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The effect of kneeling work on the muscular function of the knee was evaluated in carpet and floor layers who frequently kneeled in their work, and in painters who served as comparisons. The carpet and floor layers reported knee accidents more frequently than did painters and experienced knee extension torques which gradually decreased with increasing age. Painters did not experience this trend. No relationship between body weight and thigh girth and age was seen among carpet and floor layers. The right knee extension torque was found to be related to occupation and tenderness of the patellofemoral joint. The left knee extension torque was related to the knee pain index. The authors suggest that occupational kneeling and internal derangement of the knee affect thigh muscles among actively working house builders.
Scandinavian Journal of Rehabilitation Medicine, 26(1):91-95, 1994. (19 references)
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