AB080. Exercise induced changes in intraocular pressure is related to systemic dehydration
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Bibliographic record
Abstract
Background: A transient reduction in intraocular pressure (IOP) after an aerobic exercise is found time and again across studies in literature. It has been suggested that systemic dehydration could be a possible mechanism driving these hypotensive effects of exercise. However, IOP reduction never had been examine in hyper versus hypo-hydration conditions for a same group of participants. The purpose of this study is to examine the influence of hyper and hypo hydration conditions on exercise-induced fluctuations in intraocular pressure. Methods: Thirteen participants rode an ergocycle in a temperate room for 90 minutes, at 59% of their maximal aerobic capacity, in a state of both hyper and hypo-hydration. IOP was measured at 0, 5, 30, 60 and 90 minutes, and 30 minutes after exercise. Reduction in body weight was measured at 0, 30, 60 and 90 minutes. Results: There is an initial drop in IOP under both conditions followed by a rise in IOP at 30 minutes that is nearly equal to the baseline. From that point on, IOP hovers around baseline values in the hypo-hydrated condition and increases until the end of the exercise protocol in the hyper-hydrated condition. A repeated-measures ANOVA showed a significant interaction between time and condition F(5,60) =3.99, P=0.003, as well as a main effect of time F(5,60) =7.90, P<0.001, and a main effect of condition F(1,12) =5.83, P=0.033. Conclusions: The results of this study, when taken with others that looked specifically at factors of exercise, hydration and IOP suggest that fluctuations in IOP during exercise are likely a homeostatic response related fluid intake and not because of any specific benefit incurred through exercise.
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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 | 0.001 | 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 it