Impact of exposure to extremely low-frequency magnetic fields on blood pressure, heart rate

PAPER manual Int J Occup Saf Ergon 2024 Other Effect: harm Evidence: Low

Read original paper → DOI: 10.1080/10803548.2024.2413816 Evidence Lab

Abstract

Impact of exposure to extremely low-frequency magnetic fields on blood pressure, heart rate variation and disturbance to quality of sleep on industrial workers in Korea Amila Madhushanka Weerasinghe SDNAM, Liyanage S, Rajitha Kawshalya MAD, Hong SC. Impact of exposure to extremely low-frequency magnetic fields on blood pressure, heart rate variation and disturbance to quality of sleep on industrial workers in Korea. Int J Occup Saf Ergon. 2024 Nov 23:1-8. doi: 10.1080/10803548.2024.2413816. Abstract Objectives: This study investigates the potential health risks associated with exposure to extremely low- frequency magnetic fields (ELF-MFs), focusing on the impact on sleep quality. The hypothesis is that increasing ELF-MF exposure will correlate with elevated blood pressure (BP), altered heart rate (HR) dynamics and poorer sleep quality among occupational workers in Korea. Methods: The study involved 85 participants. Assessment of ELF-MF exposure was carried out continuously for 24 h in the two groups. Measurements of BP parameters, HR and sleep quality were conducted accordingly. Results: The study found significant ELF-MF exposure levels in both working and sleeping times for industrial factory workers (0.19 ± 0.38 and 0.17 ± 0.23 μT, p < 0.05). Long-term exposure among industrial workers may contribute to a significant difference in systolic blood pressure (SBP) (125.61 ± 9.60 mm Hg, p < 0.05). Additionally, a significant difference in deep sleep analysis was observed between the high-exposure and low-exposure groups (67.13 ± 31.15 min, p < 0.05). Conclusion: The hypothesis was confirmed, indicating possible effects of high ELF-MF exposure on SBP and deep sleep. However, further research on long-term exposure and its association with sleep quality disturbances is needed for validation Open access paper: tandfonline.com

AI evidence extraction

At a glance

Study type

Other

Effect direction

harm

Population

Industrial workers in Korea

Sample size

Exposure

ELF occupational · continuous 24 h assessment

Evidence strength

Low

Confidence: 74% · Peer-reviewed: yes

Main findings

Among 85 industrial workers, ELF-MF exposure was reported during both working and sleeping times (0.19 ± 0.38 and 0.17 ± 0.23 μT; p < 0.05). Long-term exposure was associated with a significant difference in systolic blood pressure (125.61 ± 9.60 mm Hg; p < 0.05) and a significant difference in deep sleep between high- and low-exposure groups (67.13 ± 31.15 min; p < 0.05).

Outcomes measured

blood pressure (systolic blood pressure)
heart rate
sleep quality
deep sleep duration

Limitations

Study design not specified in abstract
Exposure frequency characteristics not reported (only field levels in μT)
Duration/definition of 'long-term exposure' not clearly defined in abstract
Other BP parameters and heart rate results not detailed in abstract
Potential confounding and adjustment methods not described

Suggested hubs

occupational-exposure (0.9)
Study evaluates ELF magnetic field exposure in industrial workers with 24 h monitoring and health outcomes.

View raw extracted JSON

{
    "study_type": "other",
    "exposure": {
        "band": "ELF",
        "source": "occupational",
        "frequency_mhz": null,
        "sar_wkg": null,
        "duration": "continuous 24 h assessment"
    },
    "population": "Industrial workers in Korea",
    "sample_size": 85,
    "outcomes": [
        "blood pressure (systolic blood pressure)",
        "heart rate",
        "sleep quality",
        "deep sleep duration"
    ],
    "main_findings": "Among 85 industrial workers, ELF-MF exposure was reported during both working and sleeping times (0.19 ± 0.38 and 0.17 ± 0.23 μT; p < 0.05). Long-term exposure was associated with a significant difference in systolic blood pressure (125.61 ± 9.60 mm Hg; p < 0.05) and a significant difference in deep sleep between high- and low-exposure groups (67.13 ± 31.15 min; p < 0.05).",
    "effect_direction": "harm",
    "limitations": [
        "Study design not specified in abstract",
        "Exposure frequency characteristics not reported (only field levels in μT)",
        "Duration/definition of 'long-term exposure' not clearly defined in abstract",
        "Other BP parameters and heart rate results not detailed in abstract",
        "Potential confounding and adjustment methods not described"
    ],
    "evidence_strength": "low",
    "confidence": 0.7399999999999999911182158029987476766109466552734375,
    "peer_reviewed_likely": "yes",
    "keywords": [
        "extremely low-frequency magnetic fields",
        "ELF-MF",
        "occupational exposure",
        "industrial workers",
        "blood pressure",
        "systolic blood pressure",
        "heart rate",
        "sleep quality",
        "deep sleep",
        "Korea"
    ],
    "suggested_hubs": [
        {
            "slug": "occupational-exposure",
            "weight": 0.90000000000000002220446049250313080847263336181640625,
            "reason": "Study evaluates ELF magnetic field exposure in industrial workers with 24 h monitoring and health outcomes."
        }
    ]
}

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AI-extracted fields are generated from the abstract/metadata and may be incomplete or incorrect. This content is for informational purposes only and is not medical advice.

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