Evidence map›Paper›PMID 19263073›Full record

ArticleEuropean journal of applied physiology2009

Muscle damage responses of the elbow flexors to four maximal eccentric exercise bouts performed every 4 weeks.

Trevor C Chen, Hsin-Lian Chen, Ming-Ju Lin, Chang-Jun Wu, Kazunori Nosaka

Registry-linked trialAbstract read
PubMed Publisher
In one paragraph

Article in European journal of applied physiology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02918682 (The Effects of a Multi-component Intervention on the Functional Capacity, Upper and Lower-body Muscle Strength, Balance and Gait in Frail Community-dwelling Older People), which is not on this map. Cited by 35 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed, 1 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.

NCT02918682 naunknown statusnot on this mapstarted 2019, after this paper: background citation

The Effects of a Multi-component Intervention on the Functional Capacity, Upper and Lower-body Muscle Strength, Balance and Gait in Frail Community-dwelling Older People: a Randomized Clinical Trial

TypeinterventionalSponsorUniversity of Sao PauloRan2019 to 2022Enrolled30ConditionsFrail Elderly, Exercise Therapy, Physical Therapy TechniquesArmsExercise - FIRST PHASE, Exercise - SECOND PHASE, Exercise - FOURTH PHASE, Exercise - THIRD PHASE
3 · Its place in the literature

Who cites it

35 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Trial
  3. Effect of Daily OralNutrients · 2021
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  5. Review
  6. Article
  7. Article
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  9. Article
  10. Adaptability to eccentric exercise training is diminished with age in female mice.Journal of applied physiology (Bethesda, Md. : 1985) · 2023
    Article
  11. Influence of Cluster Sets on Mechanical and Perceptual Variables in Adolescent Athletes.International journal of environmental research and public health · 2023
    Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Review
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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.

Trevor C ChenDepartment of Physical Education, National Chiayi University, 85 Wenlong Village, Minsyong Township, Chiayi County, 62103, Taiwan. trevorchen@mail.ncyu.edu.tw
Hsin-Lian Chen
Ming-Ju Lin
Chang-Jun Wu
Kazunori Nosaka

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Since little is known about the repeated bout effect of more than two eccentric exercise bouts, this study compared muscle damage responses among four exercise bouts. Fifteen young (21.8 +/- 1.9 years) men performed four bouts of 30 maximal isokinetic eccentric contractions of the elbow flexors every 4 weeks. Maximal voluntary elbow flexion isometric and concentric strength, range of motion at the elbow joint (ROM), upper arm circumference, blood markers of muscle damage, and muscle soreness were measured before and up to 120 h following each bout. Changes in all measures following the second to fourth bouts were significantly (P < 0.05) smaller than those after the first bout. The decreases in strength and ROM immediately after the fourth bout were significantly (P < 0.05) smaller than other bouts. It is concluded that the first bout confers the greatest adaptation, but further adaptation is induced when the exercise is repeated more than three times.

Indexed as

ElbowElbow JointExerciseHumansMaleMuscle ContractionMuscle FatigueMuscle, SkeletalRange of Motion, ArticularYoung Adult

Identifiers

What OpenQuestion holds

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Read underepoch 390

Registered trials

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.