CClinicalTrials.gg
CompletedNCT04157556Updated Apr 30, 2020

The Effect of Maximal Exercise on MMP9 and TIMP1 and The Role of MMP9 -1562 C/T and TIMP1 372 T/C Polymorphisms

An interventional study of Yo-Yo Intermittent Recovery Test Level 1 in MMP9, TIMP1 and MMP9 -1562 C/T, sponsored by Dokuz Eylul University. Completed at 1 site in Turkey. Open to male participants aged 18 Years to 35 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2020-04-30.

Sponsored by Dokuz Eylul University · Not applicable, Interventional, and Basic science

Phase
Not applicable
Study type
Interventional
Enrollment
86
Allocation
Non-randomized
Ages
18 Years to 35 Years
Sex
Male
01

Study summary

Matrix metalloproteinases (MMPs) play a critical role in the remodeling and regeneration of skeletal muscle. Studies which investigate exercise and effects of MMPs and tissue inhibitors of matrix metalloproteinases (TIMPs) are contradictory. Also the role of MMP9 -1562 C/T and TIMP1 372 T/C polymorphisms on exercise are unclear. In accordance with this conditions the hypothesis of the study are as follows:

  1. Levels of basal serum MMP9 and TIMP1 are different between athletes (volleyball, basketball, handball) and sedentary people.
  2. Levels of serum MMP9 and TIMP1 response to maximal exercise are different between athletes (volleyball, basketball, handball) and sedentary people .
  3. Relationship between levels of serum MMP9 and TIMP1 response to maximal exercise are different between athletes (volleyball, basketball, handball) and sedentary people.
  4. Levels of basal serum MMP9 and TIMP1 are related to MMP9 -1562 C/T and TIMP1 372 T/C polymorphisms.
  5. Relationship between levels of serum MMP9 and TIMP1 response to maximal exercise and MMP9 -1562 C/T and TIMP1 372 T/C polymorphisms are different between athletes (volleyball, basketball, handball) and sedentary people.
02

Conditions studied

  • MMP9
  • TIMP1
  • MMP9 -1562 C/T
  • TIMP1 372 T/C
03

In context

Lead sponsor

Dokuz Eylul University is the lead sponsor of 252 studies on the registry; 32 are open to participants now.

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

04

Who can participate

Ages eligible
18 Years to 35 Years
Sexes eligible
Male
Accepts healthy volunteers
Yes

Inclusion criteria

Group of athletes:

  • Male basketball players who have been training regularly for at least last 3 months.
  • Male volleyball players who have been training regularly for at least last 3 months.
  • Male handball players who have been training regularly for at least last 3 months.

Group of sedentary people:

  • Male individuals with similar physical characteristics to the group of athletes
  • Male individuals who have not exercise regularly for at least last 3 months.

Exclusion criteria

Exclusion Criteria(For two groups):

  • Smoking regularly
  • Drinking alcohol regularly
  • Using drug and antioxidant substance
  • Being obese,
  • Being sick or having disability
05

Study design

Phase
Not applicable
Primary purpose
Basic science
Allocation
Non-randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
86 participants (actual)

Study arms

  • Experimental
    Group of athletes

    Age: 18-35 Gender: Male Basketball, volleyball, handball players who have been training regularly for at least last 3 months.

    Other: Yo-Yo Intermittent Recovery Test Level 1

  • Experimental
    Group of sedentary people

    Age: 18-35 Gender: Male Individuals with similar physical characteristics to the group of athletes and who have not exercise regularly for at least last 3 months.

    Other: Yo-Yo Intermittent Recovery Test Level 1

Interventions

  • OtherYo-Yo Intermittent Recovery Test Level 1

    The test is a standard test battery with progressively increasing speeds. After every 40-m run (2x20 m), active rest is performed by walking or jogging at a distance of 10 m (2x5 m). for 10 seconds. Participants are trying to adjust their speed according to incoming audio signals.The test is terminated when the participants can not reach the signal twice. The test ends in 10-20 minutes depending on the level of participants. Reference Bangsbo, J., Iaia, F. M., \& Krustrup, P. (2008). The Yo-Yo intermittent recovery test. Sports medicine, 38(1), 37-51. Krustrup, P., Mohr, M., Amstrup, T., Rysgaard, T., Johansen, J., Steensberg, A., ... \& Bangsbo, J. (2003). The yo-yo intermittent recovery test: physiological response, reliability, and validity. Medicine \& Science in Sports \& Exercise, 35(4), 697-705.

06

What researchers measure

Primary outcomes

  1. Level of MMP9 and TIMP1

    The effect of acute maximal exercise on serum MMP9 and TIMP1 levels in athletes and sedentary people.

    Time frame: Yo-Yo Intermittent Recovery Test level 1 (the test performed until the subject is exhausted, the test lasts 10-20 minutes according to endurance capacity of the participants)

  2. MMP9 -1562 C/T, TIMP1 372 T/C polymorphisms

    The role of MMP9 -1562 C/T and TIMP1 372 T/C polymorphisms on the effect of acute maximal exercise on serum MMP9 and TIMP1 in athletes and sedentary people.

    Time frame: Yo-Yo Intermittent Recovery Test level 1 (the test performed until the subject is exhausted, the test lasts 10-20 minutes according to endurance capacity of the participants)

Secondary outcomes

  1. Level of indicators of muscle damage and inflammation and oxidative stress

    The relationship between primary outcome measures and indicators of muscle damage, inflammation and oxidative stress. Indicators to be determined: creatine kinase (CK), aspartate aminotransferase (AST), alanine aminotransferase (ALT), Interleukin-6 (IL-6), C- reactive protein (CRP), total antioxidant status (TAS), total oxidant status (TOS), nitric oxide (NO)

    Time frame: Yo-Yo Intermittent Recovery Test level 1 (the test performed until the subject is exhausted, the test lasts 10-20 minutes according to endurance capacity of the participants)

  2. Level of blood lipids and lipoproteins, glucose, urea, creatinine, hemogram

    The relationship between primary outcome measures and blood lipids and lipoproteins, glucose, urea, creatinine and hemogram

    Time frame: Yo-Yo Intermittent Recovery Test level 1 (the test performed until the subject is exhausted, the test lasts 10-20 minutes according to endurance capacity of the participants)

07

Study locations

1 site
  • Ege University Faculty of Sports Science
    İzmir, Turkey
08

References and documents

Individual participant data

Plan to share: Undecided

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Apr 30, 2020, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04157556
Lead sponsor
Dokuz Eylul University
Collaborators
Ege University
Responsible party
Merve Koca Kosova (research assistant, Dokuz Eylul University) — Principal investigator
First posted
Nov 8, 2019
Start date
Nov 11, 2019
Primary completion
Jan 3, 2020
Completion
Apr 28, 2020
Last update
Apr 30, 2020

Study contacts

Faruk Turgay, associate professor
study chair · Ege University, Faculty of Sports Science

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 completed, as verified in Apr 2020. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion