Effects of the Task Complexity on the Single Movement Response Time of Upper and Lower Limbs in Police Officers
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Police officers occasionally encounter belligerents resisting or even physically assaulting them without or with objects. The self-defense or legal utilization of use of force to disable the offender from harming an officer or others may depend on a single movement speed of hands and legs. This study investigated the effects of task complexity on a single movement response time of the upper and lower limbs in police officers. The sample consisted of 32 male police officers aged between 23 and 50 years. They performed a single movement as fast as possible with their upper and lower limb in three incrementally more complex tasks. In the first task, participants acted on a light signal and with their dominant limb they had to turn off the signal as fast as possible. In the second task, on the light signal, participants could turn off the light with free choice of the upper limb in a hand task or lower limb in a leg task. In the third task, participants had to turn the light off with the r...ight limb if the light turned red and with the left limb if the light turned blue. The BlazePod device was used to assess the movement response time. The results show that there was a significant effect of task complexity on the single movement response time of the hand (F = 24.5, p < 0.001) and leg (F = 46.2, p < 0.001). The training of police officers should utilize specific and situational tasks to improve movement response time by improving the redundancy in decision-making processes during work-specific tasks of different complexity.
Кључне речи:
law enforcement officers / occupational performance / reaction speedИзвор:
International Journal of Environmental Research and Public Health, 2022, 19, 14, 8695-Издавач:
- MDPI
Институција/група
Institut za medicinska istraživanjaTY - JOUR AU - Janković, Dunja AU - Čvorović, Aleksandar AU - Dopsaj, Milivoj AU - Prćić, Iva AU - Kukić, Filip PY - 2022 UR - http://rimi.imi.bg.ac.rs/handle/123456789/1249 AB - Police officers occasionally encounter belligerents resisting or even physically assaulting them without or with objects. The self-defense or legal utilization of use of force to disable the offender from harming an officer or others may depend on a single movement speed of hands and legs. This study investigated the effects of task complexity on a single movement response time of the upper and lower limbs in police officers. The sample consisted of 32 male police officers aged between 23 and 50 years. They performed a single movement as fast as possible with their upper and lower limb in three incrementally more complex tasks. In the first task, participants acted on a light signal and with their dominant limb they had to turn off the signal as fast as possible. In the second task, on the light signal, participants could turn off the light with free choice of the upper limb in a hand task or lower limb in a leg task. In the third task, participants had to turn the light off with the right limb if the light turned red and with the left limb if the light turned blue. The BlazePod device was used to assess the movement response time. The results show that there was a significant effect of task complexity on the single movement response time of the hand (F = 24.5, p < 0.001) and leg (F = 46.2, p < 0.001). The training of police officers should utilize specific and situational tasks to improve movement response time by improving the redundancy in decision-making processes during work-specific tasks of different complexity. PB - MDPI T2 - International Journal of Environmental Research and Public Health T1 - Effects of the Task Complexity on the Single Movement Response Time of Upper and Lower Limbs in Police Officers IS - 14 SP - 8695 VL - 19 DO - 10.3390/ijerph19148695 ER -
@article{ author = "Janković, Dunja and Čvorović, Aleksandar and Dopsaj, Milivoj and Prćić, Iva and Kukić, Filip", year = "2022", abstract = "Police officers occasionally encounter belligerents resisting or even physically assaulting them without or with objects. The self-defense or legal utilization of use of force to disable the offender from harming an officer or others may depend on a single movement speed of hands and legs. This study investigated the effects of task complexity on a single movement response time of the upper and lower limbs in police officers. The sample consisted of 32 male police officers aged between 23 and 50 years. They performed a single movement as fast as possible with their upper and lower limb in three incrementally more complex tasks. In the first task, participants acted on a light signal and with their dominant limb they had to turn off the signal as fast as possible. In the second task, on the light signal, participants could turn off the light with free choice of the upper limb in a hand task or lower limb in a leg task. In the third task, participants had to turn the light off with the right limb if the light turned red and with the left limb if the light turned blue. The BlazePod device was used to assess the movement response time. The results show that there was a significant effect of task complexity on the single movement response time of the hand (F = 24.5, p < 0.001) and leg (F = 46.2, p < 0.001). The training of police officers should utilize specific and situational tasks to improve movement response time by improving the redundancy in decision-making processes during work-specific tasks of different complexity.", publisher = "MDPI", journal = "International Journal of Environmental Research and Public Health", title = "Effects of the Task Complexity on the Single Movement Response Time of Upper and Lower Limbs in Police Officers", number = "14", pages = "8695", volume = "19", doi = "10.3390/ijerph19148695" }
Janković, D., Čvorović, A., Dopsaj, M., Prćić, I.,& Kukić, F.. (2022). Effects of the Task Complexity on the Single Movement Response Time of Upper and Lower Limbs in Police Officers. in International Journal of Environmental Research and Public Health MDPI., 19(14), 8695. https://doi.org/10.3390/ijerph19148695
Janković D, Čvorović A, Dopsaj M, Prćić I, Kukić F. Effects of the Task Complexity on the Single Movement Response Time of Upper and Lower Limbs in Police Officers. in International Journal of Environmental Research and Public Health. 2022;19(14):8695. doi:10.3390/ijerph19148695 .
Janković, Dunja, Čvorović, Aleksandar, Dopsaj, Milivoj, Prćić, Iva, Kukić, Filip, "Effects of the Task Complexity on the Single Movement Response Time of Upper and Lower Limbs in Police Officers" in International Journal of Environmental Research and Public Health, 19, no. 14 (2022):8695, https://doi.org/10.3390/ijerph19148695 . .