:::4a02c039

(user-centered)

/()()()()()

(CTD)Cumulative Trauma Disorder

60%-80% (1996)40%-50% (Dehlin1976)48.3%1.3~1.9

NIOSH 1991 (LI)=/(RWL)1

14~16

16~18

18~20

20~35

35~50

>50

15

19

23

25

21

16

10

12

14

15

13

10

(CTD)

(compatibility)()

1.1.2.2.3.3.4.()4.()5.5.6.6.7.7.8.8.

: , , . , . , . , , , , . ,, ., , . ., , . , . , (). ,, , . , .. . .