J. Kivimaki et al., KNEE DISORDERS IN CARPET AND FLOOR LAYERS AND PAINTERS .2. KNEE SYMPTOMS AND PATELLOFEMORAL INDEXES, Scandinavian journal of rehabilitation medicine, 26(2), 1994, pp. 97-101
One hundred and sixty-eight carpet and floor layers and 146 painters w
ere examined with the aid of a questionnaire, clinical tests of the pa
tellofemoral joint, a knee exertion test and measurements of patellofe
moral indices. Carpet and floor layers reported previous knee conditio
ns more frequently than painters. Patellofemoral tenderness was not re
lated to occupation, patellofemoral indices or perceived knee conditio
ns. On the contrary, pain in the knee exertion test of 50 squats was r
elated to perceived knee injuries and pain on compression of the patel
la. Exertion test seems to be more accurate than traditional clinical
tests in the screening of knee lesions.