Efficacy of Open versus Closed Kinetic Chain Exercises on Dynamic Balance and Health Status in Individuals with Osteoarthritis of Knee Joint: A Quasi-experimental Study
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Bibliographic record
Abstract
Introduction: Osteoarthritis is an inflammatory disorder characterised by changes in the biomechanics, biochemistry and genetic background of joint cartilage and subchondral bone. When distal parts move freely throughout exercises in a weight-bearing position, the phrase open kinetic exercises is employed. Closed kinetic exercises are employed in a weight-bearing position when the body travels through a hard and quick distal phase. Aim: To compare the efficacy of Open Kinetic Chain (OKC) and Closed Kinetic Chain (CKC) exercises on dynamic balance and health status in individuals with osteoarthritis of knee joint. Materials and Method: A single-blinded experimental study was conducted from April 2020 to May 2021 at Dr D.Y. Patil college of Physiotherapy, Pimpri-Chinchwad area, Pune, Maharashtra, India. A sample of 30 subjects with unilateral osteoarthritis of knee joint, between the age of 40-60 years of both genders, were recruited. They were divided into open kinetic group (Group A) and closed kinetic group (Group B) using convenient sampling method. Y-balance and Western Ontario and McMaster Universities Index of Osteoarthritis (WOMAC) (Pune CRD version) were used as outcome measures-preintervention, post two weeks and post four weeks of intervention. Data normality was tested by Shapiro-wilk test. Significance was tested using paired t-test within the groups for WOMAC and Y-balance test. Unpaired t-test was used between the groups. Results: Among 30 subjects, 17 were males and 13 females. There was a significant improvement in dynamic balance (p-value=0.001) and WOMAC (p-value=0.001) in both the groups. In group A, preintervention mean values for WOMAC was 41.2±10.53, and post four weeks of intervention it was 34.53±10.12 (p-value=0.001). Preintervention mean for Y-balance test was 0.554±14.6 and after four weeks of intervention mean was 0.586±13.8 (p-value <0.001). In group B, preintervention mean for WOMAC was 40.87±8.33, and after four weeks of intervention, mean was 30.47±7.22 (p-value=0.001); while preintervention mean for Y-balance test was 0.583±7.8 and after four weeks of intervention, mean was 0.645±7.0 (p-value=0.001). Between groups, analysis showed p-value=0.051 for both groups post four weeks of intervention. Conclusion: The study concluded that CKC exercises are more effective than OKC exercises in improving dynamic balance and decrease in pain, stiffness, and improving physical function in knee osteoarthritis.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.004 | 0.002 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it