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Comparative Adaptations to Different Leg Extension Set-termination Strategies in Trained Men and Women: A Unilateral Within-Participant Study

2026Artigo de investigação Acesso aberto
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datacite.subject.fosCiências Médicas::Ciências da Saúde
dc.contributor.authorVasconcelos, Tiago
dc.contributor.authorAlves, Ana Ruivo
dc.contributor.authorRefalo, Martin R.
dc.contributor.authorLucas, Gabriela Chaves
dc.contributor.authorVasconcelos, Pedro R.
dc.contributor.authorBrito, João Paulo
dc.contributor.authorVilaça-Alves, José
dc.contributor.authorOliveira, Rafael
dc.date.accessioned2026-09-29T09:24:26Z
dc.date.available2026-09-29T09:24:26Z
dc.date.issued2026
dc.description.abstractThe purpose of this study was to compare relative adaptations between two set-termination strategies (momentary muscular failure vs. repetitions in reserve) using a unilateral within-participant design under ecologically realistic resistance-training conditions. Nineteen trained subjects (11 men, eight women; mean age: 22.3 6 3.9 years; body mass: 69.9 6 10.3 kg) completed an 8-week unilateral intervention. Each subject performed leg extensions, with one limb randomly assigned to the FAIL protocol and the contralateral limb to the repetitions-in-reserve (RIR) protocol. Muscle thickness (ultrasound) of the knee extensors and 1-repetition maximum strength were assessed pre- and postintervention and analyzed using Bayesian linear mixed-effect models. Estimated between-protocol differences for hypertrophy were negligible (knee extensors: 20.019 cm [20.094 to 0.054]), as were differences for 1-repetition maximum strength (knee extensors: 0.198 kg [21.87 to 2.6]). Secondary analyses using standardized mean differences also suggested no clear overall advantage for either protocol. These findings suggest that resistance training performed with a 1- to 3-RIR may produce adaptations comparable with training to momentary muscular failure in knee extensors under applied training conditions. Strength and conditioning professionals may therefore consider RIR-based strategies as a practical approach to manage fatigue while maintaining training effectiveness.eng
dc.description.sponsorshipThis work was supported by National Funds by FCT - Foundation for Science and Technology, under the project UID/04045/2025 (https://doi.org/10.54499/UID/04045/2025)
dc.identifier.citationVasconcelos, T., Ruivo, A.R., Refalo, M. C., Chaves Lucas, G., Vasconcelos, P. R., Brito, J. P., Vilaça-Alves, J., & Oliveira, R. (2026). Comparative Adaptations to Different Leg Extension Set-termination Strategies in Trained Men and Women: A Unilateral Within-Participant Study. Journal of strength and conditioning research, https://doi.org/10.1519/JSC.0000000000005494
dc.identifier.doihttps://doi.org/10.1519/JSC.0000000000005494
dc.identifier.urihttp://hdl.handle.net/10400.15/6171
dc.language.isoeng
dc.peerreviewedyes
dc.relationUID/04045/2025
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectrepetitions-in-reserve
dc.subjectmuscular adaptations
dc.subjectautoregulation
dc.subjectset termination
dc.titleComparative Adaptations to Different Leg Extension Set-termination Strategies in Trained Men and Women: A Unilateral Within-Participant Studyeng
dc.typeresearch article
dspace.entity.typePublication
oaire.citation.titleJournal of strength and conditioning research
oaire.versionhttp://purl.org/coar/version/c_ab4af688f83e57aa
person.familyNameVasconcelos
person.familyNameBrito
person.familyNameOliveira
person.givenNameTiago
person.givenNameJoão Paulo
person.givenNameRafael
person.identifier.ciencia-id9C16-7F53-1375
person.identifier.orcid0009-0005-6080-7302
person.identifier.orcid0000-0003-4357-4269
person.identifier.orcid0000-0001-6671-6229
relation.isAuthorOfPublication38c641c3-809c-4fad-8812-94a09b3d16de
relation.isAuthorOfPublication2e040958-1fa8-47f8-bbca-29ebfe3d989b
relation.isAuthorOfPublication048765fe-a23f-4a68-9e6e-f278321223ac
relation.isAuthorOfPublication.latestForDiscovery048765fe-a23f-4a68-9e6e-f278321223ac

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