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Exercise Interventions in Obstructive Sleep Apnea Syndrome

3. června 2026 aktualizováno: Melis Usul, Istanbul University - Cerrahpasa

The Effect of Exercise Snacks and Aerobic Exercise on Circadian Rhythm and Functional Capacity in Individuals With Obstructive Sleep Apnea Syndrome

Obstructive Sleep Apnea Syndrome (OSA) is a condition characterized by repeated pauses or reductions in breathing during sleep, which can negatively affect sleep quality, daytime functioning, and physical capacity. Although regular exercise is known to have beneficial effects in OSA, the effects of different exercise approaches on circadian rhythm and functional capacity have not been sufficiently investigated.The primary aim of this study is to compare the effects of exercise snacking and aerobic exercise on circadian rhythm and functional capacity in individuals with OSA, in comparison with a control group. The secondary aim is to evaluate the effects of these exercise interventions on peripheral muscle strength, fatigue level, body composition, quality of life, and physical activity level.Participants will be randomly assigned to three groups: an aerobic exercise group, an exercise snacking group, and a control group. While the exercise groups will follow their respective intervention programs, the control group will continue their routine treatment.This study aims to answer whether exercise snacking, which consists of short bouts of exercise distributed throughout the day, may be an alternative or complementary approach to traditional aerobic exercise in individuals with OSA. In addition, this study aims to be the first randomized controlled trial evaluating the effects of exercise snacking on circadian rhythm and functional capacity in individuals with OSA.

Přehled studie

Postavení

Zatím nenabíráme

Podmínky

Intervence / Léčba

Detailní popis

Obstructive Sleep Apnea Syndrome (OSA) is a common sleep-related breathing disorder characterized by repeated episodes of partial or complete upper airway obstruction during sleep. It is associated with intermittent hypoxia, sleep fragmentation, and increased risk of cardiovascular and metabolic comorbidities. Emerging evidence also suggests a bidirectional relationship between OSA and circadian rhythm disruption, where each condition may negatively influence the other. Therefore, improving circadian regulation may be an important therapeutic target in OSA management.Exercise is a widely accepted non-pharmacological intervention in OSA due to its potential benefits on sleep-related outcomes and overall health. However, adherence to conventional structured exercise programs may be limited due to time constraints and sustainability issues. Recently, exercise snacking-short bouts of exercise performed throughout the day-has been proposed as a time-efficient and more feasible alternative to traditional exercise approaches. This strategy may improve long-term adherence by integrating physical activity into daily routines without requiring supervised sessions.Despite its potential advantages, evidence regarding the effects of exercise snacking in individuals with OSA is currently limited. In addition, there is a lack of randomized controlled trials comparing exercise snacking with aerobic exercise while also evaluating circadian rhythm-related outcomes in this population.This study is designed as a prospective, single-blind, randomized controlled trial. A total of 39 individuals diagnosed with moderate to severe OSA will be randomly assigned to three groups: aerobic exercise group, exercise snacking group, and control group. The intervention period will last 8 weeks. The aerobic exercise group will perform supervised aerobic and resistance-based training, while the exercise snacking group will perform short, home-based exercise bouts distributed across the day. The control group will continue usual medical care and receive a single session of sleep hygiene education.The study will evaluate the effects of the interventions on circadian rhythm and functional capacity as primary outcomes, and on secondary outcomes including fatigue, muscle strength, body composition, physical activity level, insomnia severity, and quality of life. Assessments will be performed at baseline and after the 8-week intervention period.

Typ studie

Intervenční

Zápis (Odhadovaný)

39

Fáze

  • Nelze použít

Kontakty a umístění

Tato část poskytuje kontaktní údaje pro ty, kteří studii provádějí, a informace o tom, kde se tato studie provádí.

