- ICH GCP
- Registr klinických studií v USA
- Klinická studie NCT07710859
Concentric vs Eccentric Exercise in Blood Flow Restriction Training
Comparison of the Effectiveness of Concentric and Eccentric Exercises in Blood Flow Restriction Training
This randomized controlled trial will investigate the effects of blood flow restriction (BFR) training combined with concentric or eccentric exercise on upper extremity reaction speed, muscle strength, and muscle oxygenation in healthy adults aged 18-35 years. A total of 34 participants will be randomly allocated to either a BFR combined with concentric exercise group (n=17) or a BFR combined with eccentric exercise group (n=17).
Before the intervention, maximal muscle strength will be determined using a one-repetition maximum (1RM) test for the dominant elbow flexor muscles. Upper extremity reaction speed will be assessed using the Nelson Hand Reaction Test. Biceps brachii muscle strength will be measured with a digital dynamometer, and muscle oxygenation will be evaluated using a near-infrared spectroscopy (NIRS) device. All outcome measures will be obtained 72 hours before the intervention and repeated 72 hours after completion of the training program by the same investigator.
The findings of this study will contribute to understanding whether concentric or eccentric exercise combined with BFR training provides greater improvements in upper extremity reaction speed, muscle strength, and muscle oxygenation in healthy individuals.
Přehled studie
Postavení
Podmínky
Intervence / Léčba
Typ studie
Zápis (Odhadovaný)
Fáze
- Nelze použít
Kontakty a umístění
Studijní místa
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Karabük Province
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Karabük, Karabük Province, Turecko (Türkiye), 78050
- Karabuk university
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Kritéria účasti
Kritéria způsobilosti
Věk způsobilý ke studiu
- Dospělý
Přijímá zdravé dobrovolníky
Popis
Inclusion Criteria:
- Being between 18 and 35 years of age
- Physically inactive or minimally active individuals (International Physical Activity Questionnaire-Short Form. IPAQ-CF, <3000 MET-min/week)
Exclusion Criteria:
- Having a history of musculoskeletal surgery within the last 6 months
- Individuals with a history of orthopedic surgery within the last 6 months
- Having high systolic blood pressure (≥140 mmHg)
- Having a current history of cardiovascular disease
- Participants who did not volunteer to participate in the study and did not provide informed consent were excluded from the study.
Studijní plán
Jak je studie koncipována?
Detaily designu
- Primární účel: Jiný
- Přidělení: Randomizované
- Intervenční model: Paralelní přiřazení
- Maskování: Žádné (otevřený štítek)
Zbraně a zásahy
Skupina účastníků / Arm |
Intervence / Léčba |
|---|---|
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Aktivní komparátor: CONCENTRIC GROUP
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Participants assigned to this group will perform blood flow restriction (BFR) training combined with concentric elbow flexion exercises using the dominant upper extremity.
Training will be performed three times per week for four weeks (12 sessions).
Exercises will be performed at 20-30% of one-repetition maximum (1RM) using a pneumatic cuff applied to the proximal upper arm.
The cuff pressure will be set at 50% of the individual's arterial occlusion pressure.
Each session will consist of four sets (30-15-15-15 repetitions) with 30-second rest intervals between sets.
Participants assigned to this group will perform blood flow restriction (BFR) training combined with eccentric elbow flexion exercises using the dominant upper extremity.
Training will be performed three times per week for four weeks (12 sessions).
Exercises will be performed at 20-30% of one-repetition maximum (1RM) using a pneumatic cuff applied to the proximal upper arm.
The cuff pressure will be set at 50% of the individual's arterial occlusion pressure.
Each session will consist of four sets (30-15-15-15 repetitions) with 30-second rest intervals between sets.
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Aktivní komparátor: ECCENTRIC GROUP
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Participants assigned to this group will perform blood flow restriction (BFR) training combined with concentric elbow flexion exercises using the dominant upper extremity.
Training will be performed three times per week for four weeks (12 sessions).
Exercises will be performed at 20-30% of one-repetition maximum (1RM) using a pneumatic cuff applied to the proximal upper arm.
The cuff pressure will be set at 50% of the individual's arterial occlusion pressure.
