Evidence map›Paper›PMID 28878131›Full record

ArticleJCI insight2017

Physiological adaptations to resistance exercise as a function of age.

Bethan E Phillips, John P Williams, Paul L Greenhaff, Kenneth Smith, Philip J Atherton

Open access · goldAbstract read
In one paragraph

Article in JCI insight, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed, 4 pooled it
4.2field-weighted citation impact, top 5% 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

42 citing papers in PubMed, 4 syntheses or guidelines pooled it, 91 citations in OpenAlex.

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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

5 authors at 1 institution in 1 country.

Bethan E PhillipsSchool of Medicine and.
John P WilliamsSchool of Medicine and.
Paul L GreenhaffSchool of Life Sciences, Medical Research Council Arthritis Research UK Centre for Musculoskeletal Ageing Research, University of Nottingham, Nottingham and Derby, United Kingdom.
Kenneth SmithSchool of Medicine and.
Philip J AthertonSchool of Medicine and.
Versus Arthritis · GB

Funding

Biotechnology and Biological Sciences Research Council BB/C516779/1Medical Research Council MR/K00414X/1Medical Research Council MR/P021220/1
6 · The paper itself

Abstract

backgroundThe impact of resistance exercise training (RE-T) across the life span is poorly defined.

methodsTo resolve this, we recruited three distinct age cohorts of young (18-28 years; n = 11), middle-aged (45-55 years; n = 20), and older (nonsarcopenic; 65-75 years; n = 17) individuals to a cross-sectional intervention study. All subjects participated in 20 weeks of fully supervised whole-body progressive RE-T, undergoing assessment of body composition, muscle and vascular function, and metabolic health biomarkers before and after RE-T. Individuals also received stable isotope tracer infusions to ascertain muscle protein synthesis (MPS).

resultsThere was an age-related increase in adiposity, but only young and middle-age groups demonstrated reductions following RE-T. Increases in blood pressure with age were attenuated by RE-T in middle-aged, but not older, individuals, while age-related increases in leg vascular conductance were unaffected by RE-T. The index of insulin sensitivity was reduced by RE-T in older age. Despite being matched at baseline, only younger individuals increased muscle mass in response to RE-T, and there existed a negative correlation between age and muscle growth; in contrast, increases in mechanical quality were preserved across ages. Acute increases in MPS (upon feeding plus acute RE-T) were enhanced only in younger individuals, perhaps explaining greater hypertrophy.

conclusionOur data indicate that RE-T offsets some, but not all, negative characteristics of ageing - some of which are apparent in midlife.

fundingBiotechnology and Biological Sciences Research Council (BB/C516779/1).

Indexed as

Adaptation, PhysiologicalAge FactorsResistance TrainingAdiposityAdolescentAdultAgedBody CompositionBone DensityCohort StudiesFemaleHumansHypertrophyInsulin ResistanceIntra-Abdominal FatMaleMuscle ProteinsMetabolismMuscle Biology

Identifiers

PMID28878131
PMCPMC5621901
OpenAlexW2751693540

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.