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Effetti dell'HIIT sul metabolismo osseo negli individui con ictus cronico

17 settembre 2026 aggiornato da: The Hong Kong Polytechnic University

Effetti dell'allenamento ad intervalli ad alta intensità sul metabolismo osseo in individui con ictus cronico: uno studio controllato randomizzato, proof-of-of-concept

Objectives: To investigate the effects of high-intensity interval training (HIIT) on musculoskeletal fitness in chronic stroke survivors.

Hypothesis to be tested: HIIT, performed on a recumbent stepper, will significantly enhance muscle power in chronic stroke survivors when compared with moderate-intensity continuous training (MICT) Design and subjects: Assessor-blinded, stratified, randomised, placebo-controlled clinical trial involving eligible 66 chronic stroke survivors.

Interventions: Participants will be randomly allocated to one of three groups: the HIIT group, the MICT group, or a stretching group (active control). Each group will attend sessions three times per week for 12 consecutive weeks, totaling 36 training sessions.

Main outcome measures: Assessments will be conducted at baseline, at mid-term of the intervention (week 6), at the end of the intervention (week 12), and at a 12-week follow-up (week 24). The primary outcome measure will be muscle power. Secondary outcome measures will include muscle strength, body composition, biomarkers, motor function, balance function, cardiorespiratory response, and psychosocial response.

Panoramica dello studio

Stato

Reclutamento

Condizioni

Intervento / Trattamento

Tipo di studio

Interventistico

Iscrizione (Stimato)

66

Fase

  • Non applicabile

Contatti e Sedi

Questa sezione fornisce i recapiti di coloro che conducono lo studio e informazioni su dove viene condotto lo studio.

Contatto studio

Backup dei contatti dello studio

Luoghi di studio

Criteri di partecipazione

I ricercatori cercano persone che corrispondano a una certa descrizione, chiamata criteri di ammissibilità. Alcuni esempi di questi criteri sono le condizioni generali di salute di una persona o trattamenti precedenti.

Criteri di ammissibilità

Età idonea allo studio

Da 50 anni a 80 anni (Adulto, Adulto più anziano)

Accetta volontari sani

No

Sessi ammissibili allo studio

Tutto

Descrizione

Inclusion criteria:

  • Men and postmenopausal women aged 50-80 years
  • 1-5 years following the first-ever stroke confirmed by magnetic resonance imaging or computed tomography
  • Able to walk 10 meters independently with or without a walking aid
  • Class I or II according to the New York Heart Association Functional Classification (no limitation or slight limitation of physical activity due to symptoms during ordinary physical activity)

Exclusion criteria:

  • Presence of other neurological comorbidities, significant liver or renal diseases, thyroid or parathyroid diseases, rheumatoid arthritis, or a fracture within the past 6 months
  • Undergoing osteoporosis treatments within the past 3 years, use of oral corticosteroids for more than 3 months within the past year, or botulinum toxin injections in the paretic lower limb within the past 6 months
  • Participation in ongoing stroke rehabilitation services or structured exercise programme
  • Cognitive or communication issues that could limit the ability to follow instructions
  • Contraindications to HIIT, graded exercise testing, or failure to pass medical clearance from a specialist

Piano di studio

Questa sezione fornisce i dettagli del piano di studio, compreso il modo in cui lo studio è progettato e ciò che lo studio sta misurando.

Come è strutturato lo studio?

Dettagli di progettazione

  • Scopo principale: Trattamento
  • Assegnazione: Randomizzato
  • Modello interventistico: Assegnazione parallela
  • Mascheramento: Separare

Armi e interventi

Gruppo di partecipanti / Arm
Intervento / Trattamento
Sperimentale: High-intensity interval training

The HIIT session will consist of a 3-minute warm-up, a 20-minute main exercise, and a 2-minute cool-down. The main exercise for HIIT will include ten high-intensity intervals, interspersed with ten low-intensity intervals.

There will be three sessions per week for 12 consecutive weeks, totaling 36 training sessions.

Comparatore attivo: Moderate-intensity continuous training

The MICT session will consist of a 3-minute warm-up, a main exercise that approximately matches the total workload of the HIIT session (lasting about 30 minutes), and a 2-minute cool-down. The intensity during the main exercise for MICT will remain below the vigorous level by progressively adjusting the workload throughout the intervention period.

There will be three sessions per week for 12 consecutive weeks, totaling 36 training sessions.

Comparatore attivo: Stretching

The stretching group will receive 25 minutes of whole-body stretching.

There will be three sessions per week for 12 consecutive weeks, totaling 36 training sessions.

Cosa sta misurando lo studio?

Misure di risultato primarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Change from Baseline in Muscle Power at Week 12
Lasso di tempo: Baseline and Week 12

Muscle power (watt) of knee extensors on both the paretic and nonparetic sides will be measured using the isokinetic dynamometer.

