Reliability of the isokinetic trunk extensor test, Biering-Sørensen test, and Astrand bicycle test: assessment of intraclass correlation coefficient and critical difference in patients with chronic low back pain and healthy individuals.
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DOI: 10.1097/00007632-200104010-00017
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.
Keller A, Hellesnes J, Brox JI. Reliability of the isokinetic trunk extensor test, Biering-Sørensen test, and Astrand bicycle test: assessment of intraclass correlation coefficient and critical difference in patients with chronic low back pain and healthy individuals. Spine. 2001;26(7):771-7. DOI 10.1097/00007632-200104010-00017 Source examined: Original abstract or metadata only; no original full-text numerical table validation.
Conditions: COND-LBP Low back pain
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.
Low back pain
- current evidence level: abstract
Source locator: Original abstract
Limitations: Original critical-difference derivation not inspected; no implementation threshold endorsed.
Low back pain
- verification level: abstract
31 chronic-LBP participants; three sessions 5–10 days apart; patient ICC .93–.98, Sørensen critical difference 57%, strength differences 28–63% match.
Source locator: Original abstract
Limitations: Original critical-difference derivation not inspected; no implementation threshold endorsed.
Reports citing this source
- Strength power and rapid force assessment in low back pain · reference 13 · original reference
Update record
- 2026-10-03: Created from the supplied reports and final scoped audit. New evidence should be appended with source version, access date, exact locator and affected report links.
Updating the wiki · Evidence and status guide