Yoga-Based Breathing Exercises in a Salt-Cave Environment Versus a Standard Clinical Setting in Smokers (SPELEO-SMOKERS)
27 de julio de 2026 actualizado por: SEFA HAKTAN HATIK, Sinop University
Yoga-Based Breathing Exercises Performed in a Salt-Cave Environment Versus a Standard Clinical Setting in Smokers: A Randomized Controlled Trial
This randomized controlled trial evaluated whether performing the same yoga-based breathing exercise program in a salt-cave environment produced different respiratory, functional, physical activity, and quality-of-life outcomes compared with the same program performed in a standard clinical setting in adult smokers.
Sixty adult smokers were randomized to either a salt-cave group or a control group.
Both groups received a physiotherapist-supervised yoga-based breathing exercise program for 6 weeks, twice weekly, in 50-minute sessions.
The intervention content, frequency, duration, and physiotherapist supervision were identical in both groups; the only planned between-group difference was the intervention setting.
Spirometric outcomes were assessed at baseline, week 3, and week 6.
Functional exercise capacity, physical activity, and quality of life were assessed at baseline and week 6.
Descripción general del estudio
Estado
Terminado
Condiciones
Descripción detallada
Eligible participants were adult daily smokers aged 18 to 65 years who had smoked for at least the previous 12 months.
After baseline assessments, participants were randomized in a 1:1 ratio to the salt-cave group or the standard clinical setting group.
Allocation was generated by an independent researcher and concealed using sequentially numbered, opaque, sealed envelopes.
Both groups completed the same 6-week yoga-based breathing exercise program, delivered twice weekly under physiotherapist supervision.
Each standardized session lasted approximately 50 minutes and included preparatory breathing control, diaphragmatic breathing, Suusi breathing, Kapalabhati, Ujjayi, Anuloma-Viloma/Nadi Shodhana, Bhastrika, Bhramari, Agni Sar, and relaxation.
The salt-cave group received the program at the Tuzluca Salt Therapy Center, whereas the control group received the program in a standard private clinical setting.
Spirometric parameters included forced expiratory volume in 1 second (FEV1), forced vital capacity (FVC), peak expiratory flow (PEF), and the FEV1/FVC ratio.
Secondary assessments included the 6-minute walk test, the International Physical Activity Questionnaire-Short Form, and the World Health Organization Quality of Life-BREF.
Participant and provider blinding was not feasible because the settings were visibly different.
Statistical analysis was conducted using coded group labels.
Tipo de estudio
Intervencionista
Inscripción (Actual)
60
Fase
- No aplica
Contactos y Ubicaciones
Esta sección proporciona los datos de contacto de quienes realizan el estudio e información sobre dónde se lleva a cabo este estudio.
Ubicaciones de estudio
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Iğdır, Turquía (Türkiye), 76900
- Tuzluca Rock Salt Mine Salt Therapy Center
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Criterios de participación
Los investigadores buscan personas que se ajusten a una determinada descripción, denominada criterio de elegibilidad. Algunos ejemplos de estos criterios son el estado de salud general de una persona o tratamientos previos.
Criterio de elegibilidad
Edades elegibles para estudiar
- Adulto
- Adulto Mayor
Acepta Voluntarios Saludables
Sí
Descripción
Inclusion Criteria:
- Adults aged 18 to 65 years
- Voluntary participation and written informed consent
- Ability to ambulate and cooperate with assessments
- Literacy
- Daily smoking for at least the previous 12 months
- Body mass index below 30 kg/m²
Exclusion Criteria:
- Adults aged 18 to 65 years
- Voluntary participation and written informed consent
- Ability to ambulate and cooperate with assessments
- Literacy
- Daily smoking for at least the previous 12 months
- Body mass index below 30 kg/m²
Withdrawal Criteria
- Participant request to discontinue
- Pregnancy or suspected pregnancy
- Occurrence of a sports-related injury during assessments
Plan de estudios
Esta sección proporciona detalles del plan de estudio, incluido cómo está diseñado el estudio y qué mide el estudio.
¿Cómo está diseñado el estudio?
