Hamill, Joseph

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Professor, Department of Kinesiology, School of Public Health and Health Sciences
Last Name
Hamill
First Name
Joseph
Discipline
Kinesiology
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Introduction
My research focuses on human locomotion, with particular emphasis on running mechanics. I am interested in determining the mechanical causes of cumulative micro-trauma injuries (more commonly referred to as overuse injuries). For these studies, my group has used kinematic and kinetic analyses, modeling and dynamical systems. The most recent research conducted in my laboratory involves the efficacy of altering footfall patterns during running and the possible link of such a change to running injuries.
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20202
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    PublicationOpen Access
    Running and Physical Activity in an Air-Polluted Environment: The Biomechanical and Musculoskeletal Protocol for a Prospective Cohort Study 4HAIE (Healthy Aging in Industrial Environment—Program 4)
    (2020-01) Jandacka, Daniel; Uchytil, Jaroslav; Zahradnik, David; Farana, Roman; Vilimek, Dominik; Skypala, Jiri; Urbaczka, Jan; Plesek, Jan; Motyka, Adam; Blaschova, Denisa; Beinhauerova, Gabriela; Rygelova, Marketa; Brtva, Pave;; Balazova, Klara; Horka, Veronika; Malus, Jan; Silvernail, Julia Freedman; Irwin, Gareth; Nieminen, Miika T.; Casula, Victor; Juras, Vladimir; Golian, Milos; Elavsky, Steriani; Knapova, Lenka; Sram, Radim; Hamill, Joseph
    Far too little attention has been paid to health effects of air pollution and physical (in)activity on musculoskeletal health. The purpose of the Healthy aging in industrial environment study (4HAIE) is to investigate the potential impact of physical activity in highly polluted air on musculoskeletal health. A total of 1500 active runners and inactive controls aged 18–65 will be recruited. The sample will be recruited using quota sampling based on location (the most air-polluted region in EU and a control region), age, sex, and activity status. Participants will complete online questionnaires and undergo a two-day baseline laboratory assessment, including biomechanical, physiological, psychological testing, and magnetic resonance imaging. Throughout one-year, physical activity data will be collected through Fitbit monitors, along with data regarding the incidence of injuries, air pollution, psychological factors, and behavior collected through a custom developed mobile application. Herein, we introduce a biomechanical and musculoskeletal protocol to investigate musculoskeletal and neuro-mechanical health in this 4HAIE cohort, including a design for controlling for physiological and psychological injury factors. In the current ongoing project, we hypothesize that there will be interactions of environmental, biomechanical, physiological, and psychosocial variables and that these interactions will cause musculoskeletal diseases/protection.
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    PublicationOpen Access
    Locomotor Coordination, Visual Perception and Head Stability during Running
    (2020-01) Hamill, Joseph; Lim, Jongil; Emmerik, Richard van
    Perception and action are coupled such that information from the perceptual system is related to the dynamics of action in order to regulate behavior adaptively. Using running as a model of a cyclic behavior, this coupling involves a continuous, cyclic relationship between the runner’s perception of the environment and the necessary adjustments of the body that ultimately result in a stable pattern of behavior. The purpose of this paper is to illustrate how individuals relate visual perception to rhythmic locomotor coordination patterns in conditions during which foot–ground collisions and visual task demands are altered. We review the findings of studies conducted to illustrate how humans change their behavior to maintain head stability during running with and without various degrees of visual challenge from the environment. Finally, we show that the human body adapts specific segment/joint configuration and coordination patterns to maintain head stability, both in the lower extremity and upper body segments, together with an increase in coordinative variability. These results indicate that in human locomotion, under higher speed (running) and visual task demands, systematic adaptations occur in the rhythmic coupling between the perceptual and movement systems.