Correlation Between Maximal Eccentric and Isometric Multi-Joint Lower-Extremity Strength and Vertical Jumping Performance in Young Adults.

Joonsun Park, Cassidy Weeks, Brennan J Thompson, Talin Louder

Abstract read

In one paragraph

Article in Muscles (Basel, Switzerland), 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it

0cells of the map it votes in

1citing papers in PubMed

–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

1 citing paper in PubMed.

Effects of grip variation on biceps brachii and brachioradialis electromyographic activity during concentric and eccentric phases of the barbell curl exercise.BMC sports science, medicine & rehabilitation · 2026
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

4 authors.

Joonsun ParkKinesiology and Health Science Department, Utah State University, Logan, UT 84322, USA.ORCID 0009-0004-4742-9637

Cassidy WeeksSchool of Medicine, University of Colorado Denver-Anschutz Medical Campus, 13121 East 17th Ave., Aurora, CO 80045, USA.ORCID 0009-0005-6455-1295

Brennan J ThompsonKinesiology and Health Science Department, Utah State University, Logan, UT 84322, USA.ORCID 0000-0003-3534-8755

Talin LouderKinesiology and Health Science Department, Utah State University, Logan, UT 84322, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Maximal eccentric (MES) and isometric (MIS) muscle strength may enhance vertical jump performance by facilitating preloading and reducing energy loss during the eccentric (ECC) phase of the stretch-shortening cycle (SSC). However, the contributions of ECC and isometric (ISO) strength to the countermovement (CMJ) and depth jump (DJ) remain unclear due to variability in assessment methods (e.g., dynamometry, isometric mid-thigh pull) and the limited range of metrics examined in prior research. The aim of this study was to assess correlations between multi-joint lower extremity MES and MIS, obtained using a seated multi-joint isokinetic dynamometer, and 13 vertical ground reaction force (GRF) measures derived from the performance of three maximal effort DJs and CMJs. Twenty-five healthy young adults participated in this study (age = 21.9 ± 2.9 years). Pearson

Indexed as

countermovement jumpdepth jumpdynamometryground reaction forceisokineticstretch shortening cycle

Identifiers

PMID40757523

DOI10.3390/muscles3040034

PMCPMC12121317

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.