Evidence map›Paper›PMID 32170443›Full record

ArticleEuropean journal of applied physiology2020

Comparison between high- and low-intensity eccentric cycling of equal mechanical work for muscle damage and the repeated bout effect.

Georgios Mavropalias, Tomoko Koeda, Oliver R Barley, Wayne C K Poon, Aiden J Fisher, Anthony J Blazevich, Kazunori Nosaka

Open access · greenAbstract read
PubMed Publisher
In one paragraph

Article in European journal of applied physiology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
3.1field-weighted citation impact, top 8% 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

25 citing papers in PubMed, 34 citations in OpenAlex.

  1. Trial
  2. Trial
  3. Trial
  4. Trial
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Effect of COHeliyon · 2023
    Article
  11. Article
  12. Review
  13. Article
  14. The Effect of Static Compression via Vibration Foam Rolling on Eccentrically Damaged Muscle.International journal of environmental research and public health · 2022
    Article
  15. Article
  16. Article
  17. Article
  18. Acute and Delayed Effects of Time-Matched Very Short "All Out" Efforts in Concentric vs. Eccentric Cycling.International journal of environmental research and public health · 2021
    Article
  19. Article
  20. Article
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 at 2 institutions in 2 countries.

Georgios MavropaliasSchool of Medical and Health Sciences, Edith Cowan University, 270 Joondalup Drive, Joondalup, WA, 6027, Australia. georgios.mavropalias@gmail.com.ORCID http://orcid.org/0000-0001-7753-5693
Tomoko KoedaFaculty of Rehabilitation Sciences, Nagoya Gakuin University, Nagoya, Japan.
Oliver R BarleySchool of Medical and Health Sciences, Edith Cowan University, 270 Joondalup Drive, Joondalup, WA, 6027, Australia.
Wayne C K PoonSchool of Medical and Health Sciences, Edith Cowan University, 270 Joondalup Drive, Joondalup, WA, 6027, Australia.
Aiden J FisherSchool of Science, Edith Cowan University, Joondalup, Australia.
Anthony J BlazevichSchool of Medical and Health Sciences, Edith Cowan University, 270 Joondalup Drive, Joondalup, WA, 6027, Australia.
Kazunori NosakaSchool of Medical and Health Sciences, Edith Cowan University, 270 Joondalup Drive, Joondalup, WA, 6027, Australia.
Edith Cowan University · AUNagoya Gakuin University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeWe compared high- and low-intensity eccentric cycling (ECC) with the same mechanical work for changes in muscle function and muscle soreness, and examined the changes after subsequent high-intensity ECC.

methodsTwenty men performed either high-intensity ECC (1 min × 5 at 20% of peak power output: PPO) for two bouts separated by 2 weeks (H-H, n = 11), or low-intensity (4 min × 5 at 5% PPO) for the first and high-intensity ECC for the second bout (L-H, n = 9). Changes in indirect muscle damage markers were compared between groups and bouts.

resultsAt 24 h after the first bout, both groups showed similar decreases in maximal isometric (70° knee angle,  - 10.6 ± 11.8%) and isokinetic ( - 11.0 ± 8.2%) contraction torque of the knee extensors (KE), squat ( - 7.7 ± 10.4%) and counter-movement jump ( - 5.9 ± 8.4%) heights (p < 0.05). Changes in KE torque and jump height were smaller after the second than the first bout for both the groups (p < 0.05). Increases in plasma creatine kinase activity were small, and no significant changes in vastus lateralis or intermedius thickness nor ultrasound echo-intensity were observed. KE soreness with palpation was greater (p < 0.01) in H-H (peak: 4.2 ± 1.0) than L-H (1.4 ± 0.6) after the first bout, but greater in L-H (3.6 ± 0.9) than H-H (1.5 ± 0.5) after the second bout. This was also found for muscle soreness with squat, KE stretch and gluteal palpation.

conclusionThe high- and low-intensity ECC with matched mechanical work induced similar decreases in muscle function, but DOMS was greater after high-intensity ECC, which may be due to greater extracellular matrix damage and inflammation.

Indexed as

ExerciseMuscle ContractionMuscle StrengthAdultBicyclingCreatine KinaseHumansMaleMechanical PhenomenaMotor ActivityMuscle, SkeletalMyalgiaYoung AdultCreatine KinaseCounter-movement jumpCreatine kinase activityDelayed-onset muscle sorenessLengthening muscle actionMaximal voluntary isometric torqueRate of force developmentSquat jump

Identifiers

PMID32170443
OpenAlexW3011018821

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.