Evidence map›Paper›PMID 15578202›Full record

Trial reportEuropean journal of applied physiology2005

Differences in the force/endurance relationship between young and older men.

Ilenia Bazzucchi, Marco Marchetti, Alessandro Rosponi, Luigi Fattorini, Vincenzo Castellano, Paola Sbriccoli, Francesco Felici

Abstract readClinical TrialComparative StudyControlled Clinical Trial
PubMed Publisher
In one paragraph

Trial report in European journal of applied physiology, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 4 pooled it
–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

15 citing papers in PubMed, 4 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Systematic review and meta-analysis of skeletal muscle fatigue in old age.Medicine and science in sports and exercise · 2011
    Pooled it
  4. Pooled it
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  10. Does the early phase of aging affect the morphology of biceps brachii and torque and total work of elbow flexors in healthy volunteers?Brazilian journal of medical and biological research = Revista brasileira de pesquisas medicas e biologica · 2023
    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

7 authors.

Ilenia BazzucchiDepartment of Human Movement and Sport Sciences, Istituto Universitario di Scienze Motorie, 00194 Rome, Italy.
Marco Marchetti
Alessandro Rosponi
Luigi Fattorini
Vincenzo Castellano
Paola Sbriccoli
Francesco Felici

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The aim of the present study was to ascertain if in six young (23-35 years) and in six older (70-72 years) healthy men matched for comparable absolute and specific maximal force of the dominant elbow flexors, differences in isometric endurance, myoelectrical fatigability, and shortening velocity are still recognizable. To assess the specific force, the muscle cross sectional area (CSA) was determined from magnetic resonance imaging (MRI) scans. The performance of the elbow flexors was studied by assessing the isometric endurance times (ET) at different percentages of maximal isometric contraction (MVC), the average muscle fibre conduction velocity of action potentials (CV), and the median frequency (MDF) of the surface electromyogram (sEMG) of the biceps brachii. Finally, the torque-velocity curve was assessed by means of maximal isokinetic contractions at six fixed angular velocities. All data were expressed as the mean (SD). The results showed that: (1) the ET was longer in the older subjects at the highest levels of isometric contraction, independently from the absolute force; (2) the modifications of muscle fibre CV during isometric effort progressed less rapidly in the older than the younger groups, as did those of MDF; and (3) at the same angular velocity, the older subjects exerted less absolute force than the younger subjects. These results suggest an impairment of the neuromuscular system of older men, which is less powerful and less fatigable than that of young men.

Indexed as

AdultAgedAge FactorsAgingAnatomy, Cross-SectionalElbowHumansMagnetic Resonance ImagingMaleMuscle ContractionMuscle, SkeletalNeural ConductionPhysical EnduranceStatistics as TopicStress, Mechanical

Identifiers

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.