Evidence map›Paper›PMID 35278221›Full record

ArticleThe Journal of physiology2022

Ageing and exercise-induced motor unit remodelling.

Eleanor J Jones, Shin-Yi Chiou, Philip J Atherton, Bethan E Phillips, Mathew Piasecki

Open access · hybridAbstract read
In one paragraph

Article in The Journal of physiology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed, 1 pooled it
3.6field-weighted citation impact, top 6% 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

29 citing papers in PubMed, 1 synthesis or guideline pooled it, 44 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Article
  4. Article
  5. Review
  6. Frailty and COPD: a bidirectional relationship in the context of systemic and accelerated ageing.European respiratory review : an official journal of the European Respiratory Society · 2026
    Review
  7. Article
  8. CD21Frontiers in aging · 2026
    Article
  9. Article
  10. Article
  11. Review
  12. Review
  13. Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. Skeletal muscle dysfunction with advancing age.Clinical science (London, England : 1979) · 2024
    Review
  19. Combined regenerative rehabilitation improves recovery following volumetric muscle loss injury in a rat model.Journal of biomedical materials research. Part B, Applied biomaterials · 2024
    Article
  20. Review
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

5 authors at 2 institutions in 1 country.

Eleanor J JonesCentre of Metabolism, Ageing & Physiology (COMAP), MRC-Versus Arthritis Centre of Excellence for Musculoskeletal Ageing Research, Nottingham NIHR Biomedical Research Centre, School of Medicine, University of Nottingham, Nottingham, UK.
Shin-Yi ChiouSchool of Sport, Exercise, and Rehabilitation Sciences, MRC-Versus Arthritis Centre for Musculoskeletal Ageing Research, Centre for Human Brain Health, University of Birmingham, Birmingham, UK.ORCID 0000-0002-4200-5243
Philip J AthertonCentre of Metabolism, Ageing & Physiology (COMAP), MRC-Versus Arthritis Centre of Excellence for Musculoskeletal Ageing Research, Nottingham NIHR Biomedical Research Centre, School of Medicine, University of Nottingham, Nottingham, UK.ORCID 0000-0002-7286-046X
Bethan E PhillipsCentre of Metabolism, Ageing & Physiology (COMAP), MRC-Versus Arthritis Centre of Excellence for Musculoskeletal Ageing Research, Nottingham NIHR Biomedical Research Centre, School of Medicine, University of Nottingham, Nottingham, UK.
Mathew PiaseckiCentre of Metabolism, Ageing & Physiology (COMAP), MRC-Versus Arthritis Centre of Excellence for Musculoskeletal Ageing Research, Nottingham NIHR Biomedical Research Centre, School of Medicine, University of Nottingham, Nottingham, UK.ORCID 0000-0002-7804-4631
University of Nottingham · GBArthritis UK · GB

Funding

Medical Research Council MR/P021220/1
6 · The paper itself

Abstract

A motor unit (MU) comprises the neuron cell body, its corresponding axon and each of the muscle fibres it innervates. Many studies highlight age-related reductions in the number of MUs, yet the ability of a MU to undergo remodelling and to expand to rescue denervated muscle fibres is also a defining feature of MU plasticity. Remodelling of MUs involves two coordinated processes: (i) axonal sprouting and new branching growth from adjacent surviving neurons, and (ii) the formation of key structures around the neuromuscular junction to resume muscle-nerve communication. These processes rely on neurotrophins and coordinated signalling in muscle-nerve interactions. To date, several neurotrophins have attracted focus in animal models, including brain-derived neurotrophic factor and insulin-like growth factors I and II. Exercise in older age has demonstrated benefits in multiple physiological systems including skeletal muscle, yet evidence suggests this may also extend to peripheral MU remodelling. There is, however, a lack of research in humans due to methodological limitations which are easily surmountable in animal models. To improve mechanistic insight of the effects of exercise on MU remodelling with advancing age, future research should focus on combining methodological approaches to explore the in vivo physiological function of the MU alongside alterations of the localised molecular environment.

Indexed as

AgingMotor NeuronsAnimalsMuscle Fibers, SkeletalMuscle, SkeletalNerve Growth FactorsNerve Growth Factorsageingaxonal sproutingexercisemotor unitneuromuscular junction

Identifiers

PMID35278221
PMCPMC9314090
OpenAlexW4220706099

What OpenQuestion 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 OpenQuestion graph.