Effects of a Six-Week Eccentric Exercise Program on Patients with Patellar Tendinopathy: Single-Subject Research Study
Bibliographic record
Abstract
Purpose: Eccentric exercise is commonly recommended in the conservative treatment of chronic tendinopathies. This single-subject research study evaluated the effects of a six-week eccentric exercise program developed for patients with patellar tendinopathy (jumper's knee). Methods: Four patients (mean age 23.75 years; three female, one male) with unilateral patellar tendinopathy participated in this study. A nonconcurrent multiple baseline design was implemented and involved repeated measures of knee pain, knee function, and peak isometric force of the quadriceps and hamstring muscles. Measurements of isokinetic average torque of the quadriceps and hamstring muscles were collected prebaseline and postintervention. The intervention phase involved a six-week eccentric exercise program. Data were analyzed both visually and statistically. Results: Visual results indicated reductions in intensity (n = 3) and unpleasantness (n = 3) of knee pain, improved knee function (n = 3), increased isometric quadriceps peak force of the ipsilateral side (n = 3) and the contralateral side (n = 4), increased isometric hamstring peak force of the ipsilateral side (n = 1) and the contralateral side (n = 1), and increased concentric average torque of the ipsilateral quadriceps (n = 2) and the contralateral side (n = 3). Most visual analyses were supported by the C-statistic. Discussion: The eccentric exercise program showed mixed clinical benefits for four patients with patellar tendinopathy. However, none of the patients achieved full recovery within the suggested six-week treatment period.
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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 | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| 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".