Effects of Two Endurance Training Programs on 5-km Running Performance in Recreational Runners
30 luglio 2026 aggiornato da: Shuqi Jia
Effects of Lactate Threshold Training and Pyramidal-to-Polarized Endurance Training on 5-km Running Performance, Physiological Capacity, and Post-exercise Neural Responses in Recreational Runners: A Randomized Controlled Trial
This study will examine the effects of two 8-week endurance training programs on 5-km running performance in recreational runners. Participants will be randomly assigned to a lactate threshold training group, a pyramidal-to-polarized endurance training group, or a control group that maintains usual physical activity without receiving the study training program.
Before and after the intervention, participants will complete assessments of 5-km running performance, aerobic fitness, lactate threshold, running economy, blood lactate responses, and brain activity recorded before and after maximal exercise. The study will compare changes among the three groups and examine whether physiological and post-exercise neural responses are associated with improvements in running performance.
The main purpose is to determine whether the two training programs produce different improvements in 5-km running performance and to better understand the physiological and neural adaptations associated with endurance training in recreational runners.
Panoramica dello studio
Stato
Non ancora reclutamento
Intervento / Trattamento
Tipo di studio
Interventistico
Iscrizione (Stimato)
60
Fase
- Non applicabile
Contatti e Sedi
Questa sezione fornisce i recapiti di coloro che conducono lo studio e informazioni su dove viene condotto lo studio.
Contatto studio
- Nome: Shuqi Jia
- Numero di telefono: +8613327732991
- Email: jsq2221111006@163.com
Criteri di partecipazione
I ricercatori cercano persone che corrispondano a una certa descrizione, chiamata criteri di ammissibilità. Alcuni esempi di questi criteri sono le condizioni generali di salute di una persona o trattamenti precedenti.
Criteri di ammissibilità
Età idonea allo studio
- Adulto
Accetta volontari sani
Sì
Descrizione
Inclusion Criteria:
- Men and women aged [18-30] years.
- Recreational runners with regular running or endurance-training experience for at least [6 months].
- Currently completing running training at least [2-3 times per week].
- Able to complete a continuous 5-km run.
- Willing and able to complete the 8-week training intervention and all study assessments.
- Able to understand the study procedures and provide written informed consent.
Exclusion Criteria:
- Current cardiovascular, respiratory, metabolic, neurological, or other medical conditions that may contraindicate maximal exercise or endurance training.
- Current musculoskeletal injury or pain that limits running or participation in maximal exercise testing.
- History of loss of consciousness, epilepsy, severe head injury, or other neurological conditions that may affect electroencephalographic recordings.
- Use of medications or substances known to substantially affect cardiovascular, metabolic, or central nervous system responses to exercise.
- Participation in another structured exercise intervention or clinical study during the study period.
- Inability or unwillingness to comply with the assigned training program, testing procedures, or study requirements.
- Any other condition judged by the investigators to make participation unsafe or to substantially affect the validity of the study outcomes.
Piano di studio
Questa sezione fornisce i dettagli del piano di studio, compreso il modo in cui lo studio è progettato e ciò che lo studio sta misurando.
Come è strutturato lo studio?
Dettagli di progettazione
- Scopo principale: Scienza basilare
- Assegnazione: Randomizzato
- Modello interventistico: Assegnazione parallela
- Mascheramento: Doppio
Armi e interventi
Gruppo di partecipanti / Arm |
Intervento / Trattamento |
|---|---|
|
Sperimentale: Lactate Threshold Training Group
Participants assigned to this group will complete an 8-week endurance training program primarily prescribed around their individually determined lactate threshold intensity.
Training intensity will be individualized using baseline physiological testing and adjusted according to the study protocol.
Participants will complete the prescribed training sessions throughout the intervention period and will undergo the same pre- and post-intervention assessments as the other study groups.
|
Participants will complete an 8-week individualized endurance training program prescribed primarily around the lactate threshold.
Training intensity will be determined from baseline physiological testing.
The program will specify the frequency, duration, and intensity of each training session and will be adjusted according to the study protocol.
|
|
Sperimentale: Pyramidal-to-Polarized Endurance Training Group
Participants assigned to this group will complete an 8-week periodized endurance training program in which the training-intensity distribution progresses from a pyramidal pattern during the initial phase to a polarized pattern during the later phase.
Exercise intensity will be individualized using baseline physiological testing and adjusted according to the study protocol.
Participants will undergo the same pre- and post-intervention assessments as the other study groups.
|
Participants will complete an 8-week individualized endurance training program in which the training-intensity distribution progresses from a pyramidal pattern during the initial phase to a polarized pattern during the later phase.
Training intensity will be prescribed using individually determined physiological thresholds obtained from baseline testing.
The program will include low-, moderate-, and high-intensity running sessions, with the relative distribution of training time across intensity zones adjusted according to the planned periodization.
Training frequency, session duration, and intensity will be standardized according to the study protocol and monitored throughout the intervention.
|
|
Nessun intervento: Usual Activity Control Group
Participants assigned to this group will continue their usual physical activity and running habits during the 8-week study period and will not receive either of the structured training programs administered by the research team.
Participants will be asked not to begin any new structured endurance training program during the intervention period and will undergo the same pre- and post-intervention assessments as the training groups.
|
Cosa sta misurando lo studio?
Misure di risultato primarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
|
Change in 5-km Running Performance
Lasso di tempo: Baseline and immediately after the 8-week intervention
|
5-km running performance will be assessed using a maximal-effort self-paced 5-km run conducted on a standard 400-m outdoor athletics track.