Each session will consist of four sets (30-15-15-15 repetitions) with 30-second rest intervals between sets.
Participants assigned to this group will perform blood flow restriction (BFR) training combined with eccentric elbow flexion exercises using the dominant upper extremity.
Training will be performed three times per week for four weeks (12 sessions).
Exercises will be performed at 20-30% of one-repetition maximum (1RM) using a pneumatic cuff applied to the proximal upper arm.
The cuff pressure will be set at 50% of the individual's arterial occlusion pressure.
Each session will consist of four sets (30-15-15-15 repetitions) with 30-second rest intervals between sets.
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Co je měření studie?
Primární výstupní opatření
Měření výsledku |
Popis opatření |
Časové okno |
|---|---|---|
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Upper Extremity Reaction Time
Časové okno: Baseline (72 hours before the intervention) and 72 hours after completion of the 4-week intervention.
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Upper extremity reaction time will be assessed using the Nelson Hand Reaction Test.
Participants will complete five trials, the highest and lowest values will be discarded, and the mean of the remaining three trials will be used for analysis.
Reaction time will be calculated from the ruler drop distance using the standard equation.
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Baseline (72 hours before the intervention) and 72 hours after completion of the 4-week intervention.
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Biceps Brachii Muscle Strength
Časové okno: Baseline (72 hours before the intervention) and 72 hours after completion of the 4-week intervention.
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Biceps brachii muscle strength will be measured using an ActivForce 2 digital dynamometer.
Three maximal isometric contractions will be performed with 30-second rest intervals, and the highest value will be used for analysis.
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Baseline (72 hours before the intervention) and 72 hours after completion of the 4-week intervention.
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Hand Grip Strength
Časové okno: Baseline (72 hours before the intervention) and 72 hours after completion of the 4-week intervention.
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Hand grip strength will be measured using a hydraulic hand dynamometer.
Participants will perform three maximal contractions with 30-second rest intervals, and the highest value will be recorded for analysis.
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Baseline (72 hours before the intervention) and 72 hours after completion of the 4-week intervention.
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Pinch Strength
Časové okno: Baseline (72 hours before the intervention) and 72 hours after completion of the 4-week intervention.
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Pinch strength will be assessed using a pinch dynamometer.
Three maximal trials will be performed with 30-second rest intervals, and the highest value will be used for analysis.
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Baseline (72 hours before the intervention) and 72 hours after completion of the 4-week intervention.
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One-Repetition Maximum
Časové okno: Baseline (72 hours before the intervention) and 72 hours after completion of the 4-week intervention.
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Maximum muscle strength of the elbow flexors will be estimated using the Epley equation based on the maximum number of repetitions completed with a fixed load (2 kg for females and 5 kg for males).
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Baseline (72 hours before the intervention) and 72 hours after completion of the 4-week intervention.
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Muscle Oxygen Saturation
Časové okno: Baseline (72 hours before the intervention) and 72 hours after completion of the 4-week intervention.
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Muscle oxygen saturation (SmO₂) of the biceps brachii will be measured using a MOXY near-infrared spectroscopy (NIRS) device.
Baseline SmO₂ will be recorded before the 1RM test, continuous SmO₂ values will be monitored throughout the test, and recovery values will be recorded for 2-3 minutes after the test.
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Baseline (72 hours before the intervention) and 72 hours after completion of the 4-week intervention.
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Spolupracovníci a vyšetřovatelé
Sponzor
Publikace a užitečné odkazy
Termíny studijních záznamů
Hlavní termíny studia
Začátek studia (Odhadovaný)
Primární dokončení (Odhadovaný)
Dokončení studie (Odhadovaný)
Termíny zápisu do studia
První předloženo
První předloženo, které splnilo kritéria kontroly kvality
První zveřejněno (Aktuální)
Aktualizace studijních záznamů
Poslední zveřejněná aktualizace (Aktuální)
Odeslaná poslední aktualizace, která splnila kritéria kontroly kvality
Naposledy ověřeno
Více informací
Termíny související s touto studií
Další relevantní podmínky MeSH
Další identifikační čísla studie
- blood flow restriction
Plán pro data jednotlivých účastníků (IPD)
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