Studijní kontakt

Studijní záloha kontaktů

  • Jméno: Gökşen Kuran Aslan, Professor
  • Telefonní číslo: +(90)5324095246
  • E-mail: goksenkuran@yahoo.com

Studijní místa

  • Turecko (Türkiye)
      • Istanbul, Turecko (Türkiye)
        • Istanbul University-Cerrahpaşa, Department of Physiotherapy and Rehabilitation, Istanbul, Türkiye
        • Kontakt:
        • Vrchní vyšetřovatel:
          • Melis USUL
        • Dílčí vyšetřovatel:
          • Gökşen Kuran Aslan
        • Dílčí vyšetřovatel:
          • Esen Kıyan
        • Dílčí vyšetřovatel:
          • Zeynep Banu Güngör

Kritéria účasti

Výzkumníci hledají lidi, kteří odpovídají určitému popisu, kterému se říká kritéria způsobilosti. Některé příklady těchto kritérií jsou celkový zdravotní stav osoby nebo předchozí léčba.

Kritéria způsobilosti

Věk způsobilý ke studiu

  • Dospělý
  • Starší dospělý

Přijímá zdravé dobrovolníky

Ne

Popis

Inclusion Criteria:

  • Individuals diagnosed with OSAHS (AHI ≥ 15) confirmed by polysomnography, with moderate or severe disease, who have been receiving CPAP therapy for at least 3 months.
  • Adults aged 30-65 years.
  • No participation in any regular exercise program within the last 6 months.

Exclusion Criteria:

  • Individuals with OSAHS and a body mass index (BMI) > 35 kg/m²
  • Severe chronic pulmonary disease
  • Neurological or musculoskeletal disorders that prevent exercise
  • Unstable cardiovascular conditions
  • Unstable metabolic conditions
  • Severe psychiatric disorders such as bipolar disorder or schizophrenia
  • Pregnancy or breastfeeding
  • Individuals working night shifts or with schedules that may cause jet lag
  • Use of steroid or hormone therapy
  • Use of melatonin or sleep-regulating medications within the last 3 months
  • Presence of acute infection or inflammation

Studijní plán

Tato část poskytuje podrobnosti o studijním plánu, včetně toho, jak je studie navržena a co studie měří.

Jak je studie koncipována?

Detaily designu

  • Primární účel: Léčba
  • Přidělení: Randomizované
  • Intervenční model: Paralelní přiřazení
  • Maskování: Žádné (otevřený štítek)

Zbraně a zásahy

Skupina účastníků / Arm
Intervence / Léčba
Aktivní komparátor: Aerobic Exercise Group
Aerobic Exercise Training
Behaviorální: Aerobic Exercise Training
Participants in the aerobic exercise group will undergo an 8-week supervised aerobic exercise program on a cycle ergometer, performed twice per week. Each session will last approximately 30-45 minutes and will include a 5-minute low-intensity warm-up and a 5-minute cool-down period. Exercise intensity will be set at a moderate level according to the Karvonen method. The main exercise duration will be progressively increased throughout the intervention period: 20 minutes during weeks 1-2, 25 minutes during weeks 3-4, 30 minutes during weeks 5-6, and 35 minutes during weeks 7-8. Participants' heart rate will be monitored during exercise sessions, and perceived exertion will be assessed using the Borg Rating of Perceived Exertion Scale.In addition, all participants will be instructed to perform resistance exercises once per week. The exercises will target the upper extremity, lower extremity, and core muscles and will consist of three different exercises.
Experimentální: Exercise Snacks Group
Exercise Snacking
Behaviorální: Exercise Snacking
The exercises will be performed by participants at home and supervised by the researcher. Since progression of each exercise will be implemented every two weeks, participants will be scheduled to attend the clinic every two weeks, where the exercises will be demonstrated. Each session will consist of six different exercises (squat, heel raises, marching in place, jumping jacks, upright row, and chest press). Each exercise will be performed for 1 minute, followed by a 1-minute seated rest interval. Thus, each session will last approximately 12 minutes. Exercise progression will be applied every two weeks for each exercise. During the sessions, participants will monitor their heart rate and oxygen saturation. An oxygen saturation level below 90% will be defined as the exercise termination criterion. Participants will be provided with a daily logbook to record completion of exercise snacking sessions.
Žádný zásah: Control Group (Usual Care)
Usual Care

Co je měření studie?

