Evidence map›Paper›PMID 31468174›Full record

ReviewEuropean journal of applied physiology2019

What causes increased passive stiffness of plantarflexor muscle-tendon unit in children with spastic cerebral palsy?

Clément Boulard, Raphaël Gross, Vincent Gautheron, Thomas Lapole

Abstract readReview
PubMed Publisher
In one paragraph

Review in European journal of applied physiology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
1.6field-weighted citation impact, top 17% 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

11 citing papers in PubMed, 21 citations in OpenAlex.

  1. Trial
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  4. Impact of Wrist and Finger Extension on Passive Joint Torques and Their Association with Forearm Flexor Muscle Structure in Hemiparetic Cerebral Palsy: Early Findings.Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference · 2025
    Article
  5. Observational
  6. Article
  7. Article
  8. Article
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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

4 authors at 2 institutions in 1 country.

Clément BoulardUniv Lyon, UJM Saint-Etienne, Laboratoire Interuniversitaire de biologie de la motricité, EA7424, 42023, Saint-Etienne, France. clement.boulard@univ-st-etienne.fr.ORCID http://orcid.org/0000-0002-7782-5647
Raphaël GrossNantes Université, CHU Nantes, Laboratoire Motricité-Interactions-Performance, MIP, EA4334, 44000, Nantes, France.
Vincent GautheronUniv Lyon, UJM Saint-Etienne, Laboratoire Interuniversitaire de biologie de la motricité, EA7424, 42023, Saint-Etienne, France.
Thomas LapoleUniv Lyon, UJM Saint-Etienne, Laboratoire Interuniversitaire de biologie de la motricité, EA7424, 42023, Saint-Etienne, France.
Université Claude Bernard Lyon 1 · FRNantes Université · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe term 'stiffness' is commonly used in the literature to refer to various components of 'hyperresistance' by which spastic muscles oppose to their passive lengthening, especially in children with cerebral palsy (CP). Originally, stiffness consists of mechanical resistance to passive movement in the absence of any muscle activation. Increased muscle stiffness in CP therefore refers to alterations to the mechanical properties of the tissue. It is closely linked to muscle shortening, yet the two phenomena are not equivalent. Both increased stiffness and shortening are present early in childhood in the plantarflexor muscles of children with spastic CP.

methodsThis narrative review provides a comprehensive overview of the literature on passive stiffness of the plantarflexor muscles measured at the joint, muscles, fascicles, and fiber level in children with CP. Articles were searched through the Pub'Med database using the keywords "cerebral palsy" AND "stiffness".

resultThe ambiguous use of the term 'stiffness' has been supported by discrepancies in available results, influenced by heterogeneity in materials, methodologies and characteristics of the participants among studies. Increased stiffness at the joint and muscle belly level may be explained by altered structural properties at the microscopic level.

conclusionThis thorough investigation of the literature suggests that the pathophysiology and the time course of the development of stiffness and contracture remain to be elucidated. A consideration of both morphological and mechanical measurements in children with CP is important when describing the alterations in their plantarflexors.

Indexed as

AdolescentAnkleCerebral PalsyChildElastic ModulusHumansMuscle, SkeletalMuscle SpasticityTendonsCerebral palsyChildrenContracturePlantarflexorsStiffness

Identifiers

PMID31468174
OpenAlexW2970153914

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.