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Swimming Performance Assessment in Fishes
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Fish consumption, sleep, daily functioning, and heart rate variability.

Anita L Hansen1, Lisbeth Dahl2, Gina Olson3

  • 1University of Bergen, Bergen, Norway ; Centre for Research and Education in Forensic Psychiatry, Haukeland University Hospital, Bergen, Norway.

Journal of Clinical Sleep Medicine : JCSM : Official Publication of the American Academy of Sleep Medicine
|May 10, 2014
PubMed
Summary

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This summary is machine-generated.

Consuming fatty fish improved sleep and daily functioning in forensic patients. This dietary change positively impacted heart rate variability (HRV) and omega-3 levels, suggesting a link to better sleep and overall well-being.

Area of Science:

  • Nutritional Neuroscience
  • Sleep Science
  • Biomarker Analysis

Background:

  • Dietary intake, particularly omega-3 fatty acids from fish, is increasingly recognized for its role in physiological and psychological well-being.
  • Specific biomarkers like vitamin D and heart rate variability (HRV) are associated with sleep quality and daily functioning.
  • Understanding the interplay between diet, biomarkers, and health outcomes is crucial for targeted interventions.

Purpose of the Study:

  • To investigate the effects of regular fatty fish consumption on sleep parameters, daily functioning, and key biomarkers in a forensic patient population.
  • To explore the relationships between sleep, daily functioning, HRV, vitamin D status, and omega-3 fatty acid levels (EPA+DHA).

Main Methods:

  • A randomized controlled trial involving 95 male forensic patients assigned to consume Atlantic salmon (Fish group) or a control meal three times weekly for six months.
Keywords:
DHAEPAHRVdaily functioningfatty fish consumptionsleepvitamin D

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  • Assessment of sleep (latency, efficiency, duration), self-perceived sleep quality, daily functioning, vitamin D status, red blood cell EPA+DHA levels, and HRV before and after the intervention.
  • Statistical analysis to compare changes between the Fish and Control groups and to examine correlations between variables.

    • Main Results:

    • The Fish group demonstrated improved daily functioning compared to the Control group post-intervention.
    • Fish consumption led to significant improvements in resting heart rate variability (HRV) and red blood cell eicosapentaenoic acid (EPA) + docosahexaenoic acid (DHA) levels.
    • While vitamin D status did not significantly change, the Fish group maintained levels closer to the optimal range.
    • Positive correlations were observed between vitamin D status and sleep efficiency/quality, and between HRV and daily functioning.

    Conclusions:

    • Regular consumption of fatty fish, particularly Atlantic salmon, positively influences sleep quality and daily functioning.
    • The observed benefits may be mediated by improvements in heart rate variability (HRV) and omega-3 fatty acid status.
    • Dietary interventions involving fatty fish show promise for enhancing well-being in institutionalized populations.