... between the questionnaire and observation ratings of 0.49 for frequency of lifting, carrying, and transferring6–15 kg. Concerning the frequency of lifting, carrying, and transferring 6–15 kg, the ... 1.1–6.1Kneeling/squatting and lifting/carrying combinedcBoth no kneeling/squatting and no lifting/carrying 65 22.0 137 41.9 1.0 - 1.0 -Kneeling/squatting >0 – <870 hrs. or lifting/carrying >0 ... number of squatting and the duration of kneeling work. D'Souza et al. [20] examine the relation-ship between the daily amount of kneeling and knee oste-oarthritis in the subset of participants...