Muscle Oxygenation of the Paretic and Nonparetic Legs Measured During Arterial Occlusion and Exercise in Chronic Stroke
Bibliographic record
Abstract
Oxygen delivery and demand are reduced in the paretic leg post-stroke, reflecting decreases of vascular function and reductions of muscle quantity and quality. It is unknown how muscle oxygenation is altered post-stroke and how it relates to functional ambulation. Skeletal muscle O2 saturation (SMO2) of the paretic and nonparetic legs of eleven post-stroke individuals were monitored with two near-infrared spectroscopy (NIRS) devices during rest, arterial occlusion, submaximal exercise and six-minute walk test (6MWT). Oxygen consumption (p=0.03) and microvascular responsiveness (p=0.04) were reduced in the paretic compared to the nonparetic leg. The exercise deoxygenation slope in the paretic leg was significantly steeper than the non-paretic leg (p=0.047) indicating a greater oxygen mismatch at the onset of exercise. Average 6MWT SMO2 of each leg was not significantly correlated with 6MWT distance. These impairments in the paretic leg may require strategies like prolonged warmups, resistance, or single leg training to improve muscle oxygenation.
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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 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 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) | 0.002 | 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".