NCT05218798

Brief Summary

The aim of the proposed project is to investigate the reliability, validity, and usefulness of the 30-15 intermittent fitness test in the Slovenian Armed Forces. We will compare the results obtained from a continuous treadmill running test, 2-mile run test, and 30-15IFT.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
34

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Feb 2022

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

January 19, 2022

Completed
13 days until next milestone

First Posted

Study publicly available on registry

February 1, 2022

Completed
13 days until next milestone

Study Start

First participant enrolled

February 14, 2022

Completed
4 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 1, 2022

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2022

Completed
Last Updated

January 11, 2024

Status Verified

January 1, 2024

Enrollment Period

4 months

First QC Date

January 19, 2022

Last Update Submit

January 9, 2024

Conditions

Outcome Measures

Primary Outcomes (1)

  • Maxima Oxygen Consumption (Vo2max)

    Measure of maximal aerobic capacity (Vo2max)

    30 minutes

Secondary Outcomes (5)

  • Maximal Running Speed

    30 minutes

  • Tensiomyography (TMG)

    10 minutes

  • Jumping ability

    10 minutes

  • D2 test

    5 minutes

  • Stroop test

    2 minutes

Study Arms (4)

Continous Treadmill Running Test

ACTIVE COMPARATOR

One of the four testing conditions the subject will be allocated to is a Continous Treadmill Running Test. Vo2max will be measured by using A K4 b2 a portable gas analyzer (COSMED, Italy). The device provides reliable values for oxygen uptake (VO2), carbon dioxide production (VCO2), and pulmonary ventilation (VE) breath by breath. In addition, blood samples (20 μL) were collected from the earlobe for both tests (before, immediately after, 3 min after, and 5 min after the test) and the samples will be analyzed for blood lactate concentration (\[LA-\]).

Diagnostic Test: Cardio Respiratory Fitness testing

Continous 2-mile run test

ACTIVE COMPARATOR

One of the four testing conditions the subject will be allocated to is a Continous 2-mile run test. Vo2max will be measured by using A K4 b2 a portable gas analyzer (COSMED, Italy). The device provides reliable values for oxygen uptake (VO2), carbon dioxide production (VCO2), and pulmonary ventilation (VE) breath by breath. In addition, blood samples (20 μL) were collected from the earlobe for both tests (before, immediately after, 3 min after, and 5 min after the test) and the samples will be analyzed for blood lactate concentration (\[LA-\]).

Diagnostic Test: Cardio Respiratory Fitness testing

30-15 Intermittent Fitness Test - first trial

ACTIVE COMPARATOR

Aerobic capacity will be measured using the field-based 30-15IFT test. This intermittent, incremental test consists of 30-second shuttle runs interspersed with 15-second active recovery periods. Running speed will be set at 8 km/h for the first 30-second run and increased by 0.5 km/h in each 30-second phase thereafter. The speed of the last successfully completed stage will be recorded as the test result, i.e. the maximum running speed (V) during IFT. Vo2max will be estimated by the following equation: Vo2max IFT (ml/min/kg) = 28.3 - 2.15G - 0.741A - 0.0357BM + 0.058A X VIFT + 1.03VIFT where G stands for subjects gender, A for age and BM for body mass, respectively.

Diagnostic Test: Cardio Respiratory Fitness testing

30-15 Intermittent Fitness Test - second trial

ACTIVE COMPARATOR

The procedures will be the same as previously described

Diagnostic Test: Cardio Respiratory Fitness testing

Interventions

In a randomized cross over designed study, we will measure Vo2max by using different tests: 1. Continous Treadmill Running Test 2. Continous 2-mile run test 3. 30-15 Intermittent Fitness Test - first trial and second trial

30-15 Intermittent Fitness Test - first trial30-15 Intermittent Fitness Test - second trialContinous 2-mile run testContinous Treadmill Running Test

Eligibility Criteria

Age18 Years - 45 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • Members of Slovenian Armed Forces with no acute and/or chronic neuromuscular and skeletal injuries and/or any other chronic disease or conditions.

You may not qualify if:

  • older than 45 years of age acute and/or chronic neuromuscular and skeletal injuries the existence of any chronic disease or condition

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Faculty of Sport

Ljubljana, 1000, Slovenia

Location

Related Publications (2)

  • Paravlic AH, Simunic B, Pisot R, Rauter S, Stuhec S, Vodicar J. The reliability, validity and usefulness of the 30-15 intermittent fitness test for cardiorespiratory fitness assessment in military personnel. Sci Rep. 2022 Sep 27;12(1):16087. doi: 10.1038/s41598-022-20315-3.

  • Paravlic AH, Simunic B, Pisot R, Rauter S, Vodicar J. Reliability and validity of 30-15 intermittent fitness test for cardiorespiratory fitness assessment among infantry members of Slovenian armed forces: A study protocol. Front Psychol. 2022 Jul 22;13:894186. doi: 10.3389/fpsyg.2022.894186. eCollection 2022.

Study Officials

  • Janez Vodicar

    Faculty of Sport

    STUDY DIRECTOR
  • Armin Paravlic

    Faculty of Sport and Science and Research Centre Koper

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Masking Details
All subjects will be blinded for group allocation during testing procedures, including coaches (care provider), soldiers (participants) investigators, and outcomes assessors.
Purpose
SCREENING
Intervention Model
CROSSOVER
Model Details: Crossover randomized validation study
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Faculty of Sport

Study Record Dates

First Submitted

January 19, 2022

First Posted

February 1, 2022

Study Start

February 14, 2022

Primary Completion

June 1, 2022

Study Completion

June 1, 2022

Last Updated

January 11, 2024

Record last verified: 2024-01

Data Sharing

IPD Sharing
Will not share

There is no plan for such an action. However, if the principal investigator and the project sponsor allow this aiming to collaborate on other projects, we will be interested to do so.

Locations