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Post-Activation Performance Enhancement in Single and Multi-Joint Exercises With BFR and EMS in Male Volleyball Players

NCT06874829 · Status: ACTIVE_NOT_RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 15

Last updated 2025-03-13

No results posted yet for this study

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.

Conditions

  • Volleyball Players
  • Post Activation Potentiation
  • Muscle Strength

Interventions

OTHER

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.

OTHER

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.

OTHER

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.

Sponsors & Collaborators

  • Karabuk University

    lead OTHER

Principal Investigators

  • Neslihan AKCAY, Doctorate · Karabuk University

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
TRIPLE
Model
CROSSOVER

Eligibility

Min Age
18 Years
Max Age
30 Years
Sex
MALE
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2025-02-10
Primary Completion
2025-08-09
Completion
2025-10-29

Countries

  • Turkey (Türkiye)

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT06874829 on ClinicalTrials.gov