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.
Age range
18 Years – 35 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
Upper Extremity Reaction Time
Timeframe: Baseline (72 hours before the intervention) and 72 hours after completion of the 4-week intervention.
Biceps Brachii Muscle Strength
Timeframe: Baseline (72 hours before the intervention) and 72 hours after completion of the 4-week intervention.
Hand Grip Strength
Timeframe: Baseline (72 hours before the intervention) and 72 hours after completion of the 4-week intervention.
Pinch Strength
Timeframe: Baseline (72 hours before the intervention) and 72 hours after completion of the 4-week intervention.
One-Repetition Maximum
Timeframe: Baseline (72 hours before the intervention) and 72 hours after completion of the 4-week intervention.
Muscle Oxygen Saturation
Timeframe: Baseline (72 hours before the intervention) and 72 hours after completion of the 4-week intervention.