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SRC-6c4515063bac Saarinen EK 2025

Evidence source and scope

Hand muscle strength in Parkinson’s disease: A Sarcopenic epiphenomenon or a meaningful biomarker?

This note indexes a cited or audit-added source. It may be an original study, review, guideline, form or methods reference. Treat the specific design and the evidence below as authoritative; a source note is not automatically a primary study.

DOI: 10.1016/j.parkreldis.2025.108021

Bibliographic record from the original reports

Access labels embedded in these original reference strings are historical. Current access and exact checked components are stated separately below.

Saarinen EK, Kuusimäki T, Niemi K, Noponen T, Jaakkola E, Myller E, et al. Hand muscle strength in Parkinson's disease: A Sarcopenic epiphenomenon or a meaningful biomarker? Parkinsonism Relat Disord. 2025;140:108021. DOI 10.1016/j.parkreldis.2025.108021

Conditions: COND-PD Parkinson’s disease

Scoped audit evidence

These are source- and component-level audit summaries as of 3 October 2026. Access and comparison scope can differ by report; none certifies every result or the underlying raw data.

Parkinson’s disease — strength

STR-12-02

STR-12-01

Limitations: Only current scoped checks; archived captures not authenticated against live originals.

Parkinson’s disease strength

Parkinson’s disease strength component — Saarinen longitudinal samples, protocol and change associations

Final PDF confirms 147 PD/35 controls, 106 initially unmedicated, 84 clinical and 40 imaging follow-ups, stated intervals and Jamar protocol. Tables 2–3 match grip means; Results matches adjusted motor-change p=.029 and DAT-change p>.62.

Source locator: Final publisher PDF in UTU repository, Methods 2.1/2.3/2.7, Results 3.2–3.3, Tables 2–3

Limitations: AI-assisted source comparison; no raw-data verification.

Parkinson’s disease strength component — Saarinen group means vs change association and follow-up selection

Tables 2–3 show improved mean motor scores despite increasing LEDD and worsening PDQ 8. Follow-up was voluntary and incomplete. The report correctly separates group mean improvement from individual change associations.

Source locator: Final PDF Methods 2.1, Tables 2–3

Limitations: AI-assisted source comparison; no raw-data verification.

Reports citing this source

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