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Active, not recruitingNCT07189130Updated Dec 16, 2025

The Acute Effect of Different Resistance Exercise Loads on Irisin and Brain-derived Neurotrophic Factor in Blood Serum and Plasma

An interventional study of Exercise: 80% 1 RM with 2 minutes break and Exercise: 80% 1RM with1 minute break in BDNF, Irisin and Resistance Exercise, sponsored by University of Ljubljana. Active, not recruiting at 1 site in Slovenia. Open to male participants aged 18 Years to 30 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2025-12-16.

Sponsored by University of Ljubljana · Not applicable, Interventional, and Basic science

From the registry’s dates

  • Registered 3 months after the study started (first participant enrolled May 2025, registered Aug 2025).
Phase
Not applicable
Study type
Interventional
Enrollment
24
Allocation
Not applicable
Ages
18 Years to 30 Years
Sex
Male
01

Study summary

The aim of this study is to investigate different resistance training loads on BNDF and irisin levels in platelets, blood serum and plasma.

Read the detailed description

In this study, the investigators will examine how three resistance training protocols acutely affect BDNF levels (in serum, plasma, platelet count, and BDNF per platelet) and irisin levels in blood (plasma). The resistance training protocols will differ in intensity, rest intervals between sets and repetition execution. Blood samples will be collected from participants at four time points: before the start of the protocol, 5 minutes after completion of the final set, 1 hour after completion of the final set, and 3 hours after completion of the final set. In addition, blood lactate levels will be monitored at the same time points. Heart rate will also be recorded (immediately before the start of the protocol and 30 seconds after completion of the final set). A control protocol will also be implemented, in which blood will be collected at the same time points. Data will be collected across five visits to the kinesiology laboratory at the University of Ljubljana, Faculty of Sport. Each visit will last approximately 4 hours, except for the first visit where 1RM will be measured.

02

Conditions studied

  • BDNF
  • Irisin
  • Resistance Exercise
  • Stroop Test
  • Lactate
  • Healthy Young Adult
03

In context

Lead sponsor

University of Ljubljana is the lead sponsor of 42 studies on the registry; 12 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 30 Years
Sexes eligible
Male
Accepts healthy volunteers
Yes

Inclusion criteria

  • males between 18 and 30 years
  • moderate level of physical activity assessed with IPAQ

Exclusion criteria

Exclusion Criteria:

  • injuries
  • cardiovascular diseases
  • respiratory diseases
  • psychiatric diseases
  • metabolic diseases
  • other neurodegenerative diseases
05

Study design

Phase
Not applicable
Primary purpose
Basic science
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
24 participants (estimated)

Study arms

  • Experimental
    Intervention: participants going through exercising or control

    All participants will do 1 control protocol and 3 resistance exercises protocols. Order of protocols will be randomized.

    Other: Exercise: 80% 1 RM with 2 minutes break · Other: Exercise: 80% 1RM with1 minute break · Other: Exercise: accenuated eccentric exercise · Other: Control

Interventions

  • OtherExercise: 80% 1 RM with 2 minutes break

    Participant will do resistance exercise at 80% 1RM with 2 minutes break, 4 sets of each exercise. Included exercises are lat pull, bench press and leg press.

    Also known as: resistance exercise

  • OtherExercise: 80% 1RM with1 minute break

    Participant will do resistance exercise at 80% 1RM with 1 minutes break, 4 sets of each exercise. Included exercises are lat pull, bench press and leg press.

    Also known as: resistance exercise

  • OtherExercise: accenuated eccentric exercise

    Participant will do accenuated eccentric resistance exercise at 80% 1RM in concetric part of movement and 110% 1RM in eccentric part of movement with 2 minutes break, 4 sets of each exercise. Included exercises are lat pull, bench press and leg press.

  • OtherControl

    Timeline of events will be same as in exercise protocol (blood withdrawal and Stroop test), except participants will not do any kind of exercise protocol, instead they will be seating.

06

What researchers measure

Primary outcomes

  1. plasma BDNF

    BDNF will be determined in blood plasma with ELISA kit.

    Time frame: pre, 5 minutes post exercise, 1 hour post exercise, 3 hours post exercise.

  2. Irisin

    Irisin will be measured in blood plasma.

    Time frame: pre, 5 minutes post exercise, 1 hour post exercise, 3 hours post exercise.

  3. serum BDNF

    BDNF will be determined in blood serum with ELISA kit.

    Time frame: pre, 5 minutes post exercise, 1 hour post exercise, 3 hours post exercise.

  4. Platelet count

    Platelet count in blood will be done.

    Time frame: pre, 5 minutes post exercise, 1 hour post exercise, 3 hours post exercise.

  5. BDNF per platelet

    The amount of BDNF per platelet will be calculated.

    Time frame: pre, 5 minutes post exercise, 1 hour post exercise, 3 hours post exercise.

Secondary outcomes

  1. Lactate

    Lactate will be measured in blood.

    Time frame: pre, 5 minutes post exercise, 1 hour post exercise, 3 hours post exercise.

  2. Stroop test

    Stroop test will be used as an assessment of cognitive functions. The number of read word will be assessed.

    Time frame: pre, 15 minutes post exercise.

07

Study locations

1 site
  • University of Ljubljana, Faculty of Sport
    Ljubljana, 1000, Slovenia
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Dec 16, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT07189130
Lead sponsor
University of Ljubljana
Responsible party
Sponsor
First posted
Sep 23, 2025
Start date
May 12, 2025
Primary completion
Nov 25, 2025
Completion
Sep 2026 (estimated)
Last update
Dec 16, 2025

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is active, not recruiting, as verified in Dec 2025. You cannot join it, but the record below documents what was studied.

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