Associations between mechanical task performance and injuries were examined in a study of male Army wheel vehicle mechanics. Initial testing on selected mechanical tasks, physical characteristics, and physical fitness was followed by screening of medical records for injuries occurring one year later. Of the 160 mechanics sought, only 104 completed the study. Cox regressions demonstrated little systematic association between time to perform mechanical tasks and overall injury risk (p=>0.26). When only mechanical work-related injuries were examined, mechanics with slower starter installation times tended to have higher injury risk. Higher injury risk was also associated with greater EMI, in consonance with the literature. However, higher injury risk was also associated with more push-ups and higher scores on strength measures which contradicted much of the literature. The small number of Soldiers may have resulted in an unrepresentative sample. Data on injury rates, anatomical locations of injuries, and activities associated with injury were very similar to a past investigation of mechanics.


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