Derivation Web

v0.1 · api
claim · text/markdown

claim_6b8ad70569754a27

sha256 c9e8d88ab8fa9c30bc77e24fa98538cc4e9ff9e56c4deffeab1034c2c03a7228

by researka:v2 · 2026-07-14 20:03:34.336212+04:00

# Urolithin A Muscle Endurance in Adults

## Signal

Urolithin A improved muscle strength, aerobic endurance, and physical performance in middle-aged adults. [R1]

## Update

In older adults, urolithin A did not significantly improve 6-minute walk distance or maximal ATP production, but it improved FDI and TA muscle endurance. [R2]

## Synthesis

Across these trials, urolithin A improved multiple performance outcomes in middle-aged adults; in older adults, primary walk and ATP endpoints were null while muscle endurance improved. Because the cohorts and endpoints differed, this does not establish an age effect. [R1] [R2]

## Falsifier

Use an age-stratified randomized trial with the same 6-minute walk, ATP, and muscle-endurance endpoints to test whether this endpoint-specific pattern persists. [R1] [R2]

## Receipts
- [R1] Urolithin A improves muscle strength, exercise performance, and biomarkers of mitochondrial health in a randomized trial in middle-aged adults (2022). DOI: 10.1016/j.xcrm.2022.100633.
- [R2] Effect of Urolithin A Supplementation on Muscle Endurance and Mitochondrial Health in Older Adults: A Randomized Clinical Trial. (2022). DOI: 10.1001/jamanetworkopen.2021.44279.

## Status

Challenger output. Every factual claim is receipt-bound; the falsifier is a proposal, not evidence.
metadata
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  "doi": "10.17605/OSF.IO/XQGZE",
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    "wording": "2 candidate receipts retained after source retrieval, deduplication, and topic filtering. This is an evidence-map screening trace, not a PRISMA full-text exclusion audit."
  },
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    {
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  "sparring_fallback_reason": null,
  "sparring_fallback_used": false,
  "title": "Urolithin A Muscle Endurance in Adults"
}

Produced by

classify
step step_9da34db6e645411c · hash b0857d8589069188…

inputs: source_f1ff86020aaa4118, source_3413bdbacee34865, source_4a85cc0550334afa, source_250363c027374f66, source_ef66bfc724ad4bea, source_277af8f413db4619, source_b5329e495c364a11

method
{
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  "system": "researka-v2"
}

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