The Experts below are selected from a list of 321 Experts worldwide ranked by ideXlab platform

Barbara A. Gaines - One of the best experts on this subject based on the ideXlab platform.

  • Dirt Bikes and All Terrain Vehicles: The Real Threat to Pediatric Kidneys
    The Journal of Urology, 2007
    Co-Authors: Barbara A. Gaines
    Abstract:

    Purpose: Recent reviews show that bicycles are the major cause of significant renal injury with few injuries occurring during contact sports. All-Terrain Vehicles are also responsible for significant pediatric renal trauma. We determined whether dirt bikes and All-Terrain Vehicles cause more significant renal injuries than contact sports.Materials and Methods: A retrospective review of our pediatric trauma database revealed 115 consecutive patients treated for renal trauma from 2000 to 2005. A total of 20 bicycle injuries occurred, including 6 on dirt bikes. A total of 13 All-Terrain vehicle injuries occurred, including 4 involving rollovers. A total of 12 contact sport injuries occurred, including 2 during pick-up games. The mean grade of renal injury was compared among the mechanisms, with grades III–V considered high grade.Results: In descending order of renal injury the mechanisms were dirt bike (2.8), All-Terrain vehicle rollover (2.8), bicycle (2.3), All-Terrain vehicle (2.1), contact sports (1.8) a...

  • Dirt bikes and all terrain Vehicles: the real threat to pediatric kidneys.
    The Journal of urology, 2007
    Co-Authors: Barbara A. Gaines
    Abstract:

    Recent reviews show that bicycles are the major cause of significant renal injury with few injuries occurring during contact sports. All-Terrain Vehicles are also responsible for significant pediatric renal trauma. We determined whether dirt bikes and All-Terrain Vehicles cause more significant renal injuries than contact sports. A retrospective review of our pediatric trauma database revealed 115 consecutive patients treated for renal trauma from 2000 to 2005. A total of 20 bicycle injuries occurred, including 6 on dirt bikes. A total of 13 All-Terrain vehicle injuries occurred, including 4 involving rollovers. A total of 12 contact sport injuries occurred, including 2 during pick-up games. The mean grade of renal injury was compared among the mechanisms, with grades III-V considered high grade. In descending order of renal injury the mechanisms were dirt bike (2.8), All-Terrain vehicle rollover (2.8), bicycle (2.3), All-Terrain vehicle (2.1), contact sports (1.8) and organized contact sports (1.4). Dirt bikes and All-Terrain vehicle rollovers caused significantly greater renal trauma than organized contact sports (2.8 vs 1.4, p = 0.007 and 0.02, respectively), whereas overall bicycle and All-Terrain vehicle accidents resulted in similar renal trauma grades compared to those of all contact sports. The 2 high grade renal injuries during contact sports occurred during pick-up football games without protective gear. Physician advice regarding children with a solitary kidney should include avoiding dirt bikes and All-Terrain Vehicles. Efforts to limit All-Terrain vehicle use in children younger than 16 years would decrease the risk of significant renal injury in this population more effectively than limiting contact sports participation.

  • All-Terrain vehicle rules and regulations: impact on pediatric mortality.
    Journal of pediatric surgery, 2003
    Co-Authors: Jeffrey S. Upperman, Barbara A. Gaines, Barbara L. Shultz, David J. Hackam, Laura D. Cassidy, Henri R. Ford, James Helmkemp
    Abstract:

    BACKGROUND/PURPOSE: All-Terrain Vehicles (ATV) use by children leads to severe injury and death. Since the US Consumer Product Safety Commission consent decree expired in 1998, there has been little movement in regulating ATV use for children (

Charles A Jennissen - One of the best experts on this subject based on the ideXlab platform.

  • The Dark Side of Nighttime Off-Road Vehicle Use
    Council on Injury Violence and Poison Prevention Program, 2021
    Co-Authors: Charles A Jennissen, Nicholas Stange, Annamarie Fjeld, Gerene M Denning
    Abstract:

    Background: Off-road Vehicles (ORVs), which include All-Terrain Vehicles (ATVs) and side-by-sides (SxSs), are designed for off-road use only. Iowa law restricts roadway riding to occupational purposes and limits it to daylight hours. A growing number of Iowa counties are opening roadways to recreational ORV use and many counties are choosing not to include a daylight restriction. To better understand this issue, the study objective was to compare and contrast daytime and nighttime ORV crashes …

  • JA:2021-11. Exposure, Crashes, and Deaths Related to the Use of All-Terrain Vehicles for Spraying
    Journal of Agromedicine, 2020
    Co-Authors: Charles A Jennissen, Gerene Denning, Kristine J. P. Schaefer, Stephanie A. Leonard
    Abstract:

    Purpose: All-Terrain Vehicles (ATVs) are valuable assets on farms and ranches, but are associated with a growing proportion of U.S. agricultural work-related deaths and injuries. The objectives of ...

