{
  "abstract": "Background/Objectives: Simple anthropometry may complement nutritional assessment in irritable bowel syndrome (IBS). We examined the associations of arm anthropometry and handgrip strength (HGS) with bioelectrical impedance analysis (BIA) parameters. Methods: This cross-sectional baseline analysis included 55 adults with IBS-D or IBS-M for valid non-adiposity measurements; 54 contributed valid paired body-fat estimates, and 54 had valid dominant-hand HGS. Results: MUAMC correlated with BIA-derived skeletal muscle mass within men (Spearman’s ρ = 0.748) and women (ρ = 0.673). After adjustment for sex, age, height and body weight, the MUAMC association was attenuated (β = 0.0337 kg/mm, 95% CI 0.0059–0.0616; p = 0.0187). MUAMC was correlated with phase angle in the pooled sample (ρ = 0.806), but sex-related differences were exploratory. In a sensitivity model using the impedance index, the association was not significant after further adjustment for body weight (β = 0.0670, 95% CI −0.0087 to 0.1427; p = 0.0816). HGS correlated with BIA-derived skeletal muscle mass before adjustment (ρ = 0.769; n = 54), whereas an adjusted association was not established. BIA- and skinfold-derived body-fat estimates were correlated but showed proportional bias, limiting interchangeability. Conclusions: MUAMC is associated with BIA-derived muscle-related parameters, but mathematical coupling, body size and the absence of a criterion method limit causal and validation claims. Findings from this exploratory single-centre analysis require independent confirmation.",
  "abstract_shown": true,
  "affiliations": [
    "Department of Internal Medicine and Clinical Nutrition Centre, Third Faculty of Medicine, Thomayer University Hospital, Charles University, Vídeňská 800, 140 59 Prague 4, Czech Republic",
    "Nutrition and Dietetics Centre, Thomayer University Hospital, Vídeňská 800, 140 59 Prague 4, Czech Republic",
    "Department of Hygiene, Epidemiology and Preventive Medicine, Third Faculty of Medicine, Charles University, Ruská 87, 100 00 Prague 10, Czech Republic"
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 6,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Jiří Vejmelka",
      "orcid": "0000-0002-7259-0586"
    },
    {
      "affs": [
        1
      ],
      "name": "Martina Kollerová"
    },
    {
      "affs": [
        2
      ],
      "name": "Ivana Pražanová"
    },
    {
      "affs": [
        1
      ],
      "name": "Khanh Ha Pham"
    },
    {
      "affs": [
        1
      ],
      "name": "Magdalena Trusinová"
    },
    {
      "affs": [
        0
      ],
      "name": "Pavel Kohout",
      "orcid": "0000-0002-3957-7005"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/dyxrgf3p3pv16.bib",
  "cited_by": 0,
  "doi": "10.3390/nu18213711",
  "fulltext_url": null,
  "id": "dyxrgf3p3pv16",
  "issns": [
    "2072-6643"
  ],
  "landing_url": "https://www.mdpi.com/2072-6643/18/21/3711",
  "language": null,
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [],
  "openalex": null,
  "pdf_url": null,
  "pmcid": null,
  "pmid": null,
  "published": "2026-11-09",
  "publisher": "MDPI AG",
  "ris": "https://research.draconitic.com/paper/dyxrgf3p3pv16.ris",
  "sources": [
    {
      "first_seen": "2026-11-10T00:21:40Z",
      "native_id": "10.3390/nu18213711",
      "source": "crossref",
      "url": "https://www.mdpi.com/2072-6643/18/21/3711"
    }
  ],
  "subjects": [
    {
      "field": "medicine",
      "origin": "issn:2072-6643",
      "subfield": "nutrition"
    }
  ],
  "title": "Associations of Anthropometry and Handgrip Strength with Bioelectrical Impedance Parameters in Irritable Bowel Syndrome: A Cross-Sectional Study",
  "title_text": "Associations of Anthropometry and Handgrip Strength with Bioelectrical Impedance Parameters in Irritable Bowel Syndrome: A Cross-Sectional Study",
  "type": "peer-reviewed",
  "updated_at": "2026-11-10T00:21:40Z",
  "url": "https://research.draconitic.com/paper/dyxrgf3p3pv16",
  "venue": "Nutrients",
  "versions": []
}