| TKA | Total knee arthroplasty |
| OA | Osteoarthritis |
| NRS | Numerical Rating Scale |
| OKS | Oxford Knee Score |
| ROI | Region of interest |
| T0 | Resting thermogram |
| T1 | Post-exercise thermogram |
| T2 | Recovery thermogram (5 min after exercise) |
| SD | Standard deviation |
| CI | Confidence interval |
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