- ICH GCP
- US Clinical Trials Registry
- Klinisk forsøg NCT07713407
The Effect of the Modified Mitchell Relaxation Method on Acute Cardiac Autonomic Modulation
16. juli 2026 opdateret af: Utku Berberoğlu, Balikesir University
The purpose of this multi-center, randomized controlled trial is to investigate the acute effects of the standard Laura Mitchell Physiological Relaxation Method versus a Modified Mitchell Relaxation Version on cardiac autonomic modulation (heart rate variability).
The study will include 122 participants aged 18-65 who score 10 or higher on the Generalized Anxiety Disorder-7 (GAD-7) scale, indicating high anxiety and potentially reduced parasympathetic control.
Participants will be randomly allocated into two equal groups (n=61 per group) using a block randomization system with a concealed envelope method.
To control for expectation bias, an incomplete disclosure protocol will be utilized, ensuring participants remain blinded to their specific group allocation.
Both interventions will last 35 minutes and will be delivered via audio recordings in a supine position (Mitchell's 'Position A') to prevent investigator bias.
Cardiac autonomic responses will be assessed using a Polar H10 chest strap to analyze Heart Rate Variability (HRV) before, during, and after the sessions.
Blood pressure and respiration rate will also be monitored as secondary outcomes
Studieoversigt
Status
Ikke rekrutterer endnu
Betingelser
Intervention / Behandling
Undersøgelsestype
Interventionel
Tilmelding (Anslået)
122
Fase
- Ikke anvendelig
Kontakter og lokationer
Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.
Studiekontakt
- Navn: Utku Berberoğlu, Assistant Professor
- Telefonnummer: +905052017066
- E-mail: utku.berberoglu@balikesir.edu.tr
Undersøgelse Kontakt Backup
- Navn: Dilek Işık, MsC
- Telefonnummer: +905372569963
- E-mail: caldilek10@gmail.com
Deltagelseskriterier
Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.
Berettigelseskriterier
Aldre berettiget til at studere
- Voksen
- Ældre voksen
Tager imod sunde frivillige
Ja
Beskrivelse
Inclusion Criteria:
- Being 18-65 years old.
- Having stress and anxiety
Exclusion Criteria:
- Taking cardioactive/psychotropic drugs.
- Having a diagnosis of cardiovascular disease.
Studieplan
Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Behandling
- Tildeling: Randomiseret
- Interventionel model: Parallel tildeling
- Maskning: Enkelt
Våben og indgreb
Deltagergruppe / Arm |
Intervention / Behandling |
|---|---|
|
Eksperimentel: Standard Laura Mitchell Exercises
|
Original Relaxation Exercises based on Skin and Proprioceptive Awareness and Reciprocal Mussle Inhibition
Andre navne:
|
|
Eksperimentel: Modified Mitchell Exercises
|
Modified Relaxation Exercises based on Muscle Energy Technique, Deep Breathing, Additional Natural Relxation Postures in addition Skin and Proprioceptive Awareness and Reciprocal Mussle .
|
Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
RMSSD - Root Mean Square of Succesive Differences of RR Peaks of EKG
Tidsramme: During a single intervention session (approximately 35 minutes), including 5 minutes before, throughout the 25-minute intervention, and 5 minutes after the intervention.
|
Root Mean Square of Succesive Differences of RR Peaks of EKG
|
During a single intervention session (approximately 35 minutes), including 5 minutes before, throughout the 25-minute intervention, and 5 minutes after the intervention.
|
Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Time-Domain Heart Rate Variability Parameters (SDNN, RMSSD, Mean RR Interval)
Tidsramme: During a single intervention session (approximately 35 minutes), including 5 minutes before, throughout the 25-minute intervention, and 5 minutes after the intervention.
|
Time-domain HRV parameters, including the standard deviation of NN intervals (SDNN), the root mean square of successive differences between normal heartbeats (RMSSD), and mean RR interval duration, will be calculated from continuous ECG/PPG recordings.
[Unit: milliseconds]
|
During a single intervention session (approximately 35 minutes), including 5 minutes before, throughout the 25-minute intervention, and 5 minutes after the intervention.
|
|
Absolute Spectral Power HRV Parameters (LF, HF)
Tidsramme: During a single intervention session (approximately 35 minutes), including 5 minutes before, throughout the 25-minute intervention, and 5 minutes after the intervention.
|
Low-frequency (LF, 0.04-0.15
Hz) and high-frequency (HF, 0.15-0.4
Hz) spectral power components of heart rate variability will be calculated from RR interval series using power spectral density analysis.
[Unit: ms²]
|
During a single intervention session (approximately 35 minutes), including 5 minutes before, throughout the 25-minute intervention, and 5 minutes after the intervention.
|
|
LF/HF Ratio
Tidsramme: During a single intervention session (approximately 35 minutes), including 5 minutes before, throughout the 25-minute intervention, and 5 minutes after the intervention.
|
The ratio of low-frequency to high-frequency spectral power, reflecting sympathovagal balance, will be calculated from RR interval series.
[Unit: ratio (unitless)]
|
During a single intervention session (approximately 35 minutes), including 5 minutes before, throughout the 25-minute intervention, and 5 minutes after the intervention.
|
|
Poincaré Plot HRV Parameters (SD1, SD2)
Tidsramme: During a single intervention session (approximately 35 minutes), including 5 minutes before, throughout the 25-minute intervention, and 5 minutes after the intervention.
|
Standard deviation of the Poincaré plot perpendicular to the line of identity (SD1) and along the line of identity (SD2), reflecting short- and long-term heart rate variability, will be calculated from RR interval series.
[Unit: milliseconds]
|
During a single intervention session (approximately 35 minutes), including 5 minutes before, throughout the 25-minute intervention, and 5 minutes after the intervention.
|
|
Non-linear HRV Complexity Parameters (SD1/SD2 Ratio, Sample Entropy)
Tidsramme: During a single intervention session (approximately 35 minutes), including 5 minutes before, throughout the 25-minute intervention, and 5 minutes after the intervention.
|
The SD1/SD2 ratio and sample entropy (SampEn), reflecting the complexity and unpredictability of heart rate dynamics, will be calculated from RR interval series.
[Unit: unitless]
|
During a single intervention session (approximately 35 minutes), including 5 minutes before, throughout the 25-minute intervention, and 5 minutes after the intervention.
|
Samarbejdspartnere og efterforskere
Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.
Sponsor
Datoer for undersøgelser
Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.
Studer store datoer
Studiestart (Anslået)
1. juli 2026
Primær færdiggørelse (Anslået)
1. juli 2028
Studieafslutning (Anslået)
1. juli 2028
Datoer for studieregistrering
Først indsendt
26. juni 2026
Først indsendt, der opfyldte QC-kriterier
16. juli 2026
Først opslået (Faktiske)
20. juli 2026
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
20. juli 2026
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
16. juli 2026
Sidst verificeret
1. juli 2026
Mere information
Begreber relateret til denne undersøgelse
Nøgleord
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
- GO 2026/125
Plan for individuelle deltagerdata (IPD)
Planlægger du at dele individuelle deltagerdata (IPD)?
JA
IPD-planbeskrivelse
All de-identified individual participant data collected during the trial will be made available indefinitely in a publicly accessible data repository immediately following the publication of the study results.
IPD-delingstidsramme
Upon publication and indefinitely.
IPD-delingsadgangskriterier
Data will be made publicly available in an open-access repository immediately after publication.
There are no restrictions on access, and no formal application or approval is required to download the de-identified dataset.
IPD-deling Understøttende informationstype
- STUDY_PROTOCOL
- SAP
- ICF
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