Comparison of the open kinetic chain and closed kinetic chain strengthening exercises on pain perception and lower limb biomechanics of patients with mild knee osteoarthritis: a randomized controlled trial protocol

Abstract

Background Clinical recommendations suggest exercises as the main treatment modality for patients with knee osteoarthritis (OA). This study aimed to compare the effects of two different exercise interventions, i.e., open kinetic chain (OKC) and closed kinetic chain (CKC) exercises, on the pain and lower limb biomechanics of patients with mild knee OA. Method A total of 66 individuals with painful early knee OA, aged 50 years and above, with body mass index (BMI) between 18.9kg/m2 and 29.9 kg/m2 in Kelantan, Malaysia, will be recruited in this study. Participants will be randomly allocated into three different groups, either the OKC, CKC, or control groups. All three groups will attend an individual session with a physiotherapist. The participants in the OKC and CKC groups will perform the exercises three times weekly for 8 weeks at their home. The control group will receive education about clinical manifestations, risk factors, diagnosis, treatment, and nursing care for knee via printed materials. The primary outcomes include self-reported pain scores (visual analog scale), disability scores (Western Ontario and McMaster Universities Arthritis Index), and quality of life scores (Osteoarthritis Knee and Hip Quality of Life). Secondary outcomes include lower limb biomechanics during gait and sit-to-stand as well as isokinetic knee strength. The outcomes will be measured before and after the intervention. Discussion The present study will compare the effects of two different home-based exercise intervention programs among patients with mild knee OA. The study findings will provide vital information that can be used to design an effective exercise program that aims at delaying the OA progression. Trial registration The protocol was registered on 22 December 2020 at ClinicalTrials.gov (registration number: NCT04678609).

An Update on Clinical Utility of Musculoskeletal Ultrasonography in Knee Osteoarthritis

“…3 Therefore, early and accurate detection and treatment of KOA are necessary to delay the progression and maintain their activities of daily living. 4,5 Among diagnostic and therapeutic procedures for KOA, conventional anteroposterior weight-bearing radiography (X-ray) remains the primary imaging. X-ray is mainly used to detect changes in bone structure, such as osteophyte formation, bony remodeling, and joint space narrowing (JSN).…”

“…With an aging society and a significant increase in the obese population, the incidence of KOA has increased significantly, affecting general health worldwide 3 . Therefore, early and accurate detection and treatment of KOA are necessary to delay the progression and maintain their activities of daily living 4,5 …”

Beda Pengaruh Antara Latihan Open Kinetic Chain Dan Latihan Isometrik Pada Otot Quadriceps Terhadap Penurunan Nyeri Penderita Osteoartritis Knee

“…Pada saat latihan isometrik, gerakan yang dilakukan akan menghasilkan kekuatan otot tanpa perubahan panjang otot dan tidak menyebabkan gerakan pada sendi yang sakit. Latihan isometrik sangat baik dan sesuai digunakan bagi penderita yang tidak dapat mentoleransi gerakan sendi berulang seperti pada kondisi osteoartritis lutut (Kisner, Caroline;Colby, 2007) Berdasarkan penelitian (Ng et al, 2022) dengan jumlah subyek 66 orang dan dibagi menjadi 3 kelompok perlakuan (open kinetic chain, close kinetic chain dan kelompok kontrol) pada penderita osteoarthritis lutut, dimana hasil akhir penelitian menunjukkan kelompok yang diberikan open kinetic chain ataupun close kinetic chain mengalami penurunan nyeri dan peningkatan kemampuan fungsional dibandingkan dengan kelompok kontrol. Berdasarkan penelitian yang dilakukan oleh (Xie et al, 2018) latihan isometrik otot quadriceps signifikan dalam menurunkan nyeri dan meningkatkan kemampuan fungsional pada penderita osteoartritis lutut.…”