{
  "abstract": "Purpose: To examine associations between accelerometer-derived rest–activity indicators and sleep disturbance among older adults. Methods: This analysis included 1,373 person-wave observations from 569 National Health and Aging Trends Study participants. Multilevel models separated within-person and between-person components of the least active five-hour period (L5), coefficient of variation, and behavioral fragmentation. Relative amplitude (RA) was included at the between-person level in the primary model and examined separately in sensitivity analyses. Results: In primary analyses, no rest–activity indicator was associated with sleep disturbance, including when sleep medication use was excluded; within-person estimates were small (95% CI bounds within ±0.031). Weak between-person associations for L5 and RA emerged only in exploratory, model-dependent analyses. Pain, depressive symptoms, chronic disease burden, and educational attainment were associated with sleep disturbance. Conclusion: Rest–activity indicators showed no clear association with self-reported sleep disturbance, and small between-person estimates were model-dependent. Health-related and socioeconomic factors warrant attention in population-based sleep research.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": null,
  "author_total": 2,
  "authors": [
    {
      "name": "Kyungmi Lee"
    },
    {
      "name": "Jennifer B. Levin"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/a0q9nc66g1n2e.bib",
  "cited_by": 0,
  "doi": "10.31234/osf.io/bwe7f_v1",
  "fulltext_url": null,
  "id": "a0q9nc66g1n2e",
  "issns": [],
  "landing_url": "https://osf.io/preprints/psyarxiv/bwe7f_v1/",
  "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": [
    [
      "bepress",
      "Clinical Psychology"
    ],
    [
      "bepress",
      "Sleep-wake Disorders"
    ],
    [
      "bepress",
      "Social and Behavioral Sciences"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://osf.io/bwe7f/download",
  "pmcid": null,
  "pmid": null,
  "published": "2026-11-05",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/a0q9nc66g1n2e.ris",
  "sources": [
    {
      "first_seen": "2026-11-06T12:21:46Z",
      "native_id": "bwe7f",
      "source": "osf",
      "url": "https://osf.io/preprints/psyarxiv/bwe7f_v1/"
    }
  ],
  "subjects": [
    {
      "field": "medicine",
      "origin": "bepress:Clinical Psychology",
      "subfield": "psychiatry"
    }
  ],
  "title": "Accelerometer-Derived Rest–Activity Rhythms and Sleep Disturbance in Older Adults: A Three-Wave Longitudinal Study",
  "title_text": "Accelerometer-Derived Rest–Activity Rhythms and Sleep Disturbance in Older Adults: A Three-Wave Longitudinal Study",
  "type": "preprint",
  "updated_at": "2026-11-06T12:21:46Z",
  "url": "https://research.draconitic.com/paper/a0q9nc66g1n2e",
  "venue": "PsyArXiv",
  "versions": []
}