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Acute Effect of Aerobic Exercise on Cardiovascular Reactivity During a Mental Stress Test in Teachers

27. oktober 2026 oppdatert av: Lucieli Teresa Cambri, Federal University of Mato Grosso

Acute Effect of Moderate-intensity Aerobic Exercise on Cardiovascular Reactivity During a Mental Stress Test in Teachers

This study will investigate the acute effect of a single session of moderate-intensity aerobic exercise on blood pressure responses to mental stress in teachers. Participants will complete two experimental sessions: a control session without exercise and a 30-minute moderate-intensity aerobic exercise session. The intensity of the aerobic exercise session will be set at 50-60% of the heart rate reserve. The order of the experimental sessions will be randomized. We will assess blood pressure and heart rate at rest and during a mental stress test performed before and 30 minutes after each session. The two sessions will be separated by 48-72 hours.

Studieoversikt

Status

Har ikke rekruttert ennå

Forhold

Intervensjon / Behandling

Detaljert beskrivelse

This study will investigate the acute effects of a moderate-intensity aerobic exercise session on blood pressure responses to mental stress in teachers. Participants will complete two experimental sessions: a control session without exercise and a 30-minute moderate-intensity aerobic exercise session. The intensity of the aerobic exercise session will be set at 50-60% of the heart rate reserve. The order of the experimental sessions will be randomized. We will assess blood pressure and heart rate at rest and during a mental stress test performed before and 30 minutes after each session. The two sessions will be separated by 48-72 hours.

The mental stress test will consist of a computerized Stroop Color Test involving the colors green, red, blue, and yellow. Participants will be instructed to identify the color of the word rather than read the word itself. For example, if the word "green" is displayed in red, the correct response is "red." Each word will be displayed for one second. An auditory stimulus consisting of words that differ from both the written word and the displayed color will also be presented. The total duration of the mental stress test will be 4 minutes (Probst et al., 1997; Cavalcante, 2023).

Systolic blood pressure (SBP), diastolic blood pressure (DBP), and HR will be assessed at baseline and during the mental stress test (at 2 and 4 minutes) performed before and 30 minutes after each session.

Mental stress reactivity (Δ) will be calculated at 2 and 4 minutes as the value measured at each time point minus the corresponding pre-test baseline value (Δ2 = value at 2 minutes - baseline value; Δ4 = value at 4 minutes - baseline value). Peak Δ will be defined as the highest response observed at either 2 or 4 minutes (the maximum of Δ2 and Δ4). The change in blood pressure reactivity from before to 30 minutes after each experimental session will be compared between the moderate-intensity aerobic exercise and control conditions.

Studietype

Intervensjonell

Registrering (Antatt)

25

Fase

  • Ikke aktuelt

Kontakter og plasseringer

Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.

Studiekontakt

Studiesteder

  • Brasil
    • Mato Grosso
      • Cuiabá, Mato Grosso, Brasil, 78.060-581
        • Federal University of Mato Grosso

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

18 år til 65 år (Voksen, Eldre voksen)

Tar imot friske frivillige

Ja

Kjønn som er kvalifisert for studier

Alle

Beskrivelse

Inclusion Criteria:

Participants must meet all of the following criteria:

  • Age between 18 and 65 years;
  • Body mass index (BMI) between 18.5 and 39.9 kg/m²;
  • Currently employed as a teacher;
  • At least 2 years of experience as a teacher;
  • Able to perform the proposed physical exercise interventions.

Exclusion Criteria:

  • Have a psychiatric disorder that could interfere with participation in the study;
  • Have a diagnosed cardiac arrhythmia;
  • Have musculoskeletal or osteoarticular conditions that prevent or contraindicate physical exercise;
  • Are pregnant or breastfeeding;
  • Are on leave of absence or vacation during the study period.

Studieplan

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

  • Primært formål: Forebygging
  • Tildeling: Randomisert
  • Intervensjonsmodell: Crossover-oppdrag
  • Masking: Enkelt

Våpen og intervensjoner

Deltakergruppe / Arm
Intervensjon / Behandling
Sham-komparator: Styre
Annen: Control

Participants will undergo a control session without physical exercise. Blood pressure and heart rate will be assessed at rest and during the Stroop Color Test, performed before and 30 minutes after the control session.
Eksperimentell: Aerob trening med moderat intensitet
Annen: Acute Exercise

Participants will perform a 30-minute moderate-intensity aerobic exercise session at 50-60% of the heart rate reserve. Blood pressure and heart rate will be assessed at rest and during the Stroop Color Test, performed before and 30 minutes after the exercise session.

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Systolic blood pressure reactivity to mental stress
Tidsramme: During the mental stress test (0, 2 and 4 minutes), before and 30 minutes after each experimental session.

Systolic blood pressure will be measured at rest and during the Stroop Color Test before and 30 minutes after each experimental session. Systolic blood pressure reactivity to mental stress will be calculated as the change (Δ) in systolic blood pressure between the resting measurement and the measurement obtained during the Stroop Color Test.

The change in systolic blood pressure reactivity from before to 30 minutes after each experimental session will be compared between the session of moderate-intensity aerobic exercise and control conditions.
During the mental stress test (0, 2 and 4 minutes), before and 30 minutes after each experimental session.
Post-exercise hypotension
Tidsramme: At rest before and 30 minutes after each experimental session.

Post-exercise hypotension will be assessed by comparing systolic and diastolic blood pressure measured 30 minutes after each experimental session with the corresponding pre-exercise resting measurements.
At rest before and 30 minutes after each experimental session.

Sekundære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Diastolic blood pressure reactivity to mental stress
Tidsramme: During the mental stress test (0, 2 and 4 minutes), before and 30 minutes after each experimental session.

Diastolic blood pressure reactivity to mental stress will be calculated as the change (Δ) in diastolic blood pressure between the resting measurement and the measurement obtained during the Stroop Color Test. The change in diastolic blood pressure reactivity from before to 30 minutes after each experimental session will be compared between the session of moderate-intensity aerobic exercise and control conditions.
During the mental stress test (0, 2 and 4 minutes), before and 30 minutes after each experimental session.
Heart rate reactivity to mental stress
Tidsramme: During the mental stress test (0, 2 and 4 minutes), before and 30 minutes after each experimental session.

Heart rate reactivity to mental stress will be calculated as the change (Δ) in heart rate between the resting measurement and the measurement obtained during the Stroop Color Test. The change in heart rate reactivity from before to 30 minutes after each experimental session will be comparedthe session of moderate-intensity aerobic exercise and control conditions.
During the mental stress test (0, 2 and 4 minutes), before and 30 minutes after each experimental session.

Samarbeidspartnere og etterforskere

Det er her du vil finne personer og organisasjoner som er involvert i denne studien.

Sponsor

Federal University of Mato Grosso

Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart (Antatt)

1. desember 2026

Primær fullføring (Antatt)

1. desember 2028

Studiet fullført (Antatt)

1. desember 2028

Datoer for studieregistrering

Først innsendt

27. oktober 2026

Først innsendt som oppfylte QC-kriteriene

27. oktober 2026

Først lagt ut (Faktiske)

3. november 2026

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

3. november 2026

Siste oppdatering sendt inn som oppfylte QC-kriteriene

27. oktober 2026

Sist bekreftet

1. oktober 2026

Mer informasjon

Begreper knyttet til denne studien

Nøkkelord

Ytterligere relevante MeSH-vilkår

Andre studie-ID-numre

  • 97330026.5.0000.8124-ProtocolB

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