Use of kinematic analysis to identify differences in two tractor egress methods
Authors: Hesketh, A., J. Morrison, D. Mann
Description: Researchers have reported that slips and falls may occur when tractor operators climb into or out of their tractors. These researchers have suggested that the probability of a fall may depend on factors such as design of the tractor steps, environmental conditions, and behavioural factors. There are two common methods employed by operators when egressing from tractors: facing toward the tractor and facing away from the tractor. Intuitively, it could be concluded that facing away from the tractor is higher risk than facing toward the tractor, however, there is no evidence to support this hypothesis. The purpose of this study is to determine whether there are kinematic (positional) differences between these two egress methods that might help to explain the occurrence of falls from tractors during egress. Three participants, having heights representative of 5th, 50th, and 95th percentile adult males, will be recruited to participate in this study. The participants will climb up the stairs to the tractor cab, move into the cab, and then move back down the stairs. Two video cameras, situated to capture video in two perpendicular planes, will be used to capture the motion of the participants during ingress and egress. Video analysis will be used to determine the knee angle for each step on the staircase leading to the cab during both ingress and egress, the velocity of the feet, the total time of ingress/egress, and the time during ingress/egress in which the participants maintain a minimum of three-point contact with the tractor.
Keywords: tractor egress, falls-from-height, agricultural safety
Technical field: Machinery Systems Engineering
Conference name: CSBE/SCGAB 2015 Annual Conference, Edmonton, AB, 5-8 July 2015.
Session name: Biosystem Management I - Mechanics
Citation: Hesketh, A., J. Morrison, D. Mann. 2015. Use of kinematic analysis to identify differences in two tractor egress methods. CSBE/SCGAB 2015 Annual Conference, Edmonton, AB, 5-8 July 2015.
Publisher: Canadian Society for Bioengineering
Language 1: en
Rights: Canadian Society for Bioengineering