{
  "abstract": "Sarcopenia is a progressive and generalized skeletal muscle disorder characterized by loss of muscle strength, reduced muscle quantity or quality, and impaired physical performance. It is associated with adverse outcomes including falls, fractures, physical disability, and mortality, and represents a growing global health concern. However, currently available clinical assessments provide limited information on the electrophysiological and neuromuscular alterations that may precede overt functional decline. Magnetomyography (MMG)—here defined as the non-invasive detection of biomagnetic fields generated by skeletal muscle electrical activity and distinguished from mechanomyography—offers a contactless approach to characterizing muscle electrophysiology. Recent advances in optically pumped magnetometers, portable magnetic shielding, and signal-processing methods have expanded the feasibility of MMG for detecting muscle action potentials, motor-unit activity, fatigue-related changes, and training adaptations. In this perspective review, we summarize the principles and technological development of MMG, critically evaluate current evidence for skeletal muscle assessment, and discuss its potential relevance to sarcopenia. In particular, we propose a conceptual framework in which MMG could complement established assessments by characterizing neuromuscular integrity, investigating potential neural and muscular contributions to functional decline, and monitoring responses to intervention. Importantly, direct evidence in individuals with sarcopenia is currently lacking, and MMG remains an experimental rather than clinically validated diagnostic approach.",
  "abstract_shown": true,
  "affiliations": [
    "Shandong Key Laboratory: Magnetic Field-Free Medicine & Functional Imaging (MF), Qilu Hospital of Shandong University, Jinan, China",
    "Department of Geriatrics, Qilu Hospital of Shandong University, Jinan, China",
    "Shandong University, Jinan, China",
    "Key Laboratory of Ultra-Weak Magnetic Field Measurement Technology, Ministry of Education, School of Instrumentation and Optoelectronic Engineering, Beihang University, Beijing, China",
    "Zhejiang Provincial Key Laboratory of Ultra-Weak Magnetic-Field Space and Applied Technology, Hangzhou Innovation Institute, Beihang University, Hangzhou, China"
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 9,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Haijun Li"
    },
    {
      "affs": [
        1
      ],
      "name": "Haijun Li"
    },
    {
      "affs": [
        1
      ],
      "name": "Zhihao Yao"
    },
    {
      "affs": [
        2
      ],
      "name": "Zhihao Yao"
    },
    {
      "affs": [
        0
      ],
      "name": "Yuankun Qi"
    },
    {
      "affs": [
        3
      ],
      "name": "Yuankun Qi"
    },
    {
      "affs": [
        4
      ],
      "name": "Yuankun Qi"
    },
    {
      "affs": [
        0
      ],
      "name": "Hongyu Zhang"
    },
    {
      "affs": [
        1
      ],
      "name": "Hongyu Zhang"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/9qy5achgvpeg4.bib",
  "cited_by": 0,
  "doi": "10.3389/fphys.2026.1889632",
  "fulltext_url": "https://www.frontiersin.org/articles/10.3389/fphys.2026.1889632/full",
  "id": "9qy5achgvpeg4",
  "issns": [
    "1664-042X"
  ],
  "landing_url": "https://doi.org/10.3389/fphys.2026.1889632",
  "language": "en",
  "licence": "CC-BY",
  "licence_label": "CC BY",
  "licence_source": "journal",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "lcc",
      "QP1-981"
    ]
  ],
  "openalex": null,
  "pdf_url": null,
  "pmcid": null,
  "pmid": null,
  "published": "2026-11-04",
  "publisher": "Frontiers Media S.A.",
  "ris": "https://research.draconitic.com/paper/9qy5achgvpeg4.ris",
  "sources": [
    {
      "first_seen": "2026-11-04T14:20:54Z",
      "native_id": "0b00723c06944415b7a86f9e1c41f991",
      "source": "doaj",
      "url": "https://doi.org/10.3389/fphys.2026.1889632"
    }
  ],
  "subjects": [
    {
      "field": "medicine",
      "origin": "lcc:QP1-981",
      "subfield": "physiology"
    }
  ],
  "title": "Magnetomyography for skeletal muscle function assessment: prospective applications in sarcopenia",
  "title_text": "Magnetomyography for skeletal muscle function assessment: prospective applications in sarcopenia",
  "type": "peer-reviewed",
  "updated_at": "2026-11-06T14:20:20Z",
  "url": "https://research.draconitic.com/paper/9qy5achgvpeg4",
  "venue": "Frontiers in Physiology",
  "versions": []
}