Associations between Fitness Measures and Change of Direction Speeds with and without Occupational Loads in Female Police Officers

Robin M. Orr, Filip Kukić, Aleksandar Čvorović, Nenad Koropanovski, Radivoje Janković, Jay Dawes, Robert Lockie

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Abstract

Female police officers may be required to pursue offenders on foot while wearing occupational loads. The aim of this study was to determine relationships between fitness measures and change of direction speed (CODS) in female police officers and the influence of their occupational loads. Retrospective data were provided for 27 female police officers (age = 32.19 +/- 5.09 y, height = 162.78 +/- 5.01 cm, and mass = 71.31 +/- 13.42 kg) and included fitness measures of: lower-body power (standing long jump (SLJ)), upper-body and trunk muscle endurance (push-up (PU) and sit-up (SU)), aerobic power (estimated VO2max), and CODS (Illinois agility test). The CODS test was performed without and with occupational load (10 kg). Paired sample t-tests (between-load conditions) and Pearson's correlations (relationships between measures) were performed with linear regression analysis used to account for the contribution of measures to unloaded and loaded CODS performance. CODS was significantly slower when loaded (unloaded = 23.17 s, loaded = 24.14 s, p <0.001) with a strong, significant relationship between load conditions (r = 0.956, p <0.001). Moderate to strong, significant relationships were found between all fitness measures ranging from estimated VO2max (r = -0.448) to SU (r = -0.673) in the unloaded condition, with the strength of these relationships increasing in the loaded condition accounting for 61% to 67% of the variance, respectively. While unloaded agility test performance was strongly associated with loaded performance, female police officer CODS was significantly reduced when carrying occupational loads. A variety of fitness measures that influence officer CODS performances become increasingly important when occupational loads are carried.

Original languageEnglish
Article number1947
Number of pages9
JournalInternational Journal of Environmental Research and Public Health
Volume16
Issue number11
DOIs
Publication statusPublished - 1 Jun 2019

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Police
Body Weights and Measures
Direction compound
Foot
Linear Models
Regression Analysis
Muscles

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Orr, Robin M. ; Kukić, Filip ; Čvorović, Aleksandar ; Koropanovski, Nenad ; Janković, Radivoje ; Dawes, Jay ; Lockie, Robert. / Associations between Fitness Measures and Change of Direction Speeds with and without Occupational Loads in Female Police Officers. In: International Journal of Environmental Research and Public Health. 2019 ; Vol. 16, No. 11.
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abstract = "Female police officers may be required to pursue offenders on foot while wearing occupational loads. The aim of this study was to determine relationships between fitness measures and change of direction speed (CODS) in female police officers and the influence of their occupational loads. Retrospective data were provided for 27 female police officers (age = 32.19 +/- 5.09 y, height = 162.78 +/- 5.01 cm, and mass = 71.31 +/- 13.42 kg) and included fitness measures of: lower-body power (standing long jump (SLJ)), upper-body and trunk muscle endurance (push-up (PU) and sit-up (SU)), aerobic power (estimated VO2max), and CODS (Illinois agility test). The CODS test was performed without and with occupational load (10 kg). Paired sample t-tests (between-load conditions) and Pearson's correlations (relationships between measures) were performed with linear regression analysis used to account for the contribution of measures to unloaded and loaded CODS performance. CODS was significantly slower when loaded (unloaded = 23.17 s, loaded = 24.14 s, p <0.001) with a strong, significant relationship between load conditions (r = 0.956, p <0.001). Moderate to strong, significant relationships were found between all fitness measures ranging from estimated VO2max (r = -0.448) to SU (r = -0.673) in the unloaded condition, with the strength of these relationships increasing in the loaded condition accounting for 61{\%} to 67{\%} of the variance, respectively. While unloaded agility test performance was strongly associated with loaded performance, female police officer CODS was significantly reduced when carrying occupational loads. A variety of fitness measures that influence officer CODS performances become increasingly important when occupational loads are carried.",
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Associations between Fitness Measures and Change of Direction Speeds with and without Occupational Loads in Female Police Officers. / Orr, Robin M.; Kukić, Filip; Čvorović, Aleksandar; Koropanovski, Nenad; Janković, Radivoje; Dawes, Jay; Lockie, Robert.

In: International Journal of Environmental Research and Public Health, Vol. 16, No. 11, 1947, 01.06.2019.

Research output: Contribution to journalArticleResearchpeer-review

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