Change=(Week 12 Level - Baseline Level)

Baseline and Week 12

Misure di risultato secondarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Change from Baseline in Muscle Power at Week 24
Lasso di tempo: Baseline and Week 24

Muscle power (watt) of knee extensors on both the paretic and nonparetic sides will be measured using the isokinetic dynamometer. Change=(Week 24 Level - Baseline Level)

Baseline and Week 24
Change from Baseline in Muscle Strength (Nm) at Week 12
Lasso di tempo: Baseline and Week 12

Muscle strength (Nm) of knee extensors on both the paretic and nonparetic sides will be measured using the isokinetic dynamometer.

Change=(Week 12 Level - Baseline Level)

Baseline and Week 12
Change from Baseline in Muscle Strength (Nm) at Week 24
Lasso di tempo: Baseline and Week 24

Muscle strength (Nm) of knee extensors on both the paretic and nonparetic sides will be measured using the isokinetic dynamometer.

Change=(Week 24 Level - Baseline Level)

Baseline and Week 24
Change from Baseline in Muscle Strength (kg) at Week 12
Lasso di tempo: Baseline and Week 12

Handgrip strength (kg) on both sides will be measured using a handheld dynamometer.

Change=(Week 12 Level - Baseline Level)

Baseline and Week 12
Change from Baseline in Muscle Strength (kg) at Week 24
Lasso di tempo: Baseline and Week 24

Handgrip strength (kg) on both sides will be measured using a handheld dynamometer.

Change=(Week 24 Level - Baseline Level)

Baseline and Week 24
Change from Baseline in Body Composition (kg) at Week 12
Lasso di tempo: Baseline and Week 12

Whole-body skeletal muscle mass (kg), bone mineral content (kg), fat mass (kg), and segmental lean mass (kg) will be measured using bioelectrical impedance analysis (BIA).

Change=(Week 12 Level - Baseline Level)

Baseline and Week 12
Change from Baseline in Body Composition (kg) at Week 24
Lasso di tempo: Baseline and Week 24

Whole-body skeletal muscle mass (kg), bone mineral content (kg), fat mass (kg), and segmental lean mass (kg) will be measured using bioelectrical impedance analysis (BIA).

Change=(Week 24 Level - Baseline Level)

Baseline and Week 24
Change from Baseline in Body Composition (%) at Week 12
Lasso di tempo: Baseline and Week 12

Body fat percentage (%) will be measured using bioelectrical impedance analysis (BIA).

Change=(Week 12 Level - Baseline Level)

Baseline and Week 12
Change from Baseline in Body Composition (%) at Week 24
Lasso di tempo: Baseline and Week 24

Body fat percentage (%) will be measured using bioelectrical impedance analysis (BIA).

Change=(Week 24 Level - Baseline Level)

Baseline and Week 24
Change from Baseline in Biomarkers at Week 12
Lasso di tempo: Baseline and Week 12

Volume-corrected serum concentration (mg/dL) of myokines, bone markers, pro-inflammatory markers, biomarkers of oxidative stress will be measured using enzyme-linked immunosorbent assay (ELISA) kits.

Change=(Week 12 Level - Baseline Level)

Baseline and Week 12
Change from Baseline in Biomarkers at Week 6
Lasso di tempo: Baseline and Week 6

Volume-corrected serum concentration (mg/dL) of myokines, bone markers, pro-inflammatory markers, biomarkers of oxidative stress will be measured using enzyme-linked immunosorbent assay (ELISA) kits.

Change=(Week 6 Level - Baseline Level)

Baseline and Week 6
Change from Baseline in Motor Function at Week 12
Lasso di tempo: Baseline and Week 12

Fugl-Meyer Motor Assessment (FMA) will be used to assess the degree of motor recovery of the hemiparetic upper (range: 0-66) and lower limbs (range: 0-34). Higher scores are indicative of better motor recovery. Short Physical Performance Battery (SPPB) will be used to assess the physical performance, including 5-times sit-to-stand, balance tests (side-by-side-stand, semi-tandem stand, and tandem stand), and gait speed.

Change=(Week 12 Score- Baseline Score)

Baseline and Week 12
Change from Baseline in Motor Function at Week 24
Lasso di tempo: Baseline and Week 24

Fugl-Meyer Motor Assessment (FMA) will be used to assess the degree of motor recovery of the hemiparetic upper (range: 0-66) and lower limbs (range: 0-34). Higher scores are indicative of better motor recovery. Short Physical Performance Battery (SPPB) will be used to assess the physical performance, including 5-times sit-to-stand, balance tests (side-by-side-stand, semi-tandem stand, and tandem stand), and gait speed.

Change=(Week 24 Score- Baseline Score)

Baseline and Week 24
Change from Baseline in Motor Function (meters) at Week 12
Lasso di tempo: Baseline and Week 12

The 6-minute walk test (6MWT) will be used to measure walking endurance and capacity. The total distance walked in meters during the test will be recorded.

Change=(Week 12 distance - Baseline distance)

Baseline and Week 12
Change from Baseline in Motor Function (meters) at Week 24
Lasso di tempo: Baseline and Week 24

The 6-minute walk test (6MWT) will be used to measure walking endurance and capacity. The total distance walked in meters during the test will be recorded.