  • JA:2021-10. The Epidemiology of All-Terrain-Vehicle Injuries: 2015-2017
    Journal of Agromedicine, 2020
    Co-Authors: Serap Gorucu, Charles A Jennissen, Gerene Denning, Bryan Weichelt, Stephen Oesch
    Abstract:

    Purpose: Injuries related to the operation of off-road Vehicles (ORVs), including All-Terrain Vehicles (ATVs), continue to be a significant public health concern, especially in rural areas and agri...

  • Pediatric and adolescent injury in All-Terrain Vehicles.
    Research in sports medicine (Print), 2018
    Co-Authors: Gerene Denning, Charles A Jennissen
    Abstract:

    All-Terrain Vehicles (ATVs) remain a significant source of death and injury among youth. The purpose of this review is to provide an overview of the scope of the problem, the risk factors involved, crash-related outcomes and costs, and injury prevention strategies. There are currently more than 100 pediatric ATV-related fatalities each year and over 30,000 emergency department visits, with a potential annual cost for deaths and injuries approaching $1 billion. Major risk factors include lack of training, operating adult-size ATVs, riding as or carrying passengers, riding on the road, and not wearing a helmet. Extremity injuries are highly common, and the leading causes of death include brain injuries and multi-organ trauma. The latter increasingly involves being crushed by or pinned under the ATV. Reducing ATV-related deaths and injuries will require multiple strategies that integrate approaches from education, engineering, and evidence-based safety laws and their enforcement.

  • all terrain Vehicles atvs on the road a serious traffic safety and public health concern
    Traffic Injury Prevention, 2013
    Co-Authors: Gerene M Denning, Charles A Jennissen, Karisa K Harland, D Ellis, Christopher T Buresh
    Abstract:

    Objectives: On-road All-Terrain vehicle (ATV) crashes are frequent occurrences that disproportionately impact rural communities. These crashes occur despite most states having laws restricting on-road ATV use. A number of overall risk factors for ATV-related injuries have been identified (e.g., lack of helmet, carrying passengers). However, few studies have determined the relative contribution of these and other factors to on-road crashes and injuries. The objective of our study was to determine whether there were differences between on- and off-road ATV crashes in their demographics and/or mechanisms and outcomes of injuries. Methods: Data were derived from our statewide ATV injury surveillance database (2002–2009). Crash location and crash and injury mechanisms were coded using a modification of the Department of Transportation (DOT) coding system. Descriptive analyses and statistical comparisons (chi-square test) of variables were performed. Multivariate logistic regression analysis was used to determi...

Benoit Thuilot - One of the best experts on this subject based on the ideXlab platform.

  • On-line estimation of a stability metric including grip conditions and slope: Application to rollover prevention for All-Terrain Vehicles
    2011
    Co-Authors: M. Richier, Benoit Thuilot, Roland Lenain, C. Debain
    Abstract:

    Rollover is the principal cause of serious accidents for All-Terrain Vehicles (ATV), especially for light Vehicles (e.g.quad bikes). In order to reduce this risk, the development of active devices, contributes a promising solution. With this aim, this paper proposes an algorithm allowing to predict the rollover risk, by means of an on-line estimation of a stability criterion. Among several rollover indicators, the Lateral Load Transfer (LLT) has been chosen because its estimation needs only low cost sensing equipment compared to the price of a light ATV. An adapted backstepping observer associated to a bicycle model is first developed, allowing the estimation of the grip conditions. In addition, the lateral slope is estimated thanks to a classical Kalman filter relying on measured acceleration and roll rate. Then, an expression of the LLT is derived from a roll model taking into account the grip conditions and the slope. Finally, the LLT value is anticipated by means of a prediction algorithm. The capabilities of this system are investigated thanks to full scale experiments with a quad bike.

  • An anti-rollover device dedicated to All-Terrain Vehicle lateral stability: application to a quad bike
    2009
    Co-Authors: N. Bouton, Benoit Thuilot, Roland Lenain, Michel Berducat
    Abstract:

    All-Terrain Vehicles (ATVs - as quad bikes) are very useful and driveable. These specificities permit to realize extra agricultural tasks (spreading, spraying, displacements ) in an easier way than using once more an heavy farm tractor. Unfortunately, the growing popularity of quad bikes in the agricultural area is accompanied by an increasing number of accidents and particularly lateral rollovers. Therefore, the estimation of hazardous situations is a preliminary step in the design of active security devices dedicated to All-Terrain Vehicles (ATVs). This paper proposes a rollover metric dedicated to the lateral hazardous situations estimation. It is based on the computation of the Lateral Load Transfer (LLT) according to a backstepping observer dedicated to grip conditions estimation. Next, the maximum vehicle velocity, compatible with a safe motion over some horizon of prediction, is computed via Predictive Functional Control (PFC), and can then be applied, if needed, to the vehicle actuator to prevent from rollover. Capabilities of the proposed metric and device are demonstrated and discussed via both an advanced simulation testbed (that has proved to supply results very close to experimental ones) and full scale experiments.

  • A Tire Stiffness Backstepping Observer Dedicated to All-Terrain Vehicle Rollover Prevention
    Advanced Robotics, 2008
    Co-Authors: Nicolas Bouton, Benoit Thuilot, Roland Lenain, Philippe Martinet
    Abstract:

    Most active devices focused on vehicle stability concern on-road cars and cannot be applied satisfactorily in an off-road context, since the variability and the non-linearities of tire/ground contact are often neglected. In previous work, a rollover indicator devoted to light All-Terrain Vehicles accounting for these phenomena has been proposed. It is based on the prediction of the lateral load transfer. However, such an indicator requires the on-line knowledge of the tire cornering stiffness. Therefore, in this paper, an adapted backstepping observer, making use only of yaw rate measurement, is designed to estimate tire cornering stiffness and to account for its non-linearity. The capabilities of such an observer are demonstrated and discussed through both advanced simulations and actual experiments. © Koninklijke Brill NV, Leiden and The Robotics Society of Japan, 2008

  • A rollover indicator dedicated to All-Terrain Vehicles including sliding effects and pilot behavior
    2008
    Co-Authors: Nicolas Bouton, Benoit Thuilot, Roland Lenain, Michel Berducat
    Abstract:

    The growing popularity of quad bikes in the agricultural area is unfortunately accompanied by an increasing number of accidents and particularly lateral rollovers. Then, the estimation of hazardous situations, whatever the grip conditions and pilot behavior, is a preliminary step in the design of active security devices dedicated to All-Terrain Vehicles (ATVs). This paper proposes a rollover metric dedicated to the lateral hazardous situations estimation. It is based on the computation of the Lateral Load Transfer (LLT) obtained, on one hand from a roll projection of the quad bike with its pilot and on the other hand from a backstepping observer dedicated to grip conditions estimation. Capabilities of the proposed observer and metric to estimate hazardous situations on natural ground are demonstrated via both advanced simulations and full scale experiments.

  • A tire stiffness backstepping observer dedicated to All-Terrain: vehicle rollover prevention
    Advanced Robotics, 2008
    Co-Authors: N. Bouton, Benoit Thuilot, Roland Lenain, Philippe Martinet
    Abstract:

    Most active devices focused on vehicle stability concern on-road cars and cannot be applied satisfactorily in an off-road context, since the variability and the non-linearities of tire/ground contact are often neglected. In previous work, a rollover indicator devoted to light All-Terrain Vehicles accounting for these phenomena has been proposed. It is based on the prediction of the lateral load transfer. However, such an indicator requires the on-line knowledge of the tire cornering stiffness. Therefore, in this paper, an adapted backstepping observer, making use only of yaw rate measurement, is designed to estimate tire cornering stiffness and to account for its non-linearity. The capabilities of such an observer are demonstrated and discussed through both advanced simulations and actual experiments.

Gerene M Denning - One of the best experts on this subject based on the ideXlab platform.