Primární výstupní opatření

Měření výsledku
Popis opatření
Časové okno
Pittsburgh Sleep Quality Index (PSQI) Total Score
Časové okno: From baseline to the end of the intervention at 8 weeks
Sleep quality assessed using the Pittsburgh Sleep Quality Index. Total scores range from 0 to 21, with higher scores indicating poorer sleep quality.
From baseline to the end of the intervention at 8 weeks
Epworth Sleepiness Scale (ESS) Total Score
Časové okno: From baseline to the end of the intervention at 8 weeks
Daytime sleepiness will be assessed using the Epworth Sleepiness Scal (ESS).Scores ≥10 indicate excessive daytime sleepiness.
From baseline to the end of the intervention at 8 weeks
Morningness-Eveningness Questionnaire (MEQ) Total Score
Časové okno: From baseline to the end of the intervention at 8 weeks
Circadian rhythm preference will be assessed using the Morningness-Eveningness Questionnaire (MEQ).The questionnaire consists of 19 items evaluating sleep-wake preferences and chronotype.Higher scores indicate morningness, whereas lower scores indicate eveningness.
From baseline to the end of the intervention at 8 weeks
Serum Cortisol Level
Časové okno: From baseline to the end of the intervention at 8 weeks
Fasting morning serum cortisol concentration measured by chemiluminescent immunoassay.
From baseline to the end of the intervention at 8 weeks
Serum Thyroid-Stimulating Hormone (TSH) Level
Časové okno: From baseline to the end of the intervention at 8 weeks
Fasting morning serum TSH concentration measured by chemiluminescent immunoassay.
From baseline to the end of the intervention at 8 weeks
Functional Capacity
Časové okno: From baseline to the end of the intervention at 8 weeks
Functional capacity will be assessed using the 6-Minute Walk Test (6MWT) according to American Thoracic Society criteria. Walking distance covered within 6 minutes will be recorded in meters. Higher values indicate better functional capacity.
From baseline to the end of the intervention at 8 weeks
Total Sleep Time (Sleep Diary)
Časové okno: From baseline to the end of the intervention at 8 weeks
Total sleep time will be assessed subjectively using a sleep diary based on the Consensus Sleep Diary (CSD). Participants will complete the diary for 7 consecutive days at baseline and at week 8. Total sleep time will be recorded in minutes.
From baseline to the end of the intervention at 8 weeks
Total Sleep Time (Wearable Device)
Časové okno: From baseline to the end of the intervention at 8 weeks
Total sleep time will be objectively assessed using a Polar Unite wearable activity tracker with Sleep Plus Stages™ algorithm. Measurements will be collected over 3 consecutive nights at baseline and at week 8. Total sleep time will be expressed in minutes.
From baseline to the end of the intervention at 8 weeks
Sleep Efficiency (Wearable Device)
Časové okno: From baseline to the end of the intervention at 8 weeks
Sleep efficiency will be assessed using a Polar Unite wearable activity tracker with Sleep Plus Stages™ algorithm. Measurements will be collected over 3 consecutive nights at baseline and at week 8. Sleep efficiency will be expressed as percentage (%).
From baseline to the end of the intervention at 8 weeks

