Reduced muscle power is associated with slower walking velocity and falls in people with Parkinson's disease.
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DOI: 10.1016/j.parkreldis.2009.12.011
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.
Allen NE, Sherrington C, Canning CG, Fung VS. Reduced muscle power is associated with slower walking velocity and falls in people with Parkinson's disease. Parkinsonism Relat Disord. 2010;16(4):261–4. DOI 10.1016/j.parkreldis.2009.12.011
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
- access status: full_main_text_available
STR-31-05
STR-31-01
STR-31-02
STR-31-03
STR-31-04
Limitations: Only current scoped checks; archived captures not authenticated against live originals.
Parkinson’s disease strength
- current access: full_main_text_available
- primary version: Archived licensed publisher HTML/text capture; all three tables
Parkinson’s disease strength component — Complete Allen machine/walk protocol and shared cohort
The archived publisher text confirms 40 independent ambulators, testing about one hour after usual medication, and unilateral Keiser A 420 1 RM reached in about ten increasing lifts. After 30 minutes’ rest, eight ascending loads from 20% to 90% 1 RM were tested. Peak power across loads and maximum power at 30% were distinct, with bilateral means analyzed. Walking was timed over the middle 10 m of a 14 m walkway. Fuller positioning and repetition details were referred to Allen 2009. Results explicitly identifies the same participants as that earlier case-control paper.
Source locator: https://doi.org/10.1016/j.parkreldis.2009.12.011; Library original archived audit evidence Methods 2.1–2.3; Results first paragraph
Limitations: AI-assisted comparison with archived licensed capture; transcription accuracy was not independently verified against the live publisher original.
Parkinson’s disease strength component — All reported gait model estimates and adjustment structure
Table 3 gives 30%-load power R²=.33 for comfortable and .54 for maximal walking speed, versus strength R²=.26 and .43. UPDRS-adjusted power slopes are .0007 [.0003, .0011], p=.001 and .0016 [.0011, .0021], p<.001; whole-model R²=.56 and .66. Strength remains associated in separate models. UPDRS, age and height adjustments were separate. The 30% measure was selected after its stronger association was observed. No isolated increment from adding power to strength was reported.
Source locator: https://doi.org/10.1016/j.parkreldis.2009.12.011; Library original archived audit evidence Statistical Analyses; Table 3 and Results 3.1
Limitations: AI-assisted comparison with archived licensed capture; transcription accuracy was not independently verified against the live publisher original.
Parkinson’s disease strength component — Recalled recurrent-fall counts, median splits and continuous adjusted models
Table 2 gives seven single fallers and ten recurrent fallers in the past 12 months. Sample medians were 392.1 W peak power, 289.1 W at 30% 1 RM and 840.5 N strength. Each univariate low-power contrast had OR 6.0 [1.1, 33.3], p=.04; strength OR 3.1 [.7, 14.1], p=.15. Adjusted models used continuous power, with rounded OR 1.0 [.99, 1.0], p=.09 with UPDRS and p=.047 with age. The report correctly avoids rescaling those rounded coefficients or interpreting recalled-faller odds as future risk.
Source locator: https://doi.org/10.1016/j.parkreldis.2009.12.011; Library original archived audit evidence Table 2; Statistical Analyses and Results 3.2
Limitations: AI-assisted comparison with archived licensed capture; transcription accuracy was not independently verified against the live publisher original.
Reports citing this source
- Strength muscle power and rapid force production assessment in Parkinson’s disease · reference 31 · 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.
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