Morphological and Microstructural Alterations of the Articular Cartilage and Bones during Treadmill Exercises with Different Additional Weight-Bearing Levels

Table 2

OARSI grades of cartilage (the numbers of cartilages in each grade).

Grade	WB0	EB0	WB5	EB5	WB12	EB12	WB19	EB19	WB26	EB26
Grade 0	6	6	6	6	5	4	4	4	4	3
Grade 1	0	0	0	0	1	2	1	1	1	1
Grade 2	0	0	0	0	0	0	1	1	1	1
Grade 3	0	0	0	0	0	0	0	0	0	1