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The reliability, validity and usefulness of the 30–15 intermittent fitness test for cardiorespiratory fitness assessment in military personnel
ID Paravlić, Armin (Author), ID Šimunič, Boštjan (Author), ID Pišot, Rado (Author), ID Rauter, Samo (Author), ID Štuhec, Stanko (Author), ID Vodičar, Janez (Author)

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Abstract
The objectives of this study were to investigate the reliability, validity, and usefulness of the 30–15 intermittent fitness test (30–15$_{IFT}$) in soldiers. The 34 infantry members of the Slovenian armed forces were recruited as participants. Participants performed the continuous incremental treadmill test (TR), a 2-mile run (2$_{MR}$) test, and two 30–15$_{IFT}$ tests. Additionally, participants were divided into a highest-scoring group (HSG) and a lowest-scoring group (LSG) based on their scores on the Army Physical Fitness Test. A very high reliability ratings were observed for 30–15$_{IFT}$ measures, as follows: end-running speed (ERS) ERS$_{IFT}$ (ICC= 0.971), maximal heart rate (HR$_{max}$) HR$_{maxIFT}$ (IC= 0.960), and maximal relative oxygen consumption (VO$_{2max}$) VO$_{2max-IFT}$ (ICC= 0.975). Although 30–15$_{IFT}$ measures demonstrated high correlations (r = 0.695–0.930) to the same measures of TR test, ERS, HR$_{max}$ and VO$_{2max}$ were higher in the 30–15$_{IFT}$ (p > 0.05). Furthermore, ERS$_{IFT}$ and predicted VO$_{2maxIFT}$ were higher in HSG compared to LSG, whereas HR$_{max}$ did not differ. The results of this study show that the 30–15$_{IFT}$ test is a reliable, valid and useful tool for assessing cardiorespiratory fitness in the armed forces. Moreover, the ERS and predicted VO$_2$max values derived from the 30–15$_{IFT}$ could be considered more sensitive markers of combat readiness than the parameters derived from the TR and 2$_{MR}$ tests.

Language:English
Keywords:sport, intermittent fitness test, reliability, validity, usefulness, cardiorespiratory fitness assessment, military personnel, health occupations, physiology
Work type:Article
Typology:1.01 - Original Scientific Article
Organization:FŠ - Faculty of Sport
Publication status:Published
Publication version:Version of Record
Year:2022
Number of pages:8 str.
Numbering:Vol. 12, art. 16087
PID:20.500.12556/RUL-155354 This link opens in a new window
UDC:796.01-057.36
ISSN on article:2045-2322
DOI:10.1038/s41598-022-20315-3 This link opens in a new window
COBISS.SI-ID:123561219 This link opens in a new window
Publication date in RUL:27.03.2024
Views:508
Downloads:332
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Record is a part of a journal

Title:Scientific reports
Shortened title:Sci. rep.
Publisher:Nature Publishing Group
ISSN:2045-2322
COBISS.SI-ID:18727432 This link opens in a new window

Licences

License:CC BY 4.0, Creative Commons Attribution 4.0 International
Link:http://creativecommons.org/licenses/by/4.0/
Description:This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.

Secondary language

Language:Slovenian
Keywords:šport, inermitentni test telesne pripravljenosti, zanesljivost, veljavnost, uporabnost, kardiorespiratorna sposobnost, vojaško osebje, vojaki, ocena

Projects

Funder:ARRS - Slovenian Research Agency
Project number:V5-2106
Name:Dvig telesne in bojne pripravljenosti pripadnikov SV

Funder:Other - Other funder or multiple funders
Funding programme:Slovenia, Ministry of Defence

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