The study is aimed at investigating the effects of action observation and motor imagery training in patients undergoing total knee arthroplasty. Fifty participants will be enrolled during hospital admission and randomized into 2 groups (AO+MI and CTRL groups). AO+MI will undergo 12-minute AO+MI intervention for 3 days (preoperative day, first and second postoperartive days), whereas CTRL group will undergo usual care. At baseline, first and third postoperative days, participants will be assessed for mobility, pain, range of motion, quadriceps acrivation failure and patient's bady-pain representation by a blinded operator.
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Changes in functional mobility
Timeframe: At baseline, at 1 day and 3 days after surgery