Influence of Neuromuscular Fatigue Accumulated During Training on Subsequent Chronic Adaptations: PROTECT-10 (PROTECT-10)
A 13-week longitudinal experimental study designed to determine how the level of neuromuscular fatigue induced by strength training influences chronic adaptations. Four assessment periods (pre-protocol, mid-point 1, mid-point 2, and post-protocol) will be used to measure neuromuscular, physiological, and structural parameters. A reference group will be included to assess measurement variability across the evaluation phases (this group will only undergo these assessments), while an experimental group will follow a standardized training protocol (in addition to the assessment phases).
Panoramica dello studio
Descrizione dettagliata
Physical training is based on the dose-response principle, whereby the applied load determines the resulting adaptations. However, a higher dose does not consistently lead to greater gains (Hass et al., 2000; Mitchell et al., 2012), and the precise role of neuromuscular fatigue in chronic adaptations remains a subject of debate. Some studies suggest that fatigue-specifically peripheral fatigue, which directly reflects metabolic disturbances within the muscle-serves as a key stimulus for promoting neuromuscular adaptations (Rooney et al., 1994), while others have observed no significant effect (Folland et al., 2002). These discrepancies can be attributed to several factors: the lack of precise quantification of fatigue; the failure to distinguish between central and peripheral fatigue (the latter being a critical factor) (Hureau et al., 2022); and the failure to account for differences in fatigability between men and women (Hunter, 2016). Furthermore, recent research indicates that peripheral fatigue is regulated at an individual threshold by the tone of type III-IV muscle afferents, which modulate the central motor drive to limit the accumulation of fatigue (Amann et al., 2015; Hureau et al., 2016). Gaining a better understanding of how this threshold-along with its sensitivity and potential plasticity through training-influences the adaptive response is essential for optimizing exercise prescription, both for performance and for health.
Tipo di studio
Iscrizione (Stimato)
Fase
- Non applicabile
Contatti e Sedi
Luoghi di studio
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Strasbourg, Francia
- CEERIPE
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Criteri di partecipazione
Criteri di ammissibilità
Età idonea allo studio
Accetta volontari sani
Sessi ammissibili allo studio
Descrizione
Inclusion Criteria:
- Man or woman between 18 and 45 years of age
- Active lifestyle (assessed via the GPAQ-2 questionnaire, with a minimum threshold defined as 600 MET-minutes per week)
- Capable of understanding the objectives and risks associated with the research and providing informed consent-dated and signed-in the judgment of the investigator
- Affiliated with a social security scheme
Exclusion Criteria:
- Known neurological, neuromuscular, cardiovascular, respiratory, or psychiatric condition
- Minors, adults under legal protection, or individuals unable to provide informed consent personally; high-level athletes or those undergoing strength-based training
- Pregnant or breastfeeding women
- Individuals in an emergency situation
Piano di studio
Come è strutturato lo studio?
Dettagli di progettazione
- Scopo principale: Altro
- Assegnazione: Non randomizzato
- Modello interventistico: Assegnazione sequenziale
- Mascheramento: Nessuno (etichetta aperta)
Armi e interventi
Gruppo di partecipanti / Arm |
Intervento / Trattamento |
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Nessun intervento: Reference
This group will undergo only the assessment periods, without participating in the training program. It will allow for the monitoring of variations related to the passage of time, the repetition of tests, and measurement variability. This group will thus serve as a reference, and its results will be compared with those of the experimental group in order to estimate the actual effects of the training and to distinguish between "responders" and "non-responders" (Padilla et al., 2020; Bossi & Mata, 2025). |
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Sperimentale: experimental
This group will benefit from training sessions in addition to assessments. |
3 training periods, each consisting of two training sessions per week. |
Cosa sta misurando lo studio?
Misure di risultato primarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
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maximal isometric strength
Lasso di tempo: 3 weeks after the intervention
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Determine the change in the maximal isometric strength of the right knee extensors following the entire training program. |
3 weeks after the intervention
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Collaboratori e investigatori
Sponsor
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Inizio studio (Stimato)
Completamento primario (Stimato)
Completamento dello studio (Stimato)
Date di iscrizione allo studio
Primo inviato
Primo inviato che soddisfa i criteri di controllo qualità
Primo Inserito (Effettivo)
Aggiornamenti dei record di studio
Ultimo aggiornamento pubblicato (Effettivo)
Ultimo aggiornamento inviato che soddisfa i criteri QC
Ultimo verificato
Maggiori informazioni
Termini relativi a questo studio
Altri numeri di identificazione dello studio
- 2026-008
- 2026-A01333-48 (Identificatore di registro: ID-RCB (French national number))
Piano per i dati dei singoli partecipanti (IPD)
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