ArticleBMC musculoskeletal disorders2026
Partial bodyweight-supported squats elicit eccentric contraction of the thigh muscles.
Article in BMC musculoskeletal disorders, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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.
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.
Who cites it
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors.
Funding
Abstract
purposeThe study aimed to investigate how different levels of supporting forces during the squat exercise at a self-selected speed, along with different knee angles, affect fascicle length, pennation angle, and muscle activation for healthy young individuals.
methodsTwelve healthy subjects participated in the study to measure fascicle length and pennation angle of the vastus lateralis (VL) at 0°, 60°, and 80° knee flexion. Leg muscle activities and the ground reaction force (GRF) were measured during squats using a squat aid machine with three supporting force levels.
resultsVL fascicle length and pennation angle at 0° knee flexion were significantly lower than at 60° and 80° flexion across all force levels (p < 0.05). Moreover, the leg muscles' mean maximum electromyography and the three-direction normalized GRFs measured on both the squat aid machine and the subjects' feet showed no significant variations across supporting forces.
conclusionOur findings indicate that squat exercise has the potential to induce eccentric contraction by increasing fascicle length and muscle activation and decreasing pennation angle, regardless of the supporting force level. Therefore, a squat aid machine for squats is recommended as a safe and effective approach to enhance muscle force through eccentric contractions.
Indexed as
Identifiers
What OpenQuestion holds
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.