Dawes, Jay J.

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  • Dawes, Jay J. (2)
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Author's Bibliography

Effects of Maximal and Submaximal Anaerobic and Aerobic Running on Subsequent Change-of-Direction Speed Performance among Police Students

Koropanovski, Nenad; Orr, Robin M.; Dopsaj, Milivoj; Heinrich, Katie M.; Dawes, Jay J.; Kukić, Filip

(Basel : MDPI, 2022-05-18)

TY  - JOUR
AU  - Koropanovski, Nenad
AU  - Orr, Robin M.
AU  - Dopsaj, Milivoj
AU  - Heinrich, Katie M.
AU  - Dawes, Jay J.
AU  - Kukić, Filip
PY  - 2022-05-18
UR  - http://jakov.kpu.edu.rs/handle/123456789/1393
AB  - Change-of-direction speed (CODS) directly impacts success in sports, police, and military performance. Movements requiring CODS are often preceded by aerobic or anaerobic running. Therefore, this study investigated the effects of maximal and submaximal anaerobic and aerobic running on subsequent CODS performance. A sample of 50 police students (42% female and 58% male) performed a maximal 300-yard shuttle run test (SR300y) and a 2.4-km Cooper test (CT2.4km) at maximal effort and also at 95, 90, 85, 80, and 75% of maximal effort. CODS was assessed using the Illinois Agility Test (IAT) immediately following each intensity level of each test at 12 separate testing sessions. To avoid fatigue, the period between each consecutive session was a minimum of 3 days. Paired samples t-tests were used to determine the differences between the two conditions (anaerobic lactic and aerobic) and for the IAT. A repeated measure analysis of variance with a Bonferroni post hoc test was used to analyze partial effects of different running intensities on the IAT. A significant reduction in speed was observed between the initial IATmax time and the IATmax time after performing the SR300y at intensities of 95, 90, 85, and 80% of maximal speed on this test. IAT performance was significantly slower when performed after the CT2.4km at 95 and 90% of maximal aerobic speed. The effects of the SR300y on the IAT were significantly greater than the effects of the CT2.4km. No significant differences were found by sex. Building up to 90% intensity, anaerobic running has a greater negative impact on subsequent CODS performance than does aerobic running.
PB  - Basel : MDPI
T1  - Effects of Maximal and Submaximal Anaerobic and Aerobic Running on Subsequent Change-of-Direction Speed Performance among Police Students
VL  - 11
IS  - 5
SP  - 767
DO  - 10.3390/biology11050767
ER  - 
@article{
author = "Koropanovski, Nenad and Orr, Robin M. and Dopsaj, Milivoj and Heinrich, Katie M. and Dawes, Jay J. and Kukić, Filip",
year = "2022-05-18",
abstract = "Change-of-direction speed (CODS) directly impacts success in sports, police, and military performance. Movements requiring CODS are often preceded by aerobic or anaerobic running. Therefore, this study investigated the effects of maximal and submaximal anaerobic and aerobic running on subsequent CODS performance. A sample of 50 police students (42% female and 58% male) performed a maximal 300-yard shuttle run test (SR300y) and a 2.4-km Cooper test (CT2.4km) at maximal effort and also at 95, 90, 85, 80, and 75% of maximal effort. CODS was assessed using the Illinois Agility Test (IAT) immediately following each intensity level of each test at 12 separate testing sessions. To avoid fatigue, the period between each consecutive session was a minimum of 3 days. Paired samples t-tests were used to determine the differences between the two conditions (anaerobic lactic and aerobic) and for the IAT. A repeated measure analysis of variance with a Bonferroni post hoc test was used to analyze partial effects of different running intensities on the IAT. A significant reduction in speed was observed between the initial IATmax time and the IATmax time after performing the SR300y at intensities of 95, 90, 85, and 80% of maximal speed on this test. IAT performance was significantly slower when performed after the CT2.4km at 95 and 90% of maximal aerobic speed. The effects of the SR300y on the IAT were significantly greater than the effects of the CT2.4km. No significant differences were found by sex. Building up to 90% intensity, anaerobic running has a greater negative impact on subsequent CODS performance than does aerobic running.",
publisher = "Basel : MDPI",
title = "Effects of Maximal and Submaximal Anaerobic and Aerobic Running on Subsequent Change-of-Direction Speed Performance among Police Students",
volume = "11",
number = "5",
pages = "767",
doi = "10.3390/biology11050767"
}
Koropanovski, N., Orr, R. M., Dopsaj, M., Heinrich, K. M., Dawes, J. J.,& Kukić, F.. (2022-05-18). Effects of Maximal and Submaximal Anaerobic and Aerobic Running on Subsequent Change-of-Direction Speed Performance among Police Students. 
Basel : MDPI., 11(5), 767.
https://doi.org/10.3390/biology11050767
Koropanovski N, Orr RM, Dopsaj M, Heinrich KM, Dawes JJ, Kukić F. Effects of Maximal and Submaximal Anaerobic and Aerobic Running on Subsequent Change-of-Direction Speed Performance among Police Students. 2022;11(5):767.
doi:10.3390/biology11050767 .
Koropanovski, Nenad, Orr, Robin M., Dopsaj, Milivoj, Heinrich, Katie M., Dawes, Jay J., Kukić, Filip, "Effects of Maximal and Submaximal Anaerobic and Aerobic Running on Subsequent Change-of-Direction Speed Performance among Police Students", 11, no. 5 (2022-05-18):767,
https://doi.org/10.3390/biology11050767 . .
2

