20.500.12556/RUL-155354 The reliability, validity and usefulness of the 30–15 intermittent fitness test for cardiorespiratory fitness assessment in military personnel 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. sport intermittent fitness test reliability validity usefulness cardiorespiratory fitness assessment military personnel health occupations physiology šport inermitentni test telesne pripravljenosti zanesljivost veljavnost uporabnost kardiorespiratorna sposobnost vojaško osebje vojaki ocena true false true Angleški jezik Slovenski jezik Članek v reviji 2024-03-27 12:27:35 2024-03-27 12:27:36 2024-03-28 03:55:25 0000-00-00 00:00:00 2022 0 0 8 str. art. 16087 Vol. 12 2022 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 796.01-057.36 2045-2322 10.1038/s41598-022-20315-3 123561219 s41598-022-20315-3.pdf s41598-022-20315-3.pdf 1 80EF18A3783D1AF8ABBD5E1EC1C07159 0d7b3be1c80eb5863dc54b8f1d0714f48c30193735d0f89a312bb4def5ae8107 aa1f28f1-ec2d-11ee-aa14-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=182201 https://www.nature.com/articles/s41598-022-20315-3 1 033165c6-ec2d-11ee-aa14-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=182199 Fakulteta za šport 0 0 0