20 shift-working personnel from one base volunteered for the study. Sleep outcomes were assessed using the Insomnia Severity Index (ISI), the Patient-Reported Outcomes Measurement Information System (PROMIS), Sleep Disturbance and Sleep-Related Impairment Scales, the Glasgow Sleep Effort Scale, the Sleep Hygiene Index, and mental health was assessed using the Depression, Anxiety, and Stress Scale-21. Sustained attention was measured using the 3-min Psychomotor Vigilance Task (PVT) and controlled response using the NBack. Results showed significant improvements in insomnia (ISI scores 10.31 at baseline and 7.50 after app use), sleep-related impairments (SRI T-scores 53.03 at baseline to 46.75 post-app use), and healthy sleep practices (SHI scores 21.61 at baseline to 18.83 post-app use; all p < 0.001). Trends for improvement were recorded for depression. NBack incorrect responses reduced significantly (9.36 at baseline; reduced by -3.87 at last week of app use, p < 0.001), but no other objective measures improved. These findings suggest that SleepSync may improve sleep and positively enhance cognitive fitness but warrants further investigation in large samples. Randomised control trials with other cohorts of defence personnel are needed to confirm the utility of this intervention in defence settings.
URI: https://ahro.austin.org.au/austinjspui/handle/1/35420
DOI: 10.3390/clockssleep6020019
ORCID: 0000-0001-7772-1496
0000-0002-7711-794X
0000-0002-0005-7838
Journal: Clocks & Sleep
Start page: 267
End page: 280
PubMed URL: 38920420
ISSN: 2624-5175
Type: Journal Article
Subjects: behaviour change
digital health
intervention development
military health
shift work
sleep health support
Appears in Collections:Journal articles

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