Change=(Week 24 distance - Baseline distance)

Baseline and Week 24
Change from Baseline in Balance Function at Week 12
Lasso di tempo: Baseline and Week 12

Balance performance will be assessed using the Mini Balance Evaluation Systems Test (range: 0-28). Higher scores are indicative of better balance performance. Fear of falling will be assessed using the Chinese version of the Activities-Specific Balance Confidence Scale (range: 0-100). Higher scores are indicative of higher balance confidence.

Change=(Week 12 Score- Baseline Score)

Baseline and Week 12
Change from Baseline in Balance Function at Week 24
Lasso di tempo: Baseline and Week 24

Balance performance will be assessed using the Mini Balance Evaluation Systems Test (range: 0-28). Higher scores are indicative of better balance performance. Fear of falling will be assessed using the Chinese version of the Activities-Specific Balance Confidence Scale (range: 0-100). Higher scores are indicative of higher balance confidence.

Change=(Week 24 Score- Baseline Score)

Baseline and Week 24
Change from Baseline in Cardiopulmonary Response at Week 12
Lasso di tempo: Baseline and Week 12

Peak oxygen uptake (VO2peak) will be measured using a graded exercise test (GXT). The GXT will be conducted following a well-validated protocol that on a whole-body recumbent stepper to assess cardiopulmonary function in stroke patients.

Change=(Week 12 VO2peak - Baseline VO2peak)

Baseline and Week 12
Change from Baseline in Cardiopulmonary Response at Week 24
Lasso di tempo: Baseline and Week 24

Peak oxygen uptake (VO2peak) will be measured using a graded exercise test (GXT). The GXT will be conducted following a well-validated protocol that on a whole-body recumbent stepper to assess cardiopulmonary function in stroke patients.

Change=(Week 24 VO2peak - Baseline VO2peak)

Baseline and Week 24
Change from Baseline in Psychosocial Responses at Week 12
Lasso di tempo: Baseline and Week 12

Post-stroke fatigue will be assessed using the Fatigue Severity Scale (range: 1-7). Higher scores are indicative of more severe fatigue.

Health-related quality of life will be assessed using 12-Item Short Form Health Survey (range: 0-100). Higher scores are indicative of better quality of life.

Exercise enjoyment will be assessed by the Physical Activity Enjoyment Scale and Behavioural Regulation Exercise Questionnaire-3 (range: 0-400). Higher scores indicate a higher exercise enjoyment level.

Motivation for exercise will be assessed using the Behavioural Regulation Exercise Questionnaire-3 (range: 0-96). Higher scores indicate more motivation to exercise. A semi-structured interview will be additionally conducted at the end of the intervention (week 12) to explore the experiences of HIIT in stroke patients.

Change=(Week 12 Score - Baseline Score)

Baseline and Week 12
Change from Baseline in Psychosocial Responses at Week 24
Lasso di tempo: Baseline and Week 24

Post-stroke fatigue will be assessed using the Fatigue Severity Scale (range: 1-7). Higher scores are indicative of more severe fatigue.

Health-related quality of life will be assessed using 12-Item Short Form Health Survey (range: 0-100). Higher scores are indicative of better quality of life.

Exercise enjoyment will be assessed by the Physical Activity Enjoyment Scale and Behavioural Regulation Exercise Questionnaire-3 (range: 0-400). Higher scores indicate a higher exercise enjoyment level.

Motivation for exercise will be assessed using the Behavioural Regulation Exercise Questionnaire-3 (range: 0-96). Higher scores indicate more motivation to exercise. A semi-structured interview will be additionally conducted at the end of the intervention (week 12) to explore the experiences of HIIT in stroke patients.

Change=(Week 24 Score - Baseline Score)

Baseline and Week 24

Collaboratori e investigatori

Qui è dove troverai le persone e le organizzazioni coinvolte in questo studio.

Sponsor

Studiare le date dei record

Queste date tengono traccia dell'avanzamento della registrazione dello studio e dell'invio dei risultati di sintesi a ClinicalTrials.gov. I record degli studi e i risultati riportati vengono esaminati dalla National Library of Medicine (NLM) per assicurarsi che soddisfino specifici standard di controllo della qualità prima di essere pubblicati sul sito Web pubblico.

Studia le date principali

Inizio studio (Effettivo)

20 agosto 2024

Completamento primario (Stimato)

5 agosto 2027

Completamento dello studio (Stimato)

5 agosto 2027

Date di iscrizione allo studio

Primo inviato

30 luglio 2024

Primo inviato che soddisfa i criteri di controllo qualità

14 agosto 2024

Primo Inserito (Effettivo)

15 agosto 2024

Aggiornamenti dei record di studio

Ultimo aggiornamento pubblicato (Effettivo)

21 settembre 2026

Ultimo aggiornamento inviato che soddisfa i criteri QC

17 settembre 2026

Ultimo verificato

1 settembre 2025

Maggiori informazioni

Termini relativi a questo studio

Altri numeri di identificazione dello studio

  • HSEARS20230720002

Informazioni su farmaci e dispositivi, documenti di studio

Studia un prodotto farmaceutico regolamentato dalla FDA degli Stati Uniti

No

Studia un dispositivo regolamentato dalla FDA degli Stati Uniti

No

Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .