Evidence map›Paper›PMID 40960470›Full record

Trial reportEuropean journal of sport science2025

Comparison of Architectural and Performance Adaptations of Hip Extension Exercise Under Gravitational or Inertial Loading Conditions: A Randomized Controlled Trial.

Rodrigo Martín-San Agustín, Lorenzo Castillo-Ballesta, Rubén Esbri-Navarro, Javier Herraiz- Garvín

Abstract readRandomized Controlled TrialComparative Study
In one paragraph

Trial report in European journal of sport science, 2025. 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.

  1. Trial
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.

Rodrigo Martín-San AgustínDepartment of Physiotherapy, Clinimetry and Technological Development in Therapeutic Exercise Research Group (CLIDET), University of Valencia, Valencia, Spain.ORCID https://orcid.org/0000-0001-8201-0189
Lorenzo Castillo-BallestaDepartment of Physiotherapy, Clinimetry and Technological Development in Therapeutic Exercise Research Group (CLIDET), University of Valencia, Valencia, Spain.
Rubén Esbri-NavarroDepartment of Physiotherapy, Clinimetry and Technological Development in Therapeutic Exercise Research Group (CLIDET), University of Valencia, Valencia, Spain.
Javier Herraiz- GarvínDepartment of Physiotherapy, Clinimetry and Technological Development in Therapeutic Exercise Research Group (CLIDET), University of Valencia, Valencia, Spain.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Increasing the length of the biceps femoris long head (BFlh) fascicle is one of the objectives of hamstring injury prevention programs. This study aimed to investigate training-induced adaptations in BFlh architecture and performance measures after a six-week resistance training program with gravitational or inertial 45° hip extension (HE) exercise and a subsequent detraining period. Thirty-two resistance-trained males were assigned to a group doing a HE training program with gravitational loading (HE-G), HE by inertial loading (HE-I), or to a control group (CG). BFlh architecture, knee flexion and hip extension strength, jumping performance by means of the countermovement (CMJ) and squat jump (SJ) tests, and soreness before and after each training session were evaluated. HE-I participants modified the initial length of the BHlh fascicle (9.86 cm), increasing it by 1.64 cm at the end of the intervention and remaining 1.48 cm longer than baseline after the detraining period. Both HE modalities improved hip extensor strength (51.2 N for HE-G and 65.0 N) and only HE-I improved knee flexor strength (69.9 N). Soreness for HE-I exercise showed lower values than gravity-loaded performance, with at least one point difference across sessions, and more than two in some of the final sessions. This study provides evidence suggesting that HE performed with inertial loading is an effective exercise for lengthening the BFlh fascicle and promoting improvements in knee flexion strength and SJ performance, aspects not modifiable by the gravitational modality.

Indexed as

Adaptation, PhysiologicalGravitationHamstring MusclesHipResistance TrainingAdultHumansMaleMuscle StrengthMyalgiaYoung Adulteccentric trainingfascicle lengthiso‐inertialmuscle architecturemuscle physiologyultrasound

Identifiers

PMID40960470
PMCPMC12442444

What OpenQuestion holds

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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.