Acute and chronic effects of early progressive resistance training on knee pain and knee joint effusion after unicompartmental knee arthroplasty

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To investigate if progressive resistance training initiated one week after unicompartment knee arthroplasty affect knee pain and knee joint effusion. Data from the progressive resistance training intervention group of a previous randomized control trail study was analysed. Knee pain was measured using a visual analogue scale, and knee circumference was used as an indication of knee joint effusion. Comparisons were made between the early (session 1+2) and late (session 15+16) phase of the 8-week intervention (chronic) and between the pre and post levels of single training sessions (acute). Chronic effects : A significant decrease in pre- (55% SD 44% ; p=0.004) and post-training (47% SD 53% ; p = 0.002) pain was observed. Also, a significant decrease in pre- (4.1% SD 3.3% ; p = 0.0001) and post-training (2.9% SD 2.7% ; p = 0.0004) circumference was observed. Acute effects : A significant increase in pain was observed in session 5, while a significant increase in circumference was observed in session 6-8, 10 and 13-16. Progressive resistance training initiated in the early post-operative phase following unicompartment knee arthroplasty does not increase the pain level immediately after a training session, despite frequent increases in joint effusion. Furthermore, pre- and post levels of pain and joint effusion dropped significantly following the intervention period.

Original languageEnglish
JournalActa Orthopaedica Belgica
Pages (from-to)262-268
Number of pages7
Publication statusPublished - Sep 2018

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