Detalles de diseño
- Propósito principal: Tratamiento
- Asignación: Aleatorizado
- Modelo Intervencionista: Asignación paralela
- Enmascaramiento: Ninguno (etiqueta abierta)
Armas e Intervenciones
Grupo de participantes/brazo |
Intervención / Tratamiento |
|---|---|
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Experimental: Salt-Cave Yoga-Based Breathing Exercise Group
Participants completed the physiotherapist-supervised yoga-based breathing exercise program at the Tuzluca Salt Therapy Center for 6 weeks, twice weekly.
The program content, session duration, frequency, and supervision were identical to those of the comparator group; the planned between-group difference was the intervention setting.
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Participants received a physiotherapist-supervised yoga-based breathing exercise program at the Tuzluca Salt Therapy Center.
The intervention lasted 6 weeks and included two sessions per week, for a total of 12 sessions.
Each standardized session lasted approximately 50 minutes and included preparatory breathing control, diaphragmatic breathing, Suusi breathing, Kapalabhati, Ujjayi, Anuloma-Viloma/Nadi Shodhana, Bhastrika, Bhramari, Agni Sar, and relaxation.
The exercise content, session frequency, duration, and physiotherapist supervision were identical to those provided in the standard clinical setting group; the planned difference was the intervention setting.
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Comparador activo: Standard Clinical Setting Yoga-Based Breathing Exercise Group
Participants completed the same physiotherapist-supervised yoga-based breathing exercise program at the Iğdır Fizyodinamik Wellness Center for 6 weeks, twice weekly.
The program content, session duration, frequency, and supervision were identical to those of the experimental group.
|
Participants received the same physiotherapist-supervised yoga-based breathing exercise program in a standard clinical setting at the Iğdır Fizyodinamik Wellness Center.
The intervention lasted 6 weeks and included two sessions per week, for a total of 12 sessions.
Each standardized session lasted approximately 50 minutes and included preparatory breathing control, diaphragmatic breathing, Suusi breathing, Kapalabhati, Ujjayi, Anuloma-Viloma/Nadi Shodhana, Bhastrika, Bhramari, Agni Sar, and relaxation.
The exercise content, session frequency, duration, and physiotherapist supervision were identical to those provided in the salt-cave group.
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¿Qué mide el estudio?
Medidas de resultado primarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
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Change in Forced Expiratory Volume in 1 Second (FEV1) From Baseline to Week 6
Periodo de tiempo: Baseline, week 3, and week 6; primary endpoint at week 6
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FEV1 was measured in liters using pre-bronchodilator spirometry.
Participants performed three forced expiratory maneuvers under standardized instruction, and the best acceptable value was recorded.
The primary comparison was the between-group difference in change from baseline to week 6.
An interim measurement was also obtained at week 3
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Baseline, week 3, and week 6; primary endpoint at week 6
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Medidas de resultado secundarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
|---|---|---|
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Change in Forced Vital Capacity (FVC) From Baseline to Week 6
Periodo de tiempo: Baseline, week 3, and week 6
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FVC in liters, measured by pre-bronchodilator spirometry; baseline, week 3, and week 6.
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Baseline, week 3, and week 6
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Change in Peak Expiratory Flow (PEF) From Baseline to Week 6
Periodo de tiempo: Baseline, week 3, and week 6
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PEF in L/s, measured by pre-bronchodilator spirometry; baseline, week 3, and week 6.
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Baseline, week 3, and week 6
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Change in FEV1/FVC Ratio From Baseline to Week 6
Periodo de tiempo: Baseline, week 3, and week 6
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FEV1/FVC expressed as a percentage; baseline, week 3, and week 6.
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Baseline, week 3, and week 6
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Change in 6-Minute Walk Distance From Baseline to Week 6
Periodo de tiempo: Baseline and week 6
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Distance walked in meters during the 6-minute walk test.
Two tests were administered and the longest distance was used; baseline and week 6.
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Baseline and week 6
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Change in Physical Activity Assessed by IPAQ-SF From Baseline to Week 6
Periodo de tiempo: Baseline and week 6
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Total physical activity expressed as MET-min/week using the standard IPAQ-SF scoring protocol; baseline and week 6.
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Baseline and week 6
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Change in WHOQOL-BREF Scores From Baseline to Week 6
Periodo de tiempo: Baseline and week 6
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Changes in General Health, Physical Health, Psychological, Social Relationships, and Environment scores; baseline and week 6.
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Baseline and week 6
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Participants With Intervention-Related Adverse Events
Periodo de tiempo: 6-week study period
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Number of participants experiencing intervention-related or spirometry-related adverse events during the 6-week study period.
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6-week study period
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Colaboradores e Investigadores
Aquí es donde encontrará personas y organizaciones involucradas en este estudio.
Patrocinador
Publicaciones y enlaces útiles
La persona responsable de ingresar información sobre el estudio proporciona voluntariamente estas publicaciones. Estos pueden ser sobre cualquier cosa relacionada con el estudio.
Publicaciones Generales
- Kaminsky DA, Guntupalli KK, Lippmann J, Burns SM, Brock MA, Skelly J, DeSarno M, Pecott-Grimm H, Mohsin A, LaRock-McMahon C, Warren P, Whitney MC, Hanania NA. Effect of Yoga Breathing (Pranayama) on Exercise Tolerance in Patients with Chronic Obstructive Pulmonary Disease: A Randomized, Controlled Trial. J Altern Complement Med. 2017 Sep;23(9):696-704. doi: 10.1089/acm.2017.0102. Epub 2017 Jul 17.
- Dinesh T, Gaur G, Sharma V, Madanmohan T, Harichandra Kumar K, Bhavanani A. Comparative effect of 12 weeks of slow and fast pranayama training on pulmonary function in young, healthy volunteers: A randomized controlled trial. Int J Yoga. 2015 Jan;8(1):22-6. doi: 10.4103/0973-6131.146051.
- Rashleigh R, Smith SM, Roberts NJ. A review of halotherapy for chronic obstructive pulmonary disease. Int J Chron Obstruct Pulmon Dis. 2014 Feb 21;9:239-46. doi: 10.2147/COPD.S57511. eCollection 2014.
- Freidl J, Huber D, Braunschmid H, Romodow C, Pichler C, Weisbock-Erdheim R, Mayr M, Hartl A. Winter Exercise and Speleotherapy for Allergy and Asthma: A Randomized Controlled Clinical Trial. J Clin Med. 2020 Oct 15;9(10):3311. doi: 10.3390/jcm9103311.
Fechas de registro del estudio
Estas fechas rastrean el progreso del registro del estudio y los envíos de resultados resumidos a ClinicalTrials.gov. Los registros del estudio y los resultados informados son revisados por la Biblioteca Nacional de Medicina (NLM) para asegurarse de que cumplan con los estándares de control de calidad específicos antes de publicarlos en el sitio web público.
Fechas importantes del estudio
Inicio del estudio (Actual)
1 de diciembre de 2022
Finalización primaria (Actual)
20 de febrero de 2023
Finalización del estudio (Actual)
28 de febrero de 2023
Fechas de registro del estudio
Enviado por primera vez
27 de julio de 2026
Primero enviado que cumplió con los criterios de control de calidad
27 de julio de 2026
Publicado por primera vez (Actual)
30 de julio de 2026
Actualizaciones de registros de estudio
Última actualización publicada (Actual)
30 de julio de 2026
Última actualización enviada que cumplió con los criterios de control de calidad
27 de julio de 2026
Última verificación
1 de julio de 2026
Más información
Términos relacionados con este estudio
Palabras clave
Términos MeSH relevantes adicionales
Otros números de identificación del estudio
- SPELEO-SMOKERS-2022
Plan de datos de participantes individuales (IPD)
¿Planea compartir datos de participantes individuales (IPD)?
NO
Descripción del plan IPD
Individual participant data will not be shared with external researchers.
Información sobre medicamentos y dispositivos, documentos del estudio
Estudia un producto farmacéutico regulado por la FDA de EE. UU.
No
Estudia un producto de dispositivo regulado por la FDA de EE. UU.
No
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