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CompletedNCT07190924Updated Sep 24, 2025

Inflammatory Responses After CrossFit and Resistance Trainings in Untrained Subjects

An interventional study of 12 week training and 12 week training in Inflammation, Oxidative Stress and Plasma Volume, sponsored by Habil Hamdouni. Completed at 1 site in Tunisia. Per ClinicalTrials.gov, last updated 2025-09-24.

Sponsored by Habil Hamdouni · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Registered 3 years 10 months after the study started (first participant enrolled Nov 2021, registered Sep 2025).
Phase
Not applicable
Study type
Interventional
Enrollment
24
Allocation
Randomized
Sex
All
01

Study summary

Considering the remarkable increase of the fitness programs, the purpose of this study was to assess and compare the effect of Crossfit (CF) and periodized resistance (RT) trainings on inflammatory/oxidative responses in untrained individuals.

Twenty-four participants (20 men and 4 women, age= 25.7 ± 2.2 years, BMI= 25.7 kg.m-2) were randomly assigned into 12 weeks of these trainings with a rate of five sessions/week. Before and after intervention, participants anthropometric data and graded exercise tests were performed. Before (pre), immediately after (post) and 60min after test (p60) a 20mL venous blood sample were drawn for a later measure of c-reactive protein (CRP), interleukin 1 beta (IL-1ß), tumor necrosis factor alpha (TNF-α), interleukin 6 (IL-6), interleukin 10 (IL-10), thiobarbituric acid reactive substances (TBARS), antioxidant enzymes catalase (CAT) and glutathione peroxidase (GPx).

02

Conditions studied

  • Inflammation
  • Oxidative Stress
  • Plasma Volume
  • Hormones

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03

In context

Inflammation

3,439 studies on the registry are indexed under Inflammation; 629 are open to participants now.

This study's enrollment of 24 is below the median of 50 across 2,437 interventional studies indexed under Inflammation.

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Lead sponsor

Habil Hamdouni is the lead sponsor of 2 studies on the registry; none are open to participants now.

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

04

Who can participate

Ages eligible
Child (0–17), Adult (18–64), Older adult (65+)
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  • Participants must be non-smokers,
  • Participants should not suffer from respiratory issues
  • Participants should have healthy kidney and liver
  • Participants have no metabolic and neurological disorders

Exclusion criteria

Exclusion Criteria:

  • The use of medications during the previous 4 weeks
  • Consumption of any product related to anti-inflammatory/oxidative supplements
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
24 participants (actual)

Study arms

  • Experimental
    CrossFit

    High intensity functional training

    Behavioral: 12 week training

  • Experimental
    Resistance

    Periodized resistance training

    Behavioral: 12 week training

Interventions

  • Behavioral12 week training

    Anti-inflammatory and oxidative environment following 12-weeks of CF training by evaluating inflammatory markers and oxidative precursors in untrained participants

  • Behavioral12 week training

    Anti-inflammatory and oxidative environment following 12-weeks of resistance training by evaluating inflammatory markers and oxidative precursors in untrained participants

06

What researchers measure

Primary outcomes

  1. Inflammatory marker

    c-reactive protein (CRP),

    Time frame: Participants data were performed in one day before beginning the 12 week intervention and one day after the last session

  2. Inflammatory marker

    interleukin 1 beta (IL-1ß)

    Time frame: Participants data were performed in one day before beginning the 12 week intervention and one day after the last session

  3. Inflammatory marker

    tumor necrosis factor alpha (TNF-α)

    Time frame: Participants data were performed in one day before beginning the 12 week intervention and one day after the last session

  4. Inflammatory marker

    interleukin 6 (IL-6)

    Time frame: Participants data were performed in one day before beginning the 12 week intervention and one day after the last session

  5. Inflammatory marker

    interleukin 10 (IL-10)

    Time frame: Participants data were performed in one day before beginning the 12 week intervention and one day after the last session

  6. Oxidative stress

    thiobarbituric acid reactive substances (TBARS)

    Time frame: Participants data were performed in one day before beginning the 12 week intervention and one day after the last session

  7. Oxidative stress

    antioxidant enzymes catalase (CAT)

    Time frame: Participants data were performed in one day before beginning the 12 week intervention and one day after the last session

  8. Oxidative stress

    glutathione peroxidase (GPx)

    Time frame: Participants data were performed in one day before beginning the 12 week intervention and one day after the last session

07

Study locations

1 site
  • Institut Supérieur du Sport et de l'Education Physique de Ksar-Saïd
    Aryanah, Ariana Governorate 2073, Tunisia
08

References and documents

Individual participant data

Plan to share: Undecided — Under negotation

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 Sep 24, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07190924
Lead sponsor
Habil Hamdouni
Responsible party
Habil Hamdouni (Doctor, Institut Supérieur du Sport et de l'Education Physique de Ksar-Saïd) — Sponsor-investigator
First posted
Sep 24, 2025
Start date
Nov 8, 2021
Primary completion
Feb 8, 2022
Completion
Apr 17, 2022
Last update
Sep 24, 2025

Oversight

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

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This study is completed, as verified in Sep 2025. You cannot join it, but the record below documents what was studied.

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