Evidence map›Paper›PMID 33388906›Full record

ArticleExperimental brain research2021

Position sense at the human forearm over a range of elbow angles.

Benjamin Chen, Trevor Allen, Uwe Proske

Abstract read
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In one paragraph

Article in Experimental brain research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
2.4field-weighted citation impact, top 12% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

13 citing papers in PubMed, 23 citations in OpenAlex.

  1. Article
  2. Measuring position sense.Experimental physiology · 2025
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors at 1 institution in 1 country.

Benjamin ChenDepartment of Physiology, Monash University, Clayton, Vic, 3800, Australia.
Trevor AllenAccident Research Centre, Monash University, Clayton, Vic, 3800, Australia.ORCID http://orcid.org/0000-0002-3911-7914
Uwe ProskeDepartment of Physiology, Monash University, Clayton, Vic, 3800, Australia. uwe.proske@monash.edu.
Monash University · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Ten adult participants carried out two experiments on position sense at the forearm, one a two-arm matching task, the other a one-arm pointing task. For matching, both forearms were strapped to paddles which moved in the vertical plane between 0° and 90°. At the start of each trial, the arms were conditioned with a contraction sequence to control for the thixotropic property of muscle and muscle spindles. In the matching task, the blindfolded participant moved their indicator arm from 45° into flexion or extension to match the position of the reference arm placed at one of five test angles, between 5° and 85°. In the pointing task, only the reference arm was strapped to a paddle and conditioned. Participants indicated the position of the arm, hidden by a screen, by moving a pointer paddle or choosing one of a series of trajectory lines drawn on the screen. In matching, where test angles were in the direction of flexion of 45°, errors were small; in the direction of extension larger errors were made, up to 8° into flexion. In pointing trials, except at the most extended position, all errors lay in the direction of extension. It is argued that position sense by matching is concerned with the relative positions of the body and its parts, position sense by pointing gives information about position of the body and limbs in external space.

Indexed as

Elbow JointForearmAdultElbowHumansMuscle, SkeletalProprioceptionBody modelMuscle spindleProprioceptionThixotropy

Identifiers

PMID33388906
OpenAlexW3119072205

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.