Sekundární výstupní opatření

Měření výsledku
Popis opatření
Časové okno
Insomnia Severity
Časové okno: From baseline to the end of the intervention at 8 weeks
Insomnia severity will be assessed using the Insomnia Severity Index (ISI). The ISI consists of 7 items scored from 0 to 4, with a total score ranging from 0 to 28. Higher scores indicate greater insomnia severity. Scores ≥10 indicate clinically significant insomnia.
From baseline to the end of the intervention at 8 weeks
Waist Circumference (cm)
Časové okno: From baseline to the end of the intervention at 8 weeks
Waist circumference measured using a non-elastic tape measure.
From baseline to the end of the intervention at 8 weeks
Hip Circumference (cm)
Časové okno: From baseline to the end of the intervention at 8 weeks
Hip circumference measured using a non-elastic tape measure.
From baseline to the end of the intervention at 8 weeks
Neck Circumference (cm)
Časové okno: From baseline to the end of the intervention at 8 weeks
Neck circumference measured using a non-elastic tape measure.
From baseline to the end of the intervention at 8 weeks
Muscle Mass (kg)
Časové okno: From baseline to the end of the intervention at 8 weeks
Muscle mass assessed using bioelectrical impedance analysis (BIA).
From baseline to the end of the intervention at 8 weeks
Body Fat Percentage (%)
Časové okno: From baseline to the end of the intervention at 8 weeks
Body fat percentage assessed using bioelectrical impedance analysis (BIA).
From baseline to the end of the intervention at 8 weeks
Bone Mass (kg)
Časové okno: From baseline to the end of the intervention at 8 weeks
Bone mass assessed using bioelectrical impedance analysis (BIA).
From baseline to the end of the intervention at 8 weeks
Body Water Percentage (%)
Časové okno: From baseline to the end of the intervention at 8 weeks
Body water percentage assessed using bioelectrical impedance analysis (BIA).
From baseline to the end of the intervention at 8 weeks
Fatigue Severity
Časové okno: From baseline to the end of the intervention at 8 weeks
Fatigue severity will be assessed using the Fatigue Severity Scale (FSS). The FSS consists of 9 items scored from 1 to 7. Higher scores indicate greater fatigue severity. Mean scores ≥4 indicate clinically significant fatigue.
From baseline to the end of the intervention at 8 weeks
Peripheral Muscle Strength
Časové okno: From baseline to the end of the intervention at 8 weeks
Peripheral muscle strength (quadriceps, biceps brachii, and handgrip strength) will be assessed using a hand-held dynamometer and handgrip dynamometer. Higher values indicate greater muscle strength.
From baseline to the end of the intervention at 8 weeks
Physical Activity Level
Časové okno: From baseline to the end of the intervention at 8 weeks
Physical activity level will be assessed using a pedometer. Average daily step count (steps/day) will be recorded. Higher values indicate greater physical activity.
From baseline to the end of the intervention at 8 weeks
Health-related quality of life (Functional Outcomes of Sleep Questionnaire, FOSQ)
Časové okno: From baseline to the end of the intervention at 8 weeks
Quality of life will be assessed using the Functional Outcomes of Sleep Questionnaire (FOSQ). The questionnaire consists of 26 items with total scores ranging from 4 to 16. Lower scores indicate greater impairment in sleep-related quality of life.
From baseline to the end of the intervention at 8 weeks
Patient Global Impression of Change
Časové okno: At the end of the intervention (8 weeks)
Perceived clinical improvement will be assessed using the Patient Global Impression of Change (PGIC). The scale ranges from 1 (very much improved) to 7 (very much worse). Lower scores indicate greater perceived improvement.
At the end of the intervention (8 weeks)

Spolupracovníci a vyšetřovatelé

Zde najdete lidi a organizace zapojené do této studie.

Sponzor

Istanbul University - Cerrahpasa

Vyšetřovatelé

  • Vrchní vyšetřovatel: MELİS USUL, Istanbul University - Cerrahpasa
  • Ředitel studie: Gökşen Kuran Aslan, Professor, Istanbul University - Cerrahpasa
  • Studijní židle: Esen Kıyan, Professor, Istanbul University Faculty of Medicine
  • Studijní židle: Zeynep Banu Güngör, Professor, Istanbul University - Cerrahpasa

Termíny studijních záznamů

Tato data sledují průběh záznamů studie a předkládání souhrnných výsledků na ClinicalTrials.gov. Záznamy ze studií a hlášené výsledky jsou před zveřejněním na veřejné webové stránce přezkoumány Národní lékařskou knihovnou (NLM), aby se ujistily, že splňují specifické standardy kontroly kvality.

Hlavní termíny studia

Začátek studia (Odhadovaný)

1. září 2026

Primární dokončení (Odhadovaný)

1. prosince 2027

Dokončení studie (Odhadovaný)

1. února 2028

Termíny zápisu do studia

První předloženo

31. května 2026

První předloženo, které splnilo kritéria kontroly kvality

3. června 2026

První zveřejněno (Aktuální)

8. června 2026

Aktualizace studijních záznamů

Poslední zveřejněná aktualizace (Aktuální)

8. června 2026

Odeslaná poslední aktualizace, která splnila kritéria kontroly kvality

3. června 2026

Naposledy ověřeno

1. června 2026

Více informací

Termíny související s touto studií

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Tyto informace byly beze změn načteny přímo z webu clinicaltrials.gov. Máte-li jakékoli požadavky na změnu, odstranění nebo aktualizaci podrobností studie, kontaktujte prosím register@clinicaltrials.gov. Jakmile bude změna implementována na clinicaltrials.gov, bude automaticky aktualizována i na našem webu .

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