Impact of Tart Cherry Juice on Joint Flexibility and Pain in Individuals with Self-Reported Knee Osteoarthritis (P01-030-19)
Bibliographic record
Abstract
The purpose of this study was to examine the daily consumption of tart cherry juice in comparison to a placebo juice on symptoms associated with knee osteoarthritis in both men and woman, age 45–79 years old, for a treatment period of 120 days. In a randomized, double-blind control trial, a total of 66 adults with self-reported symptomatic knee OA, were randomized to either consume a 16 oz of tart cherry juice (TCJ) or a placebo juice daily for 4 months. Pain, mobility, plasma biomarkers of cartilage metabolism were evaluated at baseline, 2 months and 4 months. Pain, stiffness, and impact on quality of life were assessed using Self-administered Modified Short Form McGill Pain Questionnaire, while flexibility of the afflicted joint(s) was assessed via range of motion assessment (ROM). Plasma biomarkers related to cartilage metabolism such as glycoprotein 39 (YKL-40), hyaluronic acid, insulin-like growth factor(IGF)-1, and insulin-like growth factor binding protein (IGFBP-3) were determined. A total of 57 participants completed the study with an attrition rate of 9%. Pain and impact on quality of life decreased significantly at mid-point in the TCJ group, but these improvements were not maintained at the final time point. At midpoint, right knee ROM increased significantly in the TCJ at mid-point, but did not maintain significant at the end of the treatment period. Knee extension and knee flexion also improved significantly in the TCJ group from baseline to midpoint, while there was no significant change in the placebo group. The TCJ group had an overall significant decrease in plasma YKL-40, a marker of cartilage destruction, while no changes were observed in the placebo group. A significant decrease in the plasma IGF-1 and a non-significant up trend in IGFBP-3 were observed in the placebo group, while in the TCJ group no changes in IGF-1 and a non-significant decrease in IGFBP-3 was observed. There were no changes in the hyaluronic acid in the TCJ group during the study duration, but a non-significant up trending was noticed in the placebo group. The findings of the study suggest that daily consumption of tart cherry juice results in improvement in mobility, relief of pain-related symptoms and quality of life, and selective markers of cartilage health. Cherry Marketing Institute.
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How this classification was reachedexpand
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 | 0.001 | 0.000 |
| 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 | 0.000 |
| 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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, 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".