2.4-km Run and 20-m Multistage Fitness Test Relationships in Law Enforcement Recruits After Academy Training. Issue 4 (April 2020)

• Record Type: Journal Article
• Authors: Lockie, Robert G.; Hernandez, Javier A.; Moreno, Matthew R.; Dulla, Joseph M.; Dawes, J. Jay; Orr, Robin M.
• Is Part Of: Journal of strength and conditioning research. Volume 34:Issue 4(2020)
• Publication Date: 2020-04
• Subjects: 1.5-mile run -- academy training -- cardiovascular fitness -- maximal aerobic capacity -- police -- tactical; Physical education and training -- Periodicals; Weight training -- Physiological aspects -- Periodicals; Physical fitness -- Periodicals; 613.7
• DOI: 10.1519/JSC.0000000000003489
• Languages: English
• ISSNs: 1064-8011

Abstract

Abstract : Abstract: Lockie, RG, Hernandez, JA, Moreno, MR, Dulla, JM, Dawes, JJ, and Orr, RM. 2.4-km run and 20-m multistage fitness test relationships in law enforcement recruits after academy training. J Strength Cond Res 34(4): 942–945, 2020—The 2.4-km run and 20-m multistage fitness test (20MSFT) are common aerobic fitness tests in law enforcement. Previous research analyzed relationships between these tests in recruits, and indicated limited transferability due to disparate demands (direction changes and running intensity). However, the correlations between 2.4-km run and 20MSFT in recruits after academy training may be different, where recruits should be fitter and able to complete high-intensity running efforts. This study documented changes in and relationships between the 2.4-km run and 20MSFT in law enforcement recruits after academy training. Retrospective analysis on 6 academy classes (276 males and 50 females) from one agency was conducted. The 20MSFT and 2.4-km run were completed before and after academy training. Estimated V[Combining Dot Above]O2 max was derived from 2.4-km run time and the 20MSFT shuttle number. Paired-samples t -tests ascertained whether the 2.4-km run and 20MSFT improved after academy. Correlations and linear regression derived relationships between the 2.4-km run and 20MSFT. Recruits improved in the 2.4-km run and 20MSFT ( p < 0.01). There were significant correlations between the 2.4-km run and 20MSFT for all recruits ( r = −0.49), males ( r = −0.48), and females ( r = −0.29). However, the regression equations for all recruits ( r 2 = 0.24), males ( r 2 = 0.23), and females ( r 2 = 0.08) were low. The results suggested that there were disparate aspects to the 2.4-km run and 20MSFT in law enforcement recruits after academy training. Although aerobic fitness improved, there are likely other aspects important to the 20MSFT not developed during academy (change-of-direction ability and high-intensity running). This could impact the between-test relationship.