Differences in Body Composition across Police Occupations and Moderation Effects of Leisure Time Physical Activity

Kukić, Filip; Heinrich, Katie M.; Koropanovski, Nenad; Poston, Walker S. C.; Čvorović, Aleksandar; Dawes, Jay J.; Orr, Robin; Dopsaj, Milivoj

(Basel : MDPI, 2020-09-18)

TY  - JOUR
AU  - Kukić, Filip
AU  - Heinrich, Katie M.
AU  - Koropanovski, Nenad
AU  - Poston, Walker S. C.
AU  - Čvorović, Aleksandar
AU  - Dawes, Jay J.
AU  - Orr, Robin
AU  - Dopsaj, Milivoj
PY  - 2020-09-18
UR  - http://jakov.kpu.edu.rs/handle/123456789/1387
AB  - This study investigated differences in the body composition of police officers from different occupational groups and the moderation effects of leisure time physical activity (LTPA). A sample of 237 police officers (special anti-terrorist unit, gendarmerie, firefighters, and general duties) participated in the study. Body mass index (BMI), percent of body fat (%BF), percent of skeletal muscle mass (%SMM), and index of hypokinesia (IH) were assessed using a multichannel bioelectric impedance analyzer and officers reported the amount of LTPA using an international physical activity questionnaire. The sample was divided in three groups relative to LTPA, sedentary (0-149 min/week), moderately active (150-299 min/week), and very active (300+ min/week). Multiple analysis of variance (4 × 3) was used to analyze if occupational groups differed based solely on occupation, if officers from the same occupation differed in muscularity and fatness based on LTPA, and if any differences in body composition occurred between officers from different occupations with the same level of LTPA. Police officers from more physically demanding occupations demonstrated lower %BF and IH, while having higher %SMM. This was also observed among the officers of the same occupation who reported a higher LTPA, while officers who reported very high LTPA had similar body composition.
PB  - Basel : MDPI
T2  - International Journal of Environmental Research and Public Health
T1  - Differences in Body Composition across Police Occupations and Moderation Effects of Leisure Time Physical Activity
VL  - 17
IS  - 18
SP  - 6825
DO  - 10.3390/ijerph17186825
ER  - 
@article{
author = "Kukić, Filip and Heinrich, Katie M. and Koropanovski, Nenad and Poston, Walker S. C. and Čvorović, Aleksandar and Dawes, Jay J. and Orr, Robin and Dopsaj, Milivoj",
year = "2020-09-18",
abstract = "This study investigated differences in the body composition of police officers from different occupational groups and the moderation effects of leisure time physical activity (LTPA). A sample of 237 police officers (special anti-terrorist unit, gendarmerie, firefighters, and general duties) participated in the study. Body mass index (BMI), percent of body fat (%BF), percent of skeletal muscle mass (%SMM), and index of hypokinesia (IH) were assessed using a multichannel bioelectric impedance analyzer and officers reported the amount of LTPA using an international physical activity questionnaire. The sample was divided in three groups relative to LTPA, sedentary (0-149 min/week), moderately active (150-299 min/week), and very active (300+ min/week). Multiple analysis of variance (4 × 3) was used to analyze if occupational groups differed based solely on occupation, if officers from the same occupation differed in muscularity and fatness based on LTPA, and if any differences in body composition occurred between officers from different occupations with the same level of LTPA. Police officers from more physically demanding occupations demonstrated lower %BF and IH, while having higher %SMM. This was also observed among the officers of the same occupation who reported a higher LTPA, while officers who reported very high LTPA had similar body composition.",
publisher = "Basel : MDPI",
journal = "International Journal of Environmental Research and Public Health",
title = "Differences in Body Composition across Police Occupations and Moderation Effects of Leisure Time Physical Activity",
volume = "17",
number = "18",
pages = "6825",
doi = "10.3390/ijerph17186825"
}
Kukić, F., Heinrich, K. M., Koropanovski, N., Poston, W. S. C., Čvorović, A., Dawes, J. J., Orr, R.,& Dopsaj, M.. (2020-09-18). Differences in Body Composition across Police Occupations and Moderation Effects of Leisure Time Physical Activity. in International Journal of Environmental Research and Public Health
Basel : MDPI., 17(18), 6825.
https://doi.org/10.3390/ijerph17186825
Kukić F, Heinrich KM, Koropanovski N, Poston WSC, Čvorović A, Dawes JJ, Orr R, Dopsaj M. Differences in Body Composition across Police Occupations and Moderation Effects of Leisure Time Physical Activity. in International Journal of Environmental Research and Public Health. 2020;17(18):6825.
doi:10.3390/ijerph17186825 .
Kukić, Filip, Heinrich, Katie M., Koropanovski, Nenad, Poston, Walker S. C., Čvorović, Aleksandar, Dawes, Jay J., Orr, Robin, Dopsaj, Milivoj, "Differences in Body Composition across Police Occupations and Moderation Effects of Leisure Time Physical Activity" in International Journal of Environmental Research and Public Health, 17, no. 18 (2020-09-18):6825,
https://doi.org/10.3390/ijerph17186825 . .
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