Which of the following is the most common injury associated with load carriage?

The most common injury associated with load carriage is indeed foot blisters. This is primarily due to the repetitive friction between the skin and the footwear or the load itself, especially during prolonged periods of walking or running while carrying weight. When individuals engage in load carriage activities, such as marching or hiking with a heavy pack, their feet often experience significant pressure and movement within the shoes, leading to the development of blisters.

Foot blisters are particularly prevalent in tactical settings, where personnel may be required to carry extensive gear over long distances or uneven terrain. Prevention of blisters is essential, requiring proper footwear, moisture-wicking socks, and sometimes the use of blister prevention products.

In contrast, while knee injuries, shoulder injuries, and back injuries can also occur during load carriage due to improper technique, excessive weight, or pre-existing conditions, they tend not to be as frequent as foot blisters, as these latter injuries are more directly related to the immediate discomfort and shoe fit issues that arise during load-bearing activities.