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Symptomatic Hyperventilation in Individuals Living With Stroke

19 september 2026 uppdaterad av: Yunus Emre Tutuneken, Istinye University

Impact of Symptomatic Hyperventilation on Respiratory Parameters and Functional Capacity Among Individuals Living With Stroke: A Comparative Study

This study will investigate the effects of hyperventilation syndrome on respiratory muscle strength, respiratory muscle endurance, pulmonary functions, and functional capacity in individuals living with stroke, and in this context, stroke patients with and without hyperventilation syndrome based on Nijmegen Questionnaire scores will be compared to evaluate the relationship between symptom burden and respiratory parameters.

Studieöversikt

Studietyp

Observationell

Inskrivning (Beräknad)

92

Deltagandekriterier

Forskare letar efter personer som passar en viss beskrivning, så kallade behörighetskriterier. Några exempel på dessa kriterier är en persons allmänna hälsotillstånd eller tidigare behandlingar.

Urvalskriterier

Åldrar som är berättigade till studier

18 år till 80 år (Vuxen, Äldre vuxen)

Tar emot friska volontärer

Nej

Kön som är behöriga för studier

Allt

Testmetod

Icke-sannolikhetsprov

Studera befolkning

The study population will comprise adult individuals diagnosed with stroke (ischaemic or haemorrhagic) who are in the post-stroke period. Participants will be recruited and screened based on the Nijmegen Questionnaire score to form two distinct cohorts: individuals presenting with symptomatic hyperventilation syndrome and individuals without hyperventilation syndrome.

Beskrivning

Inclusion Criteria:

  • Individuals who will be diagnosed with a confirmed first-ever or recurrent stroke (ischaemic or haemorrhagic) verified by neuroimaging (CT or MRI).
  • Individuals who will be in the chronic or subacute post-stroke period (medically stable following stroke onset).
  • Individuals aged 18 years and older.
  • Individuals who will be classified into either the hyperventilation syndrome group based on a Nijmegen Questionnaire score of ≥23 or the control group based on a score of <23.
  • Individuals who will be able to comprehend instructions and cooperate adequately with pulmonary function tests, respiratory muscle testing, and physical performance assessments.
  • Individuals who will provide written informed consent to participate in the study.

Exclusion Criteria:

  • Individuals who will present with severe cognitive impairment, aphasia, or psychiatric disorders that will prevent reliable completion of questionnaires (such as the Nijmegen Questionnaire) or cooperation with test procedures.
  • Individuals who will have pre-existing primary chronic obstructive pulmonary disease (COPD), asthma, restrictive thoracic diseases, or other major pre-existing pulmonary pathologies that will confound pulmonary function test results.
  • Individuals who will have unstable cardiovascular conditions (e.g., recent myocardial infarction within the past 3-6 months, unstable angina pectoris, uncontrolled malignant arrhythmias, or uncontrolled severe hypertension) that will pose a risk during physical testing (such as the six-minute walk test).
  • Individuals who will have severe orthopedic, musculoskeletal, or lower extremity peripheral disorders unrelated to stroke that will independently limit functional capacity and walking distance (6MWD).
  • Individuals who will have active respiratory tract infections or acute pulmonary illnesses at the time of evaluation. Individuals who will be participating in an active pulmonary rehabilitation program or receiving respiratory muscle training concurrently.

Studieplan

Det här avsnittet ger detaljer om studieplanen, inklusive hur studien är utformad och vad studien mäter.

Hur är studien utformad?

Designdetaljer

  • Observationsmodeller: OTHER
  • Tidsperspektiv: PROSPECTIVE

Kohorter och interventioner

Grupp / Kohort
Intervention / Behandling
Hyperventilation Syndrome Group

Both groups will undergo comprehensive evaluations including pulmonary function tests (FEV1, FVC, PEF), respiratory muscle strength (PImax, PEmax), respiratory muscle endurance tests, the Nijmegen Questionnaire, and the six-minute walk test (6MWT) to assess functional capacity.

Without Hyperventilation Syndrome Group

Both groups will undergo comprehensive evaluations including pulmonary function tests (FEV1, FVC, PEF), respiratory muscle strength (PImax, PEmax), respiratory muscle endurance tests, the Nijmegen Questionnaire, and the six-minute walk test (6MWT) to assess functional capacity.

Vad mäter studien?

Primära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Change in Forced Expiratory Volume in One Second (FEV1 % predicted)
Tidsram: Measured at baseline/assessment

FEV1 percent predicted values will be measured to evaluate and compare pulmonary function between the hyperventilation syndrome group and the control group.

Measured at baseline/assessment
Maximal inspiratory pressure (PImax)
Tidsram: Measured at baseline/assessment.

Maximal inspiratory pressure will be assessed to determine respiratory muscle strength.

Measured at baseline/assessment.

Sekundära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Maximal expiratory pressure (PEmax)
Tidsram: Measured at baseline/assessment.

Maximal expiratory pressure will be assessed to determine respiratory muscle strength.

Measured at baseline/assessment.
Respiratory Muscle Endurance Score
Tidsram: Measured at baseline/assessment.

Respiratory muscle endurance scores will be recorded to evaluate breathing endurance between groups.

Measured at baseline/assessment.
Forced Vital Capacity (FVC)
Tidsram: Measured at baseline/assessment.

FVC percentage value will be analyzed to assess restrictive patterns and flow rates.

Measured at baseline/assessment.
Peak Expiratory Flow (PEF)
Tidsram: Measured at baseline/assessment.

PEF value will be analyzed to assess restrictive patterns and flow rates.

Measured at baseline/assessment.
Six-Minute Walk Distance (6MWD)
Tidsram: Measured at baseline/assessment.

The six-minute walk test will be performed to measure functional capacity distance in meters.

Measured at baseline/assessment.

Samarbetspartners och utredare

Det är här du hittar personer och organisationer som är involverade i denna studie.

Studieavstämningsdatum

Dessa datum spårar framstegen för inlämningar av studieposter och sammanfattande resultat till ClinicalTrials.gov. Studieposter och rapporterade resultat granskas av National Library of Medicine (NLM) för att säkerställa att de uppfyller specifika kvalitetskontrollstandarder innan de publiceras på den offentliga webbplatsen.

Studera stora datum

Studiestart (Beräknad)

25 september 2026

Primärt slutförande (Beräknad)

15 december 2026

Avslutad studie (Beräknad)

15 december 2026

Studieregistreringsdatum

Först inskickad

19 september 2026

Först inskickad som uppfyllde QC-kriterierna

19 september 2026

Första postat (Faktisk)

25 september 2026

Uppdateringar av studier

Senaste uppdatering publicerad (Faktisk)

25 september 2026

Senaste inskickade uppdateringen som uppfyllde QC-kriterierna

19 september 2026

Senast verifierad

1 september 2026

Mer information

Termer relaterade till denna studie

Läkemedels- och apparatinformation, studiedokument

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Nej

Studerar en amerikansk FDA-reglerad produktprodukt

Nej

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