ArticleEuropean journal of applied physiology2025
Eccentric training effects on hamstring muscles in oral contraceptive users and naturally menstruating women.
Article in European journal of applied physiology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper, 1 of them a synthesis that pooled 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.
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
1 citing paper in PubMed, 1 synthesis or guideline pooled it.
- Beyond birth control: how oral contraceptives impact skeletal muscle health: a systematic review and meta-analysis.Journal of applied physiology (Bethesda, Md. : 1985) · 2026Pooled it
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
9 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeThis study evaluated the effects of eccentric resistance training on hamstring muscles properties in women using oral contraceptives (OC) and naturally menstruating women.
methodsBefore and after the training intervention, we measured maximal isometric and eccentric moment of the knee flexor muscles, thickness and shear wave velocity (SWV) of the biceps femoris long head (BFlh), semitendinosus (ST) and semimembranosus (SM) muscles, and BFlh fascicle length using ultrasonography and dynamometry.
resultsThe 12-week training intervention resulted in a modest but statistically significant increase in resting BFlh fascicle length (~2% on average, p = 0.005) across both groups, with no observed effect of OC use on any variable. The muscle strength and thickness increased comparably in both groups, with an average increase of ~20% in isometric knee flexor moment and 14% in eccentric knee flexor moment (p < 0.001 for both tests). ST muscle thickness increased by ~4% on average (p = 0.016), while no main effect of training was observed for SM and BFlh thickness. The shear modulus of the SM muscle decreased by 9% (p = 0.021) for the combined groups. However, it remained unchanged in the BFlh and ST muscles, and OC use did not influence these measurements either.
conclusionThese findings suggest that eccentric training induces similar adaptations in women regardless of OC use. Furthermore, fascicle lengthening was not attributable to changes in muscle shear modulus under the present conditions.
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.