  • The Dark Side of Nighttime Off-Road Vehicle Use
    Council on Injury Violence and Poison Prevention Program, 2021
    Co-Authors: Charles A Jennissen, Nicholas Stange, Annamarie Fjeld, Gerene M Denning
    Abstract:

    Background: Off-road Vehicles (ORVs), which include All-Terrain Vehicles (ATVs) and side-by-sides (SxSs), are designed for off-road use only. Iowa law restricts roadway riding to occupational purposes and limits it to daylight hours. A growing number of Iowa counties are opening roadways to recreational ORV use and many counties are choosing not to include a daylight restriction. To better understand this issue, the study objective was to compare and contrast daytime and nighttime ORV crashes …

  • all terrain Vehicles atvs on the road a serious traffic safety and public health concern
    Traffic Injury Prevention, 2013
    Co-Authors: Gerene M Denning, Charles A Jennissen, Karisa K Harland, D Ellis, Christopher T Buresh
    Abstract:

    Objectives: On-road All-Terrain vehicle (ATV) crashes are frequent occurrences that disproportionately impact rural communities. These crashes occur despite most states having laws restricting on-road ATV use. A number of overall risk factors for ATV-related injuries have been identified (e.g., lack of helmet, carrying passengers). However, few studies have determined the relative contribution of these and other factors to on-road crashes and injuries. The objective of our study was to determine whether there were differences between on- and off-road ATV crashes in their demographics and/or mechanisms and outcomes of injuries. Methods: Data were derived from our statewide ATV injury surveillance database (2002–2009). Crash location and crash and injury mechanisms were coded using a modification of the Department of Transportation (DOT) coding system. Descriptive analyses and statistical comparisons (chi-square test) of variables were performed. Multivariate logistic regression analysis was used to determi...

  • all terrain Vehicles on the road a serious traffic safety concern
    Injury Prevention, 2012
    Co-Authors: Charles A Jennissen, Christopher T Buresh, Karisa K Harland, D Ellis, Gerene M Denning
    Abstract:

    Background On-road All-Terrain vehicle (ATV) crashes are frequent despite most US states having laws restricting road use. Aims/Objectives/Purpose To determine the demographics, and the mechanisms and outcomes of injuries of on-road versus off-road ATV crashes. Methods Data from our Iowa ATV injury surveillance database (2002–2009) was derived and statistically analysed. Results/Outcomes 976 records were studied, with 38% of injured individuals from on-road crashes. Demographics were similar at each location. Females and youths under 16 were over four times more likely to be passengers (p 15 (p Significance/Contribution to the Field On-road crashes were significantly more likely to involve collision with another vehicle, suggesting on-road ATVs represent a traffic safety concern. Even controlling for helmet use, on-road crash victims suffered more severe injuries than those off-road. Our data reinforces the importance of laws restricting ATV road use and their enforcement, and the need to increase ATV user education about the dangers of on-road riding.

Karisa K Harland - One of the best experts on this subject based on the ideXlab platform.

  • all terrain Vehicles atvs on the road a serious traffic safety and public health concern
    Traffic Injury Prevention, 2013
    Co-Authors: Gerene M Denning, Charles A Jennissen, Karisa K Harland, D Ellis, Christopher T Buresh
    Abstract:

    Objectives: On-road All-Terrain vehicle (ATV) crashes are frequent occurrences that disproportionately impact rural communities. These crashes occur despite most states having laws restricting on-road ATV use. A number of overall risk factors for ATV-related injuries have been identified (e.g., lack of helmet, carrying passengers). However, few studies have determined the relative contribution of these and other factors to on-road crashes and injuries. The objective of our study was to determine whether there were differences between on- and off-road ATV crashes in their demographics and/or mechanisms and outcomes of injuries. Methods: Data were derived from our statewide ATV injury surveillance database (2002–2009). Crash location and crash and injury mechanisms were coded using a modification of the Department of Transportation (DOT) coding system. Descriptive analyses and statistical comparisons (chi-square test) of variables were performed. Multivariate logistic regression analysis was used to determi...

  • all terrain Vehicles on the road a serious traffic safety concern
    Injury Prevention, 2012
    Co-Authors: Charles A Jennissen, Christopher T Buresh, Karisa K Harland, D Ellis, Gerene M Denning
    Abstract:

    Background On-road All-Terrain vehicle (ATV) crashes are frequent despite most US states having laws restricting road use. Aims/Objectives/Purpose To determine the demographics, and the mechanisms and outcomes of injuries of on-road versus off-road ATV crashes. Methods Data from our Iowa ATV injury surveillance database (2002–2009) was derived and statistically analysed. Results/Outcomes 976 records were studied, with 38% of injured individuals from on-road crashes. Demographics were similar at each location. Females and youths under 16 were over four times more likely to be passengers (p 15 (p Significance/Contribution to the Field On-road crashes were significantly more likely to involve collision with another vehicle, suggesting on-road ATVs represent a traffic safety concern. Even controlling for helmet use, on-road crash victims suffered more severe injuries than those off-road. Our data reinforces the importance of laws restricting ATV road use and their enforcement, and the need to increase ATV user education about the dangers of on-road riding.