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Post-Activation Performance Enhancement in Single and Multi-Joint Exercises With BFR and EMS in Male Volleyball Players
Sponsor: Karabuk University
Summary
Investigators used a randomized controlled crossover design to compare the effect of blood flow restriction (BFR) and electrical muscle stimulation (EMS) protocols on post-activation performance enhancement (PAPE) in multi-joint versus single-joint exercises. Participants took part in six test sessions 72 hours apart. In the BFR group, 50% of the arterial occlusion pressure (AOP) was used. In the EMS group, a 75 Hz current was applied. In the Low Resistance exercise group, only exercise was performed without any condition. Bench press (multi-joint) and triceps push-down (single-joint) exercises were used in the conditions.
Official title: Post-activation Performance Enhancement in Multi- vs Single-Joint Movements: A Comparative Study of BFR and EMS in Male Volleyball Athletes
Key Details
Gender
MALE
Age Range
18 Years - 30 Years
Study Type
INTERVENTIONAL
Enrollment
15
Start Date
2025-02-10
Completion Date
2025-10-29
Last Updated
2025-03-13
Healthy Volunteers
Yes
Interventions
Electrical Muscle Stimulation
EMS will be applied bilaterally to the wrist flexor and elbow extensor muscles using a portable EMS stimulator (Compex Rehab 400, Medicompex SA, Ecublens, Switzerland). Four 2 mm thick, self-adhesive electrodes (5x5 cm) will be placed on the superficial aspect of each muscle group. The athletes will simultaneously receive EMS intervention with a pulse frequency of 75 Hz and a duration of 400 μs (19 seconds rest between pulses) during bench press and triceps pushdown exercises. Bench press and triceps push down exercises will be performed with 30% 1TM, 30-15-15-15 repetitions and thirty seconds rest between sets.
Blood Flow Restriction
The arterial occlusion pressures (AOP) of the athletes randomized to the experimental group will be obtained automatically with the digital LED display CAC device BFR Unit (Fit Cuffs BFR Unit, Denmark). The AOP pressure device BFR Unit (Fit Cuffs BFR Unit, Denmark) will be used to apply 50% occlusion pressure during exercise. Bench press and triceps push down exercises will be performed with 30% 1TM, 30-15-15-15 repetitions and thirty seconds rest between sets.
Low-Load Resistance Exercise
Bench press and triceps pushdown exercises will be performed with 30% 1RM, 30-15-15-15 repetitions and 30 seconds rest between sets.
Locations (1)
Karabuk University
Karabük, Turkey, Turkey (Türkiye)