Evidence map›Paper›PMID 41686288›Full record

ReviewExperimental brain research2026

The equilibrium point hypothesis revisited: why threshold control does not explain human movement.

Madhur Mangalam, Nick Stergiou

Abstract readReview
In one paragraph

Review in Experimental brain research, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
–field-weighted citation impact
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

4 citing papers in PubMed.

  1. Article
  2. Review
  3. Article
  4. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

2 authors.

Madhur MangalamDepartment of Biomechanics, University of Nebraska at Omaha, Omaha, NE, 68182, USA. mmangalam@unomaha.edu.
Nick StergiouDepartment of Biomechanics, University of Nebraska at Omaha, Omaha, NE, 68182, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The equilibrium point hypothesis (EPH) proposes that movement control arises from shifting referent configurations (λ) that set muscle activation thresholds, with behavior emerging from neuromechanical interactions. Here, we review theoretical, neurophysiological, and computational evidence indicating that, for realistic multi-joint behavior, EPH is under-specified: it does not resolve inverse kinematics/dynamics, impedance regulation, or temporal coordination, and it conflicts with established force-length and force-velocity muscle properties and task-dependent reflex modulation. Perturbation, load, and obstacle-avoidance studies reveal flexible, goal-dependent corrections inconsistent with passive convergence to fixed referent states. Neural data show continuous preparatory and online control of kinematics and dynamics, contradicting EPH's central premise. We conclude that, despite its historical influence and contributions, EPH lacks the mechanistic adequacy required of a contemporary theory of motor control and should be succeeded by biologically grounded frameworks that integrate neural processes, biomechanics, and task-level function across basic and applied domains.

Indexed as

Models, NeurologicalMuscle, SkeletalPsychomotor PerformanceBiomechanical PhenomenaHumansMovementComputational homunculusMotor controlMuscle mechanicsNeuromechanicsNeuroscienceTheoretical critique

Identifiers

PMID41686288
PMCPMC12904882

What Socratic holds

Textmetadata
LicenceCC BY
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 Socratic graph.