Effects of isokinetic muscle strengthening on balance, proprioception, and physical function in bilateral knee osteoarthritis patients with moderate fall risk
Bibliographic record
Abstract
OBJECTIVES: This study aims to assess the effects of isokinetic quadriceps and hamstring strengthening exercises on balance, proprioception, and physical function in patients with moderate-to-severe knee osteoarthritis and moderate fall risk. PATIENTS AND METHODS: Between November 2011 and December 2012, a total of 39 participants (30 females, 9 males; mean age 61.7±8.6 years; range, 18 to 79 years) with Grade 2 or 3 knee osteoarthritis according to the Kellgren-Lawrence radiographic grading system and moderate risk of fall with active knee pain were included in this study. All participants received isokinetic quadriceps and hamstring strengthening exercises for six weeks. Pre-treatment quadriceps and hamstring muscle strength (peak torque and total work value) and quadriceps to hamstring muscle strength ratio at angular velocities of 60°/sec and 180°/sec, range of motion (ROM), average proprioceptive errors at 15-45° and 30-60°, the Berg Balance Scale (BBS) scores, the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) subscale scores, the Visual Analog Scale (VAS) scores, and physical function tests results were compared with the post-treatment results. The correlations of pre- and post-treatment BBS and average proprioceptive error at 15-45° and 30-60° changes to other pre- and post-treatment clinical measurements changes were calculated. RESULTS: Post-treatment quadriceps and hamstring muscle strength at angular velocities of 60°/sec and 180°/sec and quadriceps to hamstring muscle strength ratios at angular velocity of 60°/sec, ROM, average proprioceptive errors at 15-45° and 30-60°, BBS scores, WOMAC subscale scores, VAS scores, and physical function tests significantly improved compared to the pre-treatment results (p<0.001). Statistically significant correlations were found between the pre- and post-treatment BBS score changes and pre- and post-treatment VAS (p=0.015), WOMAC-Pain (p=0.017), WOMAC-Physical Function (p=0.005) scores and Timed Up and Go Test (p=0.036) scores. CONCLUSION: Inclusion of isokinetic quadriceps and hamstring strengthening exercises into the rehabilitation programs for the patients with knee osteoarthritis may improve the quality of life and contribute to the decreased risk of fall.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| 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 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".