- ICH GCP
- Yhdysvaltain kliinisten tutkimusten rekisteri
- Kliininen tutkimus 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.
Tutkimuksen yleiskatsaus
Tila
Ehdot
Interventio / Hoito
Opintotyyppi
Ilmoittautuminen (Arvioitu)
Vaihe
- Ei sovellettavissa
Yhteystiedot ja paikat
Opiskelupaikat
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Karabük Province
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Karabük, Karabük Province, Turkki (Türkiye), 78050
- Karabuk University
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Osallistumiskriteerit
Kelpoisuusvaatimukset
Opintokelpoiset iät
- Aikuinen
Hyväksyy terveitä vapaaehtoisia
Kuvaus
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.
Opintosuunnitelma
Miten tutkimus on suunniteltu?
Suunnittelun yksityiskohdat
- Ensisijainen käyttötarkoitus: Muut
- Jako: Satunnaistettu
- Inventiomalli: Rinnakkaistehtävä
- Naamiointi: Ei mitään (avoin tarra)
Aseet ja interventiot
Osallistujaryhmä / Arm |
Interventio / Hoito |
|---|---|
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Active Comparator: 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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Active Comparator: 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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Mitä tutkimuksessa mitataan?
Ensisijaiset tulostoimenpiteet
Tulosmittaus |
Toimenpiteen kuvaus |
Aikaikkuna |
|---|---|---|
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Upper Extremity Reaction Time
Aikaikkuna: 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
Aikaikkuna: 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
Aikaikkuna: 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
Aikaikkuna: 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
Aikaikkuna: 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
Aikaikkuna: 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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Yhteistyökumppanit ja tutkijat
Sponsori
Julkaisuja ja hyödyllisiä linkkejä
Opintojen ennätyspäivät
Opi tärkeimmät päivämäärät
Opiskelun aloitus (Arvioitu)
Ensisijainen valmistuminen (Arvioitu)
Opintojen valmistuminen (Arvioitu)
Opintoihin ilmoittautumispäivät
Ensimmäinen lähetetty
Ensimmäinen toimitettu, joka täytti QC-kriteerit
Ensimmäinen Lähetetty (Todellinen)
Tutkimustietojen päivitykset
Viimeisin päivitys julkaistu (Todellinen)
Viimeisin lähetetty päivitys, joka täytti QC-kriteerit
Viimeksi vahvistettu
Lisää tietoa
Tähän tutkimukseen liittyvät termit
Muita asiaankuuluvia MeSH-ehtoja
Muut tutkimustunnusnumerot
- blood flow restriction
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