Completion time will be recorded in seconds.
The primary outcome will be the change in 5-km completion time from baseline to the end of the 8-week intervention.
A lower completion time indicates better running performance.
|
Baseline and immediately after the 8-week intervention
|
Misure di risultato secondarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
|
Change in Maximal Oxygen Uptake
Lasso di tempo: Baseline and immediately after the 8-week intervention
|
Maximal oxygen uptake will be assessed during a graded cardiopulmonary exercise test performed to volitional exhaustion.
Oxygen uptake will be measured breath-by-breath and expressed relative to body mass in milliliters per kilogram per minute.
The outcome will be the change in maximal oxygen uptake from baseline to the end of the 8-week intervention.
|
Baseline and immediately after the 8-week intervention
|
|
Change in Lactate Threshold
Lasso di tempo: Baseline and immediately after the 8-week intervention
|
Lactate threshold will be determined during an incremental running test using blood lactate measurements and the prespecified threshold-identification method described in the study protocol.
The outcome will be the change in running speed or physiological intensity corresponding to the lactate threshold from baseline to the end of the 8-week intervention.
|
Baseline and immediately after the 8-week intervention
|
|
Change in Running Economy
Lasso di tempo: Baseline and immediately after the 8-week intervention
|
Running economy will be assessed during steady-state submaximal treadmill running at a standardized speed.
Oxygen uptake will be measured during the steady-state period and expressed relative to body mass.
The outcome will be the change in oxygen cost of running from baseline to the end of the 8-week intervention.
A lower oxygen cost at the same running speed indicates better running economy.
|
Baseline and immediately after the 8-week intervention
|
|
Change in Post-exercise Blood Lactate Concentration
Lasso di tempo: Baseline and immediately after the 8-week intervention, with measurements before exercise and at 5 and 20 minutes after exercise
|
Capillary blood lactate concentration will be measured at prespecified time points before and after maximal exercise.
The outcome will include changes in post-exercise blood lactate concentration and lactate recovery from baseline to the end of the 8-week intervention.
Blood lactate concentration will be expressed in millimoles per liter.
|
Baseline and immediately after the 8-week intervention, with measurements before exercise and at 5 and 20 minutes after exercise
|
|
Change in Post-exercise Electroencephalographic Activity
Lasso di tempo: Baseline and immediately after the 8-week intervention, with electroencephalographic recordings before exercise and at 5 and 20 minutes after exercise
|
Resting electroencephalographic activity will be recorded before maximal exercise and during recovery after exercise.
Prespecified electroencephalographic outcomes will include relative spectral power in selected frequency bands and cortical regions.
The outcome will be the change in post-exercise electroencephalographic responses from baseline to the end of the 8-week intervention.
|
Baseline and immediately after the 8-week intervention, with electroencephalographic recordings before exercise and at 5 and 20 minutes after exercise
|
Altre misure di risultato
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
|
Change in Event-Related Potential Responses During Cognitive Tasks
Lasso di tempo: Baseline and immediately after the 8-week intervention, with recordings before exercise and at 5 and 20 minutes after maximal exercise
|
Event-related potentials will be recorded during prespecified cognitive tasks before and after the 8-week intervention.
Prespecified outcomes will include the amplitude and latency of selected ERP components, including N2 and P3 components, at predefined scalp regions and task conditions.
The outcome will be the change in ERP amplitude and latency from baseline to the end of the intervention, as well as changes in the acute ERP response from before to after maximal exercise.
|
Baseline and immediately after the 8-week intervention, with recordings before exercise and at 5 and 20 minutes after maximal exercise
|
Collaboratori e investigatori
Qui è dove troverai le persone e le organizzazioni coinvolte in questo studio.
Sponsor
Studiare le date dei record
Queste date tengono traccia dell'avanzamento della registrazione dello studio e dell'invio dei risultati di sintesi a ClinicalTrials.gov. I record degli studi e i risultati riportati vengono esaminati dalla National Library of Medicine (NLM) per assicurarsi che soddisfino specifici standard di controllo della qualità prima di essere pubblicati sul sito Web pubblico.
Studia le date principali
Inizio studio (Stimato)
1 agosto 2026
Completamento primario (Stimato)
1 ottobre 2026
Completamento dello studio (Stimato)
8 novembre 2026
Date di iscrizione allo studio
Primo inviato
28 luglio 2026
Primo inviato che soddisfa i criteri di controllo qualità
28 luglio 2026
Primo Inserito (Effettivo)
31 luglio 2026
Aggiornamenti dei record di studio
Ultimo aggiornamento pubblicato (Effettivo)
3 agosto 2026
Ultimo aggiornamento inviato che soddisfa i criteri QC
30 luglio 2026
Ultimo verificato
1 luglio 2026
Maggiori informazioni
Termini relativi a questo studio
Parole chiave
Altri numeri di identificazione dello studio
- SUS-5KM-RCT-2026
Piano per i dati dei singoli partecipanti (IPD)
Hai intenzione di condividere i dati dei singoli partecipanti (IPD)?
NO
Descrizione del piano IPD
Individual participant data will not be shared because the current informed consent and ethics-approved study documents do not include provisions for external sharing of participant-level data.
Aggregate results may be reported in publications.
Informazioni su farmaci e dispositivi, documenti di studio
Studia un prodotto farmaceutico regolamentato dalla FDA degli Stati Uniti
No
Studia un dispositivo regolamentato dalla FDA degli Stati Uniti
No
Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .