Association Between Anthropometry And Indices Of Cardiovascular Function At Maximal Exercise In Healthy College Students
Bibliographic record
Abstract
The delivery of oxygen to the working muscle has shown to be a limiting factor to maximal aerobic exercise (VO2 Peak). Both cardiac and vascular function play a pivotal role in the transportation of oxygen, however, the association between anthropometric characteristics and indices of cardiac and vascular function have yet to be explored at VO2 peak. PURPOSE: To examine the association between indices of cardiovascular function and anthropometric characteristics at VO2 peak in healthy college students. METHODS: Ten healthy college students (4 males & 5 females) with an age of (mean ± SD) 21.4 ± 1.2 yr, a weight of weight 64.3 ± 16.8 kg and a height of 163.0 ± 10.5 cm performed a graded maximal exercise test on a cycle ergometer. Each participant was fitted with a mouthpiece for the collection of expired gas concentrations and was analysed using a calibrated metabolic cart. Initial flywheel resistance was set at 2 W x bodyweight (kg) and involved 25 W increments every three minutes until volitional fatigue. An automated blood pressure monitor using an arm cuff positioned around the left brachial artery and a heart rate monitor chest strap were utilized to record data immediately upon completion of the test while seated on the cycle ergometer to examine indices of cardiac and vascular function. Data was analysed using a Pearson correlation coefficient to examine the association (r) between anthropometric characteristics and indices of cardiovascular function. This study was approved by and followed the recommendation of the Research Ethics Review board at Langara College. RESULTS: A significant and inverse association between heart rate and both body weight (r = -0.69, p < 0.05) and body surface area (r = -0.65, p < 0.05) were observed. A positive and significant association were observed between; 1) stroke volume and both height (r = 0.82, p < 0.05) and body surface area (r = 0.72, p < 0.05), 2) height and cardiac output (r = 0.77, p < 0.05) and 3) body mass index and both mean arterial pressure (r = 0.64) and systolic blood pressure (r = 0.64, p < 0.05). CONCLUSION: Indices of both cardiac and vascular function are associated with anthropometric characteristics at VO2 peak in healthy college students. This investigation was funded by the Langara College RSAF-1 Grant.
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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) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 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".