| Summary: | 碩士 === 國立臺灣師範大學 === 運動科學研究所 === 99 === Purpose: To investigate the kinetic parameters of lower limb and nature course of functional recovery of the patient who underwent the minimal invasive total knee replacement surgery and determine the change of maximal torque in knee flexors and knee extensors at different muscle strength testing condition. Methods: In this prospective study, twenty-two participants underwent the unilateral minimal invasive total knee replacement surgery, and the knee extensors, knee flexors muscle strength were evaluated at five different times: before surgery, post surgery 1th, 2th, 6th and 12th month. Isometric, isokinetic muscle strength, range of motion(ROM), joint sense and rate of force development(RFD) were analyzed. Results: There is significant difference in isokinetic muscle strength of knee extensor and ROM between both sides before surgery. On post surgery 1st and 2nd month, the maximal torquethe of knee extensor in the operative side were significant smaller than the non-operative side at isometric testing in 60°, and isokinetic test at 60°, and 180° angular velocity. There is no significant difference between post surgery 2nd month and pre surgery in operative side.Only isokinetic 180° the maximal torque of knee extensors in non-operation side was greater than the operation side. 0-150ms RFD of operative leg is significant smaller than non-operative leg duing post surgery 1th, 2th, 6th and 12th month.Conclusion: This study concluded that there was a significant decreased maximal torque of operative leg at one month after surgery compare with the value before surgery; The muscle strength of operative leg can recover to the level before surgery at post surgery 2nd month;There is still lower muscle strength of fast msucle in operative leg than non-operative leg at post surgery 6th month.The values of RFD in operative leg is always lower than non-operative leg during post surgery 1 year.This conclusion could be the reference for the exercise scientists or other exercise experts to design the exercise equipment and exercise prescription.
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