Contributions of biarticular myogenic components to the limitation of the range of motion after immobilization of rat knee joint

Table 1 Arthrogenic and myogenic contracture contributions to the total limitation of extension ROM

After immobilization	1 week	2 weeks	4 weeks	8 weeks	16 weeks
Total contracture	30.0 ± 4.1^†	38.0 ± 9.0^†	44.5 ± 5.5^†	61.4 ± 7.5^†	75.5 ± 14.8^†
Myogenic contracture	15.9 ± 5.6	14.7 ± 6.5	21.0 ± 2.2	-1.6 ± 8.2^‡	-7.5 ± 1.5^‡
Arthrogenic contracture	3.7 ± 10.5	15.7 ± 1.9	25.0 ± 4.1	57.9 ± 7.6^‡	71.5 ± 12.2^‡

Values are given as mean ± SD. All data are presented in (°).
^†Indicates significant difference was found when the given data were compared with sham data in the same time point.
^‡Indicate significant difference was found when the given data were compared with the myogenic and arthrogenic contracture in the same time point.