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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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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| AO+MI | Experimental | Video-clips observation representing motor contents, followed by motor imagery (12 minutes a day per 3 days). |
|
| CTRL | Active Comparator | Usual care, consisting of preoperative education. |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Action observation and motor imagery | Behavioral | Observation and imagination of functional tasks that will be performed during the postoperative rehabilitation program. |
|
| Measure | Description | Time Frame |
|---|---|---|
| Changes in functional mobility | It will be assessed using the Timed Up and Go test | At baseline, at 1 day and 3 days after surgery |
| Measure | Description | Time Frame |
|---|---|---|
| Changes in active and passive knee range of motion | It will be assessed using an inertial measurement unit | At baseline, at 1 day and 3 days after surgery |
| Changes in perceived pain | It will be assessed using Numerical Rating Scale (0-10 points), where 0 means no pain and 10 means maximum pain. |
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Inclusion Criteria:
Exclusion Criteria:
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| Usual care | Behavioral | Participants will be educated about the postoperative rehabilitation program |
|
| At baseline and 3 days after surgery |
| Changes in body pain representation at the level of the knee joint | It will be assessed using the Pain Drawing Body Chart | At baseline and 3 days after surgery |
| Changes in quadriceps activation failure | It will be assessed using the Quadricpes Activation Battery | At baseline, at 1 day and 3 days after surgery |