Acute Endocrine Responses to Aerobic and Anaerobic Exercise in Sedentary Women: A Comparative Analysis of Thyroid Hormones and Cortisol (AERAE)
Panoramica dello studio
Stato
Stato
Condizioni
Condizioni
Intervento / Trattamento
Intervento / Trattamento
Descrizione dettagliata
This interventional study is designed to compare the acute endocrine responses elicited by aerobic and anaerobic exercise in sedentary women. A total of 30 healthy sedentary women aged 18-25 years will voluntarily participate. Individuals who have engaged in regular exercise or sports training, experienced a serious upper- or lower-extremity injury during the previous six months, or had a neurological, auditory, visual, or vestibular disorder during the previous year will not be included. Before participation, all individuals will be informed about the study procedures, provide written informed consent, and undergo medical screening.
Each participant will complete aerobic and anaerobic exercise protocols in separate testing sessions. The aerobic exercise protocol will consist of a progressive 20-meter shuttle run test. Participants will run continuously between two lines positioned 20 meters apart, following prerecorded audio signals. Running speed will progressively increase as the interval between signals decreases. The test will end when a participant fails to reach the designated line before the signal on two consecutive occasions.
The anaerobic exercise protocol will consist of a 30-second Wingate test performed on a Monark cycle ergometer connected to computerized analysis software. Following an unloaded acceleration period of approximately 3-4 seconds, an external resistance equivalent to 65 g/kg of body mass will be applied. Participants will be instructed to pedal against this resistance at maximal effort for 30 seconds.
Four venous blood samples will be collected from each participant: immediately before and after the aerobic exercise protocol and immediately before and after the anaerobic exercise protocol. Each sample will consist of approximately 8 mL of blood collected from an antecubital vein by qualified healthcare professionals under medical supervision. The samples will be centrifuged at 3,500 revolutions per minute to separate serum and plasma. Serum thyroid-stimulating hormone (TSH), triiodothyronine (T3), thyroxine (T4), and cortisol concentrations will be measured using chemiluminescence-based laboratory methods.
Exercise testing will be conducted at the Hasan Doğan School of Physical Education and Sports Laboratory at Karabuk University. Laboratory analyses will be performed at the Public Health Laboratory of the Karabuk Provincial Health Directorate. Pre-to-post-exercise changes in hormone concentrations will be evaluated within each exercise condition and compared between the aerobic and anaerobic exercise protocols.
Tipo di studio
Tipo di studio
Iscrizione (Stimato)
Iscrizione
Fase
Fase
- Non applicabile
Contatti e Sedi
Contatto studio
Contatto studio
- Nome: Özgür EKEN, PhD
- Numero di telefono: +905532132795
- Email: ozgur.eken@inonu.edu.tr
Luoghi di studio
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Karabük Province
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Karabük, Karabük Province, Turchia (Türkiye), 78050
- Reclutamento
- Karabuk University, Hasan Dogan Faculty of Sport Sciences
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Contatto:
- Musa ŞAHİN, PhD
- Numero di telefono: +905549755058
- Email: musasahin@karabuk.edu.tr
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Criteri di partecipazione
Criteri di ammissibilità
Criteri di ammissibilità
Età idonea allo studio
- Adulto
Accetta volontari sani
Descrizione
Inclusion Criteria:
- Female participants aged 18-25 years
- Studying at the Faculty of Sports Sciences of Yalova University
- Not actively participating in regular exercise or sports training
- Voluntarily agreeing to participate in the study
- Providing written informed consent
- Being medically eligible to perform the exercise protocols following preparticipation medical screening
Exclusion Criteria:
- Having a neurological disorder during the previous year
- Having an auditory, visual, or vestibular disorder during the previous year
- Having experienced a serious upper- or lower-extremity injury during the previous six months
- Having any medical condition identified during screening that could prevent safe participation in maximal exercise testing
- Being unable or unwilling to complete either exercise protocol or blood-sampling procedures
Piano di studio
Come è strutturato lo studio?
Dettagli di progettazione
- Scopo principale: Scienza basilare
- Assegnazione: N / A
- Modello interventistico: Assegnazione di gruppo singolo
- Mascheramento: Nessuno (etichetta aperta)
Numero di armi
Armi e interventi
Gruppo di partecipanti / ArmGruppo di partecipanti / Arm |
Intervento / TrattamentoIntervento / Trattamento |
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Sperimentale: Aerobic and Anaerobic Exercise
Participants will complete both a progressive 20-meter shuttle run test and a 30-second Wingate anaerobic test in separate testing sessions.
Venous blood samples will be collected immediately before and after each exercise protocol to assess acute changes in serum thyroid-stimulating hormone (TSH), triiodothyronine (T3), thyroxine (T4), and cortisol concentrations.
Each participant will serve as her own control.
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Participants will perform a progressive 20-meter shuttle run test by running continuously between two lines positioned 20 meters apart in time with prerecorded audio signals.
The initial running speed will progressively increase as the interval between audio signals decreases.
The test will end when the participant fails to reach the designated line before the signal on two consecutive occasions.
Participants will perform a 30-second Wingate anaerobic test on a Monark cycle ergometer connected to computerized analysis software.
Following an unloaded acceleration phase of approximately 3-4 seconds, a resistance corresponding to 65 g/kg of body mass will be applied.
Participants will be instructed to pedal against this resistance at maximal effort for 30 seconds.
Peak power, mean power, minimum power, and fatigue index will be recorded.
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Cosa sta misurando lo studio?
Misure di risultato primarie
Misure di risultato primarie
Misura del risultato |
Lasso di tempo |
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Change in Serum Cortisol Concentration
Lasso di tempo: Immediately before and immediately after each exercise protocol
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Immediately before and immediately after each exercise protocol
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Collaboratori e investigatori
Sponsor
Sponsor
Collaboratori
Collaboratori
Studiare le date dei record
Studia le date principali
Inizio studio (Stimato)
Inizio studio
Completamento primario (Stimato)
Completamento primario
Completamento dello studio (Stimato)
Completamento dello studio
Date di iscrizione allo studio
Primo inviato
Primo inviato
Primo inviato che soddisfa i criteri di controllo qualità
Primo inviato che soddisfa i criteri di controllo qualità
Primo Inserito (Effettivo)
Primo Inserito
Aggiornamenti dei record di studio
Ultimo aggiornamento pubblicato (Effettivo)
Ultimo aggiornamento pubblicato
Ultimo aggiornamento inviato che soddisfa i criteri QC
Ultimo aggiornamento inviato che soddisfa i criteri QC
Ultimo verificato
Ultimo verificato
Maggiori informazioni
Termini relativi a questo studio
Termini MeSH pertinenti aggiuntivi
Altri numeri di identificazione dello studio
Altri numeri di identificazione dello studio
- KBU-THYROID-2026-01
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Descrizione